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Thematische Bibliographien / Weld plasticity / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Weld plasticity“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Malushin, N. N., D. V. Valuev, A. V. Valueva, and A. Serikbol. "Kinetic Study of the Effect of Plasticity and its Role in Stress Relaxation in the Weld Speed Steel during the Martensitic Transformation." Applied Mechanics and Materials 682 (October 2014): 58–63. http://dx.doi.org/10.4028/www.scientific.net/amm.682.58.

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It is shown that in the weld metal of the type of high-speed steels observe the effect of kinetic plasticity and he owns a defining role in stress relaxation. It is shown that the kinetic effect of plasticity can be used to control the stress in the weld details.

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2

Oddy, A. S., J. A. Goldak, and J. M. J. McDill. "Transformation Plasticity and Residual Stresses in Single-Pass Repair Welds." Journal of Pressure Vessel Technology 114, no. 1 (1992): 33–38. http://dx.doi.org/10.1115/1.2929009.

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Prediction of the residual stresses caused by welding is important when post-weld stress relief is not feasible. Phase changes and transformation plasticity have a significant effect on the residual stresses generated by welding and heat-treatment of some alloys. Transformation plasticity occurs when the stresses generated by the transformation of individual grains interact with the macroscopic stress state to produce plastic strains. Heuristic methods requiring empirical constants have been used in the past. A method based on the fundamental laws of plasticity and basic material properties is

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3

Zhang, Tian Hui, Hong Cai Fu, Wen Min Liu, Yun Chun Cheng, and Ren Ping Xu. "Influence of Weld Heat Input on Weld Joint between B610CF and 16MnR Steel." Advanced Materials Research 154-155 (October 2010): 421–24. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.421.

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The influence of weld heat input on weld joint between B610CF and 16MnR steel using shielded metal arc welding method was investigated by metallographic experiment and mechanical properties experiment. Metallographic experimental results show that in welded metal with the increasing of weld heat input the quantity of bainite is decreased and crystalline grain is larger; but in both B610CF and 16MnR steel heat affected zone, with the increasing of weld heat input there is no distinct difference in microstructure. Mechanical property experimental results show that in weld metal with the increasi

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4

Jang, Gab Chul, Kyong Ho Chang, and Chin Hyung Lee. "Effect of Residual Stress and Weld Metal on Hysteretic Behavior of a Welded Tubular T-Joint." Key Engineering Materials 353-358 (September 2007): 2077–80. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2077.

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During the welding process to make welded joints, residual stress is inevitably generated and weld metal is used. Welding Residual stress is influenced on the behavior of welded joints under monotonic and cyclic loading. And the weld metals used in welding process have different mechanical characteristics than structural steels. Therefore, to accurately predict the hysteretic behavior of welded joints, the effect of residual stress and weld metal must be investigated. In this paper, the residual stress distribution in a welded tubular T-joint was investigated by carrying out three-dimensional

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5

Cho, Jae Hyung, Suk Hoon Kang, Kyu Hwan Oh, Heung Nam Han, and Suk Bong Kang. "Friction Stir Weld Modeling of Aluminum Alloys." Advanced Materials Research 26-28 (October 2007): 999–1002. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.999.

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Friction stir welding (FSW) process of aluminum alloys was investigated using a two-dimensional Eulerian formulation coupling viscoplastic flow and heat transfer and strain hardening. The thermal equation for the temperature was modified to stabilize temperature distribution using a Petrov-Galerkin method. The evolution equation for strength was calculated using a streamline integration method. Predicted strength was compared with experiments. Based on crystal plasticity, texture evolution was predicted during FSW of AA6061.

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6

Jiang, Xiao Xia, Shang Cai Fei, Shuai Zhang, Hua Ji, and Liang Zhu. "Failure Analysis of the Laser-Welded Web-Core Steel Sandwich Panel with Narrow Weld Width T-Joints." Applied Mechanics and Materials 863 (February 2017): 311–16. http://dx.doi.org/10.4028/www.scientific.net/amm.863.311.

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Static three-point bending test of the laser welded Web-core steel sandwich panel was performed. The deformation and failure of the sandwich panel with narrow weld width T-Joints were investigated. The results indicate that the deformation undertakes the following three stages: elastic deformation, plasticity deformation and T-joints cracking. The initial yield load is 25 kN, The maximum bending load is 54 kN. The high strength rate characteristic not be fully reflected. The finite simulation result shows the whole structure has no chance to reach the designed maximum value when the T-joints f

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7

Zhao, Li, Fu Ju Zhang, and Shao Hua Feng. "Microstructure and Mechanical Properties of Weld in 980MPa Grade Steel by Ultra-Narrow Gap Welding." Advanced Materials Research 322 (August 2011): 263–66. http://dx.doi.org/10.4028/www.scientific.net/amr.322.263.

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980MPa grade high strength low alloy steel was welded by ultra-narrow gap welding. Observed by optical metalloscope, there were large majority of equiaxial crystals in weld centers, which was the weld cross-section of 18.3%. Each weld could be compartmentalized into original microstructure zone, over heated zone and normalizing zone under next weld thermal cycle, in which the microstructures were almost the same. Through quantificational metallographic analysis, it was found there was more than 98.9% of acicular ferrite in weld metal, and other microstructures were fine. Mechanical test indica

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8

Matyunin, V. M., A. P. Sliva, A. Marchenkov Yu, et al. "Non-destructive testing of physical and mechanical properties of local zones in welded joints." Journal of Physics: Conference Series 2275, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1742-6596/2275/1/012002.

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Abstract The influence of the “saw-tooth” type electron beam sweep on the penetration shape during electron-beam welding of 30KhGSA high-strength steel with different welding modes was investigated. Using the instrumented indentation method, the distribution of Young’s modulus, as well as the characteristics of strength and plasticity in the welded joints cross-sections, was obtained. It has been found that in the weld metal there is a sharp increase in strength characteristics, while the plasticity ones are significantly reduced. The values of the Young’s modulus also varied over the cross-se

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9

Gu, Lidong, Qi Tang, Yanqing Li, Fengde Liu, and Piyao Liu. "Improving Plasticity of Ferritic Stainless Steel Welded Joints via Laser Spot Control." Micromachines 14, no. 11 (2023): 2072. http://dx.doi.org/10.3390/mi14112072.

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The plasticity of welded 441 ferritic stainless steel joints was controlled by varying the laser beam spot diameter during laser welding. A stainless steel plate thickness of 1.2 mm was used. The microstructures of the welded joints were analyzed for various spot diameters. The elongation of breaks and the reduced area of tensile specimens were analyzed to study the effects of spot diameter on plasticity of the welded joints. The results showed that the weld melt width and weld column crystal size increased with the spot diameter, but isometric crystals in the center of the weld were gradually

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10

Chen, Yun Chun, Wen Min Liu, Hou Sen Yang, Tian Hui Zhang, and Pei Jun Yan. "Influence of Weld Parameter on Penstock Joint of B610CF-16MnR Steel." Advanced Materials Research 675 (March 2013): 270–74. http://dx.doi.org/10.4028/www.scientific.net/amr.675.270.

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Weld parameter is an important factor affecting micrographic structure and mechanical properties of weld joints. It was investigated by metallographic experiments and mechanical property experiments for the influence of weld heat input on dissimilar steel weld joint of penstock using B610CF and 16MnR steel in water conservancy and hydropower engineering using shielded metal arc welding method and mixed active gas arc welding method. Metallographic experimental results show that in weld metal with the increase of weld heat input the quantity of bainite decreases and crystalline grain is larger

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11

Zhang, Tian Hui, Hong Cai Fu, Pei Jun Yan, Fang Wei Jin, and Qiong Wang. "Microstructures and Mechanical Properties of Weld Joint between B610CF and 16MnR Steel." Advanced Materials Research 139-141 (October 2010): 352–55. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.352.

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Weldability analysis, metallographic experiments and mechanical property experiments were carried out on weld joint between B610CF and 16MnR steel using shielded metal arc welding method and mixed active-gas arc welding method. Weldability analysis shows that the weld joint has some tendency to cold crack, and preheat is needed before welding. Metallographic results show that there are ferrite and bainite in weld metal, and in heat-affected zone of B610CF side there are ferrite and bainite, on which there is much dispersed slight Fe3C, and in heat-affected zone of 16MnR side there are ferrite,

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12

Muránsky, Ondrej, Cory J. Hamelin, Mike C. Smith, Phillip J. Bendeich, and Lyndon Edwards. "The Role of Plasticity Theory on the Predicted Residual Stress Field of Weld Structures." Materials Science Forum 772 (November 2013): 65–71. http://dx.doi.org/10.4028/www.scientific.net/msf.772.65.

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Constitutive plasticity theory is commonly applied to the numerical analysis of welds in one of three ways: using an isotropic hardening model, a kinematic hardening model, or a mixed isotropic-kinematic hardening model. The choice of model is not entirely dependent on its numerical accuracy, however, as a lack of empirical data will often necessitate the use of a specific approach. The present paper seeks to identify the accuracy of each formalism through direct comparison of the predicted and actual post-weld residual stress field developed in a three-pass 316LN stainless steel slot weldment

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13

Lazzarin, P., and P. Livieri. "Welded joints: Limits on criteria for plasticity zones located at weld toes." Welding International 14, no. 10 (2000): 806–10. http://dx.doi.org/10.1080/09507110009549272.

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14

Dimas, Agustinus, Tatacipta Dirgantara, Leonardo Gunawan, Annisa Jusuf, and Ichsan Setya Putra. "The Effects of Spot Weld Pitch to the Axial Crushing Characteristics of Top-Hat Crash Box." Applied Mechanics and Materials 660 (October 2014): 578–82. http://dx.doi.org/10.4028/www.scientific.net/amm.660.578.

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Numerical study of the effect of spot weld pitch with respect to top-hat crash box crushing characteristics are presented in this paper. Belytschko-Lin-Tsay shell element was used for modeled columns wall with Piecewise Linear Plasticity material model. The impactor was modeled using hexahedral solid elements and assumed as a rigid body. Spot weld joints used to connect mild steel St37 plates of the columns were modeled using beam element and solid element. Impact characteristics related to the spot weld pitch and models were evaluated from simulation results in the form of crushing force vs a

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15

Xiong, Ying. "Analysis of the Effect of Load Ratio on Fatigue Crack Growth." Advanced Materials Research 181-182 (January 2011): 330–36. http://dx.doi.org/10.4028/www.scientific.net/amr.181-182.330.

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In this paper, fatigue test and numerical simulation are carried out for Q345 weld joint under constant amplitude loading at different R-ratio using the compact tension samples with 3.8mm thickness. The result indicates that fatigue crack growth rates in the base metal is not sensitive to R-ratio, but the fatigue crack growth rates increases in the weld zone with R-ratio increasing. The effect of R-ratio on fatigue crack growth is analyzed based on J-S cycle plasticity model and Jiang’s multiaxial fatigue criterion. The finite element method (FEM) is used for the stress-strain analysis with th

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16

Wang, Qing Bao, Zhuo Xin Li, Yao Wu Shi, Guo Dong Li, and Hui Wang. "Overlaying Weld Cracks of Pinch Roller and its Formation Mechanism." Advanced Materials Research 512-515 (May 2012): 1965–71. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1965.

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Overlaying pinch roller has higher surface hardness. If the overlaying technology is improper, small circumferential cracks may occur on the welded surface and even peel off. From failure analysis, it is indicated that the contents of C, S, and O were higher around the cracking area in the deposited metal. Optical microscopic observation shows that some cracks grew along the direction of columnar crystals and residual austenite. Due to high content of inclusions and austenite in the deposited material and poor plasticity of the deposited metal, small cracks are easy to be found at the defect s

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17

MIKAMI, Yoshiki, Keisuke SOGABE, and Masahito MOCHIZUKI. "EBSP-based Crystal Plasticity FEM Simulation of Microscopic Stress Distribution in Weld Metal." QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 29, no. 3 (2011): 100s—103s. http://dx.doi.org/10.2207/qjjws.29.100s.

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18

Braga, Vagner, Raquel Alvim de Figueiredo Mansur, Rafael Humberto Mota de Siqueira, and Milton Sergio Fernandes de Lima. "Formability of in-situ Austempered Transformation-induced Plasticity Steels After Laser Beam Welding." Soldagem & Inspeção 23, no. 3 (2018): 402–12. http://dx.doi.org/10.1590/0104-9224/si2303.09.

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Abstract Laser welded Transformation-induced plasticity (TRIP) steels are known to generate martensite in the fusion (FZ) and the heat-affected (HAZ) zones. To solve this issue, the present study proposes a high temperature (HT) welding to avoid decay below the martensite start temperature after laser welding. Therefore, an inductive heating has been used to reach 500 °C before laser weld of superposed 1.6mm thick TRIP steel class 750. After welding the temperature was kept constant at 500 °C for more 10 minutes in order to austemper. The microstructures of the welds at high temperature are co

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19

Zhang, Qiushi, Hongcheng Chi, Hong Zhang, and Fengde Liu. "Effect of joint-extrusion-force on the plasticity of beam oscillation fiber laser welded X₂CrTiNb₁₈ ferritic corrosion resisting steels." Journal of Physics: Conference Series 2459, no. 1 (2023): 012120. http://dx.doi.org/10.1088/1742-6596/2459/1/012120.

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Abstract The effect of extrusion force on the microstructure and plasticity of the X2CrTiNb18 ferritic corrosion resisting steels joints which were welded by beam oscillation laser welding was studied. The cross section profile of welded joint beam oscillating fiber laser welding & extrusion (OLW&E) was similar to that of the beam oscillation laser welding (OLW), but the weld width of OLW&E was slightly narrow. The differences of microstructure between them were very obvious. In the OLW&E weld zone (WZ), on the one hand, the quantity of small grains increased obviously, and on

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20

Wang, Wen-Quan, Shu-Cheng Dong, Fan Jiang, and Ming Cao. "Effects of Ar and He on Microstructures and Properties of Laser Welded 800MPa TRIP Steel." MATEC Web of Conferences 142 (2018): 03004. http://dx.doi.org/10.1051/matecconf/201814203004.

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Fiber laser welding of cold rolled TRIP steel (transformation Induced Plasticity steel) sheet with tensile strength of 820MPa and thickness of 1.4mm was carried out using shielding gases Ar and He, respectively. For the same laser power and welding speed, the effects of different shielding gases on penetration and bead section morphologies were investigated. The microstructures and properties of the TRIP steel joints were also studied. The investigation showed that higher penetration and lower porosity could be obtained under shielding gas He using the same laser power and welding speed. The m

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Kalácska, Eszter, Kornél Májlinger, Enikő Réka Fábián, and Pasquale Russo Spena. "MIG-Welding of Dissimilar Advanced High Strength Steel Sheets." Materials Science Forum 885 (February 2017): 80–85. http://dx.doi.org/10.4028/www.scientific.net/msf.885.80.

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The need for steel materials with increasing strength is constantly growing. The main application of such advanced high strength steels (AHSS) is the automobile industry, therefore the welding process of different types of AHSSs in dissimilar welding joint was investigated. To simulate the mass production of thin steel sheet constructions (such as car bodies) automated metal inert gas (MIG) welding process was used to weld the TWIP (twinning induced plasticity) and TRIP (transformation induced plasticity) steel sheets together. The welding parameters were successfully optimized for butt welded

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22

Wang, Q., C. L. Qi, D. L. Sun, X. L. Han, and D. Q. Wang. "Effect of Heat Treatment on Microstructure and Mechanical Property of 30Si2MnCrMoV Welded Joint." Advanced Materials Research 664 (February 2013): 754–59. http://dx.doi.org/10.4028/www.scientific.net/amr.664.754.

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The effect of different heat treatments on microstructure and mechanical property of 30Si2MnCrMoV steel weld specimen was studied in this paper．A stress relieving annealing on the specimen was carried out immediately after welding. And then two heat treatments were carried out on the specimen. Observation results showed that the original microstructure of 30Si2MnCrMoV welded joints was granular pearlite and the microstructure of weld bead was coarse martensite. Lots of tempered martensite exited in the weld specimen under quenching-tempering heat treatment, the carbide was coarse and the conte

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23

Ji, Ang, Liping Zhang, and Genchen Peng. "Influence analysis of anti-spatter spray on welding process and weld properties." Journal of Physics: Conference Series 2541, no. 1 (2023): 012019. http://dx.doi.org/10.1088/1742-6596/2541/1/012019.

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Abstract Based on the accumulation situation of anti-spatter spray in actual manufacturing, butt joints are implemented to analyze the state changes of two types of anti-spatter spray and their effect on arc stability, molten pool fluidity, and weld performance. The results show that the fluidity of water-based anti-spatter spray is significantly better than that of oil-based anti-spatter spray in the welding process, resulting in a large accumulation near the arc suppression position. This causes strong fluctuations in the arc and molten pool, while the oil-based anti-spatter spray can reduce

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24

Hu, B. R., J. Z. Liu, B. Chen, L. F. Wang, and Xue Ren Wu. "Fatigue Behavior and Life Prediction for Argon-Arc Weld Joints Based on Small Crack Methodology." Key Engineering Materials 306-308 (March 2006): 157–62. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.157.

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Experimental and analytical studies were made on the fatigue behavior and life prediction for argon-arc welded titanium alloy joints, TA15. High cycle fatigue tests at two stress ratios, R=0.5 and 0.06, were carried out on smooth specimens with the argon-arc weld joint located at the specimen center section. Through macroscopic observation and SEM fractographic analysis, it was found that most of the cracks were initiated at weld defects such as voids and inclusions at the edge of weld and in the heat affected zone (HAZ). A small crack methodology based on the plasticity-induced crack-closure

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Muránsky, O., C. J. Hamelin, M. C. Smith, P. J. Bendeich, and L. Edwards. "The effect of plasticity theory on predicted residual stress fields in numerical weld analyses." Computational Materials Science 54 (March 2012): 125–34. http://dx.doi.org/10.1016/j.commatsci.2011.10.026.

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26

Paredes, Marcelo, Junhe Lian, Tomasz Wierzbicki, Mihaela E. Cristea, Sebastian Münstermann, and Philippe Darcis. "Modeling of plasticity and fracture behavior of X65 steels: seam weld and seamless pipes." International Journal of Fracture 213, no. 1 (2018): 17–36. http://dx.doi.org/10.1007/s10704-018-0303-x.

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27

Blach, Juraj, and Ladislav Falat. "The Influence of Thermal Exposure and Hydrogen Charging on the Notch Tensile Properties and Fracture Behaviour of Dissimilar T91/TP316H Weldments." High Temperature Materials and Processes 33, no. 4 (2014): 329–37. http://dx.doi.org/10.1515/htmp-2013-0053.

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AbstractThe effects of ageing and hydrogen charging on the notch tensile properties and fracture behaviour of individual heat-affected zones (HAZ) and Ni-based weld metal (Ni WM) of T91/TP316H weldments were investigated. After the post-weld heat treatment at 750 °C for 1 h the weldments were annealed at 600 °C for 1000 h and 5000 h, respectively. All heat-treated states were studied in condition without as well as with hydrogen charging. Thermal expositions led to additional precipitation and microstructure coarsening but their influence on tensile strength was insignificant. In contrast, rem

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Perulli, Patrizia, Michele Dassisti, and Giuseppe Casalino. "Thermo-Mechanical Simulation of Hybrid Welding of DP/AISI 316 and TWIP/AISI 316 Dissimilar Weld." Materials 13, no. 9 (2020): 2088. http://dx.doi.org/10.3390/ma13092088.

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In this paper, hybrid laser-MAG (metal active gas) welding of twinning-induced plasticity (TWIP) and dual-phase (DP) steels with austenitic stainless steel (AISI316) was simulated by means of the finite element method. A thermo-mechanical model, which uses a 3D heat sources, was developed using the software Simufact Welding. The calculated dimensions, shape and distortion of the weld were compared with the experimental results, thence the model was validated. The metallurgical transformations for the DP steel were evaluated using the continuous cooling transformation (CCT) diagram and the calc

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Bhat, Sunil, and Vijay G. Ukadgaonker. "Fatigue Life Enhancement of Welded Steel-Steel Composite during Crack Growth from Weak to Strong Steel: An Experimental Validation." Key Engineering Materials 417-418 (October 2009): 825–28. http://dx.doi.org/10.4028/www.scientific.net/kem.417-418.825.

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Strength mismatch effect across weld interfaces, generated by welding weak and strong steels, influences fatigue and fracture properties of a welded bimetallic composite. Advancing fatigue crack tip in weak parent steel is shielded from the remote load when it reaches near the interface of ultra strong weld steel. Entry of crack tip plasticity into weld steel induces load transfer towards weld which dips crack growth rates thereby enhancing the fatigue life of the composite. A computational model for fatigue life prediction of strength mismatched welded composite under K dominant conditions is

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Černý, Michal, and Josef Filípek. "Synergy of corrosion activity and defects in weld bonds." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 52, no. 2 (2004): 105–14. http://dx.doi.org/10.11118/actaun200452020105.

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Presented work evaluates synergism of atmosphere corrosive action and material defects. These defects appear not only during particular technological process of connecting of structural material but also during cooling and up to hundreds hours afterwards. The multiplication of degradation impact of defects in joint welds and heat-affected zone caused by activity of atmosphere acidic medium is simulated in condensation chambers. The verification is realized by use of mechanical uniaxial tension loading and following fractographic and metalgraphic analysis.The metal plasticity is sufficient fact

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Liu, J. Z., Xue Ren Wu, L. F. Wang, B. R. Hu, and B. Chen. "Effect of Size and Location of a Weld Defect on Fatigue Life for Argon-Arc Welded Titanium Alloy Joint." Advanced Materials Research 33-37 (March 2008): 121–28. http://dx.doi.org/10.4028/www.scientific.net/amr.33-37.121.

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Analytical studies were made on effect of size and location of a weld defect on fatigue life for argon-arc welded titanium alloy joint. In the analyses, a weld defect was assumed as an initial crack, and the crack growth life was taken as total fatigue life. By using the Isida and Noguchi’s stress intensity factor solution for a plate containing an embedded elliptical subsurface crack under tension, the life prediction code FASTRAN3.9 was revised. A small crack methodology based on the plasticity-induced crack-closure concept and the effective stress intensity factor range, Keff , was used to

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32

Faucon, Lorenzo Etienne, Tim Boot, Ton Riemslag, Sean Paul Scott, Ping Liu, and Vera Popovich. "Hydrogen-Accelerated Fatigue of API X60 Pipeline Steel and Its Weld." Metals 13, no. 3 (2023): 563. http://dx.doi.org/10.3390/met13030563.

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In this work, the hydrogen fatigue of pipeline steel X60, its girth welds and weld defects were investigated through in situ fatigue testing. A novel in situ gaseous hydrogen charging fatigue set-up was developed, which involves a sample geometry that mimics a small-scale pipeline with high internal hydrogen gas pressure. The effect of hydrogen was investigated by measuring the crack initiation and growth, using a direct current potential drop (DCPD) set-up, which probes the outer surface of the specimen. The base and weld metal specimens both experienced a reduction in fatigue life in the pre

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Muth, Adrienne, Carl Fischer, Sabine Oeser, and Heiner Oesterlin. "Fully coupled crystal plasticity and hydrogen diffusion modeling of X52 pipeline steel and weld microstructures." Computational Materials Science 258 (August 2025): 114005. https://doi.org/10.1016/j.commatsci.2025.114005.

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34

Xu, Jiachen, Xiaoxiao Zhou, and Dawei Zhu. "Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW." Crystals 12, no. 2 (2022): 176. http://dx.doi.org/10.3390/cryst12020176.

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Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionall

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Puzyr, Ruslan, Yulia Siraia, and Viktoriia Diatlovska. "Modeling the material of the cylindrical work with welded seam at compression distribution of vehicle parts." Mechanics and Advanced Technologies 5, no. 1 (2021): 130–35. http://dx.doi.org/10.20535/2521-1943.2021.5.1.218045.

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It is shown that the distribution of the ends of tubular billets, which are the main connecting elements of the vehicle brake system, is accompanied by a loss of stability in the circumferential and axial directions, as well as localization of deformations, followed by destruction in the form of a longitudinal crack that occurs at the end of the preform. The presence of the weld complicates the general conditions of deformation during crimping and distribution and leads to the destruction of the workpiece along the weld. To prevent cracking, it is necessary to tighten the crimping and distribu

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Słania, J., G. Golański, and W. Gasz. "Braze Welding of Elements of Industrial Fittings." Archives of Metallurgy and Materials 60, no. 1 (2015): 391–401. http://dx.doi.org/10.1515/amm-2015-0065.

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Abstract Resistance to stretching, a quality of specimen made by braze welding method were examined as well as usefulness of this method in industry was described. Technology and materials, which are used during braze welding, are depicted on the base of an inspection of joints. The results of macroscopic examinations of sample joints (base material, heat-affected zone and braze weld) are given. Furthermore, the results of the resistance, plasticity and hardness tests of sample joints are presented.

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Tan, Diao, Li Cao, and Wenlei Sun. "A Numerical Simulation Study on the Tensile Properties of Welds in Laser-Arc Hybrid Welding of Q355 Medium-Thick Plates." Coatings 15, no. 3 (2025): 252. https://doi.org/10.3390/coatings15030252.

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Laser-arc hybrid welding was applied to Q355 medium-thick steel plates to improve weld tensile properties, with experimental verification comparing welds to the base material. Numerical simulations identified optimal process parameters, analyzing the effects of heat source distance, welding speed, laser power, and arc power on temperature field distribution and molten pool morphology. Heat source distance had the greatest influence, followed by welding speed, laser power, and arc power. Maintaining a peak welding temperature of 900–1000 K refined the weld grain structure, enhancing the tensile

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Liu, Chuan, Ying Luo, Min Yang, and Qiang Fu. "Effects of material hardening model and lumped-pass method on welding residual stress simulation of J-groove weld in nuclear RPV." Engineering Computations 33, no. 5 (2016): 1435–50. http://dx.doi.org/10.1108/ec-08-2015-0216.

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Purpose – The purpose of this paper is to clarify the effect of material hardening model and lump-pass method on the thermal-elastic-plastic (TEP) finite element (FE) simulation of residual stress induced by multi-pass welding of materials with cyclic plasticity. Design/methodology/approach – Nickel-base alloy and stainless steel, which are used in J-type weld for manufacturing the nuclear reactor pressure head, can easily harden during multi-pass welding. The J-weld welding experiment is carried out and the temperature cycle and residual stress are measured to validate the TEP simulation. The

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Jang, Gab Chul, and Kyong Ho Chang. "Characteristics of the Static and Dynamic Behavior of Steel Piles with a Welded Joint." Materials Science Forum 580-582 (June 2008): 613–16. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.613.

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During welding process to make joints, residual stress is inevitably produced and weld metal should be used. These influence the static and dynamic behavior of steel structures with welded joints, such as steel piles. In steel structures, dynamic mechanical behavior is different to static mechanical behavior. Therefore, to accurately predict the behavior of steel piles with a welded joint under static-dynamic loading, the research on influence of a welded joint on the static and dynamic behavior of steel piles is necessary. For that purpose, a rate-dependent plasticity model was used, consider

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Zhang, Yunlong, Yanbin Chen, Wang Tao, Zhenglong Lei, Zhaohui Yang, and Tiantian Nan. "Influence of Post-Weld Heat Treatments on Microstructure and Mechanical Properties of Laser Beam Welded 2060-T3/2099-T3Al-Li T-Joints." Metals 9, no. 12 (2019): 1318. http://dx.doi.org/10.3390/met9121318.

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The durable structure and robustness of T-joints in the panel materials for civil aircraft are a crucial matter of importance. In this work, the impact of the post-weld heat treatments (PWHTs) on the microstructure and mechanical properties of laser beam welded T-joints of 2060-T3/2099-T3 Al-Li alloy was analyzed. Heat-treatment of the laser beam welded T-joints was carried out in two different ways, namely, solution treatment and artificial aging (STAA) at varied duration and only artificial aging (AA) at varied duration. The microstructure and mechanical properties of the heat-treated joints

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Yan, Yingjie, Yukun Zhang, Lixian Zhao, et al. "Effect of Applied Tensile Stress on Hydrogen-Induced Delayed Fracture Mode of Fe-Ni-Cr Austenitic Alloy Weldment." Metals 12, no. 10 (2022): 1614. http://dx.doi.org/10.3390/met12101614.

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Fe-Ni-Cr austenitic alloys are widely used in hydrogen environments as structural materials. Their weld normally shows higher hydrogen-embrittlement sensitivity than the base metal, endangering large-scale applications. Herein, by using electron microscopy and numerical calculations, the influence of applied load on the fracture mode of hydrogen-embrittled JBK-75 alloy weldment is revealed and correlated with a competition between hydrogen-prompted intergranular decohesion (HPID) and hydrogen-enhanced localized plasticity (HELP). Therefore, independent of the load levels, the weld featuring a

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Ma, Chengyong, Yanchang Qi, Yuqing Zhang, Zhiquan Wu, and Xin Zhang. "Weld defects and precipitates of deposited metal in 9Ni steel welded joint." Materials Science-Poland 40, no. 1 (2022): 25–48. http://dx.doi.org/10.2478/msp-2022-0007.

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Abstract Three kinds of electrode with different niobium contents were developed and compared, and the influence of alloying elements on microstructure and mechanical properties was summarized. Strong carbide elements such as Nb, Ti, and V were added to form stable precipitates. The existence of intercrystalline precipitates leads to pinning and zigzag of grain boundaries, hinders the propagation of cracks, and enhances the low temperature strength and impact toughness of the materials. The No. 1 and No. 2 ENiCrMo-6 electrodes meet the requirements of LNG (liquified natural gas) equipment. The

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Peng, Yun, Yan Chang Qi, Chang Hong He, Zhi Ling Tian, and Hong Jun Xiao. "Microstructure and its Formation Mechanism of Weld Metal of Al-Bearing TRIP Steel." Materials Science Forum 638-642 (January 2010): 3591–96. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.3591.

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A transformation-induced plasticity steel was welded by gas tungsten arc welding. The microstructure of fusion zone was analyzed by means of optical microscopy and scanning electron microscopy with EDS. It is found that fusion zone may be classified into two zones, the completely melted zone and the partially melted zone. The microstructure of completely melted zone consists predominantly of martensite and bainite, and that of partially melted zone consists mainly of martensite, bainite and ferrite. The formation mechanism of fusion zone microstructure is analyzed. The micro-hardness distribut

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Wang, Hua, Yun Peng Zhang, and Xiao Yu Zhang. "TZM Alloy TIG Welding Process and Microstructure of Welded Joints." Advanced Materials Research 291-294 (July 2011): 867–71. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.867.

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In this paper, the effect of welding current of the tungsten inert gas arc (TIG) welding process on weld quality of TZM alloy was investigated and the fracture microstructure and mechanical properties of the welding joints of TZM alloy was analyzed by x-ray flaw detection, metallographic microscopic analysis, scanning electron microscopy and mechanical properties test. The results indicate that the weld bead with excellent mechanical properties can be obtained using the welding process parameter with the welding current of 210A, welding speed of 4 mm/s and the argon gas flow rate of 8~12 L/min

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Hu, Yu, Yonghua Shi, Kai Wang, and Jiqiang Huang. "Effect of Heat Input on the Microstructure and Mechanical Properties of Local Dry Underwater Welded Duplex Stainless Steel." Materials 16, no. 6 (2023): 2289. http://dx.doi.org/10.3390/ma16062289.

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Duplex stainless steel welded metals were underwater local dry prepared on S32101 lean duplex stainless steel trapezoidal groove plates with a self-made drain cover employing Supercore 2205P flux-cored filler wire. Different heat inputs were employed to investigate the effects on mechanical characteristics and the microstructure of welded metals. The results demonstrated that as the heat was applied, austenite concentrations in the weld metals increased. It was found that the austenite concentration and the fraction of Σ3-austenite twin-grain boundaries followed the same trends. With increasin

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Liu, Xing, Wanli Ling, Yue Li, Jianfeng Wang, and Xiaohong Zhan. "Interlaminar Microstructure and Mechanical Properties of Narrow Gap Laser Welding of 40-mm-Thick Ti-6Al-4V Alloy." Materials 15, no. 21 (2022): 7742. http://dx.doi.org/10.3390/ma15217742.

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Narrow gap laser welding (NGLW) is a common solution for the welding of thick structures. NGLW was carried out on narrow-gap butt joints of 40 mm-thick Ti-6Al-4V alloy plates with a U-shaped groove. The distribution characteristics of the interlaminar microstructure in different height ranges of the joint were investigated, and the evolution behavior and formation mechanism of the interlaminar microstructure of the joint were also revealed. This showed that a large amount of short needle martensite nucleated and grew up near the fusion line and the upper boundary of the remelting zone. The “so

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Seiichiro TSUTSUMI,, Yuki KIYOKAWA,, Riccardo FINCATO, Yosuke OGINO, Yoshinori HIRATA, and Satoru ASAI. "ASSEEEMENT OF FATIGUE CRACK INITIATION LIFE OF JOINTS BY USING WELD POOR AND CYCLIC PLASTICITY ANALYSIS." Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)) 74, no. 2 (2018): I_337—I_347. http://dx.doi.org/10.2208/jscejam.74.i_337.

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Jaske, Carl E. "Fatigue-Strength-Reduction Factors for Welds in Pressure Vessels and Piping." Journal of Pressure Vessel Technology 122, no. 3 (2000): 297–304. http://dx.doi.org/10.1115/1.556186.

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Fatigue-strength-reduction factors (FSRFs) are used in the design of pressure vessels and piping subjected to cyclic loading. This paper reviews the background and basis of FSRFs that are used in the ASME Boiler and Pressure Vessel Code, focusing on weld joints in Class 1 nuclear pressure vessels and piping. The ASME Code definition of FSRF is presented. Use of the stress concentration factor (SCF) and stress indices are discussed. The types of welds used in ASME Code construction are reviewed. The effects of joint configuration, welding process, cyclic plasticity, dissimilar metal joints, res

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Green, D., R. Parker, and D. Marsh. "Comparison of Theoretical Estimates and Experimental Measurements of Fatigue Crack Growth Under Severe Thermal Shock Conditions—Part II: Theoretical Assessment and Comparison With Experiment." Journal of Pressure Vessel Technology 109, no. 4 (1987): 421–27. http://dx.doi.org/10.1115/1.3264925.

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This paper reports the theoretical assessment of cracking which may occur when a severe cycle comprising alternate upshocks and downshocks is applied to an axisymmetric feature with an internal, partial penetration weld and crevice. The experimental observations of cracking are reported separately. A good agreement was noted even though extensive cycle plasticity occurred at the location of cracking. It is concluded that the LEFM solution has correlated with the experiment mainly because of the axisymmetric geometry which allows a large hydrostatic stress to exist at the internal weld crevice

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Nyrkova, L. I., T. M. Labur, E. I. Shevtsov, et al. "Complex of properties of 2219 alloy weld joint in T62 state under modeling operating conditions." Kosmìčna nauka ì tehnologìâ 28, no. 2 (2022): 14–29. http://dx.doi.org/10.15407/knit2022.02.014.

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A complex of properties of aluminium alloy 2219 welded joint, made by single-pass welding with a non-fusible electrode along and across the rolled product, and heat-treated to the state T62, in liquid amyl and its vapors at a temperature of 50 °C for 45 days was investigated. Characteristics of plasticity and strength of 2219 alloy welded joints are as follows: in the longitudinal (D) direction – yield strength of the welded joint is (301–317) MPa, of the base metal (295—297) MPa, strength limit of the welded joint (409–415) MPa, of the base metal (422–425) MPa, elongation is (4.0–5.8)% and (1

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