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Статті в журналах з теми "Mild steel Testing"

1

Tiley, John, Yimin Zhang, and John G. Lenard. "Hot compression testing of mild steel industrial reheat furnace scale." Steel Research 70, no. 11 (November 1999): 437–40. http://dx.doi.org/10.1002/srin.199905663.

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2

Ardika, I. Nyoman, and I. Nyoman Suardika. "Eksperimen Gabungan Uji Lentur dan Implementasi Teori Wheatstone Bridge untuk Mengetahui Kekuatan Lentur dan Modulus Elastisitas Material Reng Baja Ringan." PROKONS Jurusan Teknik Sipil 15, no. 1 (February 28, 2021): 17. http://dx.doi.org/10.33795/prokons.v15i1.277.

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Анотація:
Abstract Lightweight steel battens are one of the elements roof frame structure buildings. The material that is widely used today is mild steel. To get optimal results use be lightweight steel battens can be done through a structural analysis. In the analysis structure of light steel battens, required the actual dimensions of the cross-section and strength the light steel battens. The actual dimensions of the cross sections are obtained by direct measurement, and strength is obtained through a laboratory testing process either tensile testing or bending testing. This research was conducted by combining the application of Wheatstone Bride theory and bending testing in determining the strength and modulus of elasticity of mild steel battens on eleven test samples of mild steel battens with a length of 600 mm each. The test result data is in the form of load relationship with voltage changes generated from the Wheatstone Bridge network on a multimeter reading connected to the Wheatstone Bridge network. The data processing of the result of the change in voltage test will produce strain, so that the load and strain relationship is obtained. Data analysis of load relationship with stretching and the load-stress relationship will describe the strain-stress relationship. From the results of data processing, the results of the research conducted were obtained yield stress (fy) 407.8739 MPa at 0.2% strain; allowable stress (fa) 271,916 MPa at 0.1333% strain; ultimate stress (fu) 616,094 MPa at a strain of 0.3021%; and Modulus of elasticity (Es) 203921 MPa. Keywords:Mild Steel, Strain, Wheatstonebridge, Stress
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Zainal, Farah Farhana, Muhammad Faiz Fazill, Kamarudin Hussin, Azmi Rahmat, Mohd Mustafa Al Bakri Abdullah, and Warid Wazien. "Effect of Geopolymer Coating on Mild Steel." Solid State Phenomena 273 (April 2018): 175–80. http://dx.doi.org/10.4028/www.scientific.net/ssp.273.175.

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This paper presents the results of a study on the effect of geopolymer coating on mild steel. Geopolymer is synthesis of a fly ash and alkaline activators which are sodium hydroxide solution (NaOH) and sodium silicate solution (Na2SiO3). Fly ash is one of residue produced during the combustion of coal in coal power plant. In this study, fly ash class F based geopolymer was used as a source material. The alkaline activators then were mixed with fly ash to produce the geopolymer paste which acts as a coating material. The mixture was placed in molds and reinforcement bar were embedded in geopolymer paste. After that, the corrosion behavior of reinforcement bars for all samples were observed by using Open Circuit Potential (OCP) testing. Referring the pourbaix diagram regarding OCP testing, samples are in passivity region. Besides that, mild steel also were coated with geopolymer paste for adhesion test. Elcometer 108 was used for adhesion strength test. Morphology analysis also been used to determine the microstructure of fly ash and geopolymer paste. Phase analysis was used for the analysis phase between fly ash, geopolymer paste and mild steel coated with geopolymer paste. From OCP test, pourbaix diagram shows that samples is placed in the passivity region, iron (III) oxide (Fe2O3) which is in stable phase and iron (II, III) oxide same results as in phase analysis. The minimum potential value for OCP is 0.015 V and the maximum potential value is 0.133 V. For adhesion strength, day 14 got the highest results compared day 7 and day 3 which the results are 2.0 Mpa, 1.9 Mpa and 1.5 Mpa respectively. It is because from day 3 until day 14, the structure of geopolymer paste becomes more compact, denser and better crystallization as shown in morphological analysis.
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Fatchurrohman, Nanang, Low Tze Chin, and Jufriadif Na’am. "TAGUCHI METHOD APPLIED FOR THE INVESTIGATION OF CORROSION LEVEL ON METAL INERT GAS WELDING OF MILD STEEL." BAREKENG: Jurnal Ilmu Matematika dan Terapan 16, no. 3 (September 1, 2022): 845–52. http://dx.doi.org/10.30598/barekengvol16iss3pp845-852.

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Анотація:
Mild steel has a wide range of uses such as in the construction field, automotive field, machinery industry, cookware, and pipeline. Metal Inert Gas (MIG) welding act as an assembly method of mild steel. Corrosion level is a common problem that occurs in MIG welding on mild steel. In this study, the suitable welding parameters such as voltage, number of passes, and method of welding were chosen in the experimental testing and the experimental testing was planned by using the Design of Experiment (DoE) as part of Taguchi method. The welded mild steel specimens were evaluated using a corrosion test. The data analysis was done by using Taguchi method. For the parameter to be the optimum welding parameter, the corrosion level was as low as possible. In this case, the S/N ratio smaller is better common interest is chosen. By using the Minitab 18 software, the S/N ratio was calculated. Hence from the result, the optimum parameter is 9V voltage, three passes and the welding method was circle push.
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A, Arunraj, Ashwin Kumar J, and Ajith J. "Behaviour of Basalt Fiber Reinforced Concrete Filled Mild Steel Tube." International Journal of Engineering & Technology 7, no. 4.2 (September 22, 2018): 15. http://dx.doi.org/10.14419/ijet.v7i4.2.19994.

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The present study is an attempt to understand the behavior of concrete filled steel tubular column under uniaxial load. A concrete-filled steel tubular (CFST) column is formed by filling a steel tube with concrete. It is well known that concrete- filled steel tubular (CFST) columns are currently being used in the construction of buildings, due to their excellent static and earthquake-resistant properties, such as high strength, high ductility, large energy absorption capacity, bending stiffness etc. The external strengthening of using basalt fiber reinforced concrete material is emerging as a new trend in enhancing the structural performance concrete filled steel tubular members to counteract the drawbacks of the past rehabilitation work. In this project we are going to study about strength of the steel and concrete by doing compression strength, flexural strength, push out and uniaxial compression test. The tests are carried out with the help of universal testing machine. The readings are recorded and graphs are plotted.
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6

Singh, Hazoor, Buta Singh Sidhu, and Satya Prakash. "Performance of HVOF Sprayed NiCr and Stellite-6 Coatings under Pin on Disc Wear Testing." Materials Science Forum 701 (October 2011): 21–29. http://dx.doi.org/10.4028/www.scientific.net/msf.701.21.

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Анотація:
Wear behavior of the HVOF deposited NiCr and Stellite-6, coatings on Fe-base alloy steel were evaluated by the pin-on-disc techniques. The coatings were significantly harder and less porous. SEM/EDAX and XRD techniques were used to analyse the worn out surface and wear debris. The Fe2O3 was identified as the major phase in the wear debris. The wear mechanism is mild adhesive wear in nature. The coatings protected the substrate steels against the adhesive wear significantly.
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7

Petrakou, Z. "Cold Working Degree Determination in Low Carbon Steel with Barkhausen Noise Analysis." Key Engineering Materials 495 (November 2011): 198–200. http://dx.doi.org/10.4028/www.scientific.net/kem.495.198.

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Анотація:
Mild steel is one of the most commonly used materials in both industry, construction and other commercial –less or more elaborated- applications, and therefore the need of the appliance of an efficient and precise non-destructive testing method is requisite and mandatory. Here we report the experimental study of one of the most significant properties of mild steel, that of hardness, that can substantially reveal important facts such as the grade of deformation and work-hardening of steel, with the use of Barkhausen Noise Analysis. We also studied how the magnetic and mechanical properties of this specific metallic material can be successfully correlated.
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8

Chaturvedi, M., S. Arungalai Vendan, R. Sharanabasavaraj, V. Kachinsky, and K. A. Ramesh Kumar. "Non-Destructive Testing of Magnetically Impelled Arc Butt Welding of Mild Steel Tubes." Annals of Dunarea de Jos University of Galati. Fascicle XII, Welding Equipment and Technology 33 (December 15, 2022): 35–46. http://dx.doi.org/10.35219/awet.2022.03.

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This paper presents the results of Non-Destructive Testing on Magnetically Impelled Arc Butt (MIAB) welded mild steel tubes of 27mm OD and 1.5mm thickness. As part of this work, the tests covered were radiography, liquid penetrant, and magnetic particle testing. The testing results indicate that porosity, penetration levels and the defects found are within acceptable limits as per standard. For this experimental work, the selection of parameters was based on trial and error adopted in preliminary trials. The irregularities found in the non-destructive testing samples have enabled the fine-tuning of process parameters. The optimum values of hydraulic pressure, weld time and weld current are assessed to be 30-35bar, 5.5s and 150 A, respectively 270 A for this dimension of tubes. This work focuses on the experimental observations of MIAB welding and Non-destructive testing results for MS tubes of the selected dimension, which have not been reported in the existing literature. The achieved input forms the database for the parametric study of this process. The optimum parametric ranges obtained from the results can be extrapolated to be used for joining tubes of different dimensions and can also form the inputs for reaching parameter and response dependency equations.
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9

Iqbal, Amjad, Ayesha Iqbal, Grzegorz Moskal, Muhammad Yasir, Abdullah Al-Mansour, Mohammad Khan, Shamshad Alam, Muhammad Shahbaz, Adeel Zia, and Ahsan Ejaz. "Long-Term Potentiodynamic Testing and Tribometric Properties of Amorphous Alloy Coatings under Saline Environment." Molecules 27, no. 4 (February 19, 2022): 1421. http://dx.doi.org/10.3390/molecules27041421.

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Protective coatings for harsh environments are always welcome, but they must overcome profound challenges, including corrosion and wear resistance. The purpose of this study is to look into the long-term potentiodynamic polarization measurements and dry tribometric behavior of plasma-sprayed amorphous coatings on AISI 1035 mild steel. To investigate the impact of unique active polarization potentials on the electrochemical studies of the iron-based amorphous layer, which compares favorably to AISI 1035 mild steel, the active potential polarization curve and friction coefficient tests were performed. Scanning electron microscopy (SEM) and energy dispersive x-ray (EDX) analyses were used to investigate the coating’s corrosion behavior. Their mechanical (Tribometric tests at higher sliding speeds) and chemical properties (electrochemical potentiodynamic polarization investigations) have also been thoroughly investigated. There is enough validation that these protective coatings can be used in hostile environments. The effects of long-term corrosion for 24 and 48 h were thoroughly examined. Tribometric examinations revealed that amorphous layers are highly resistant under dry conditions, as they offered a very low and stable friction coefficient less than 4 μ with micro Vickers hardness 1140 ± 22.14 HV, which is more than twice as compared to mild steel AISI 1035. The corrosion resistance of coatings in 3.5 wt % NaCl solution displays active transition characteristics of activation, passivation, over passivation, and pitting, as shown by the potentiodynamic polarization curves.
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10

Xuan, L. P., M. A. Anwar, T. Kurniawan, H. M. Ayu, R. Daud, and Y. P. Asmara. "Caffeine as A Natural Corrosion Inhibitor for Mild Steel in Nacl Solution." JOURNAL OF SCIENCE AND APPLIED ENGINEERING 2, no. 2 (November 28, 2019): 63. http://dx.doi.org/10.31328/jsae.v2i2.1186.

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Corrosion inhibitors are substances that added to the environment in small concentration and can effectively reduce the corrosion rate that of a metal surface. Natural inhibitors are one types of inhibitor being researched as it brings less environmental impact on the environment. This research was focused on the application of caffeine as inhibitor for corrosion of mild steel in seawater condition. The objective of this project was to develop the relationship between caffeine concentration on the corrosion of mild carbon steel in both static and moving solution contained 3.5-wt% NaCl. Three types of solution were prepared, which are NaCl without addition of caffeine, NaCl with 1-wt% of caffeine and NaCl with 2-wt% of caffeine. Corrosion testing was carried out by weight loss measurement. The microstructures of corroded mild steel specimens were observed under optical microscope. The experimental results indicated that by adding caffeine into the environment medium, weight loss of mild steel specimen was reduced. The corrosion rate of specimens was decreased when more caffeine was added to the environment. From optical microscopic observation, caffeine performed its inhibition effect likely by forming a protective layer which acts as barrier to prevent further corrosion of mild steel in NaCl solution.
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Дисертації з теми "Mild steel Testing"

1

Kerr, C. "Electrochemical porosity testing of electroless nickel coatings on mild steel substrates." Thesis, University of Portsmouth, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484205.

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2

Pfeifer, Thomas A. "Experimental tests of a seismic retrofit components on a full-scale model of a typical steel bridge in Mid-America." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/20866.

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3

"Nondestructive inspection of mild steel and nickel by magnetic methods =: 磁性方法用於低碳鋼和鎳的無損測試". Chinese University of Hong Kong, 1996. http://library.cuhk.edu.hk/record=b5888951.

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Анотація:
by Yu, Chak Chung.
Thesis (M.Phil.)--Chinese University of Hong Kong, 1996.
Includes bibliographical references (leaves 129-133).
by Yu, Chak Chung.
PREFACE --- p.i
ACKNOWLEDGMENT --- p.iv
ABSTRACT --- p.v
Chapter 1 --- INTRODUCTION --- p.1
Chapter 1.1 --- Barkhausen effect --- p.2
Chapter 1.2 --- Magnetoacoustic emission --- p.4
Chapter 1.3 --- Methods of measurements --- p.5
Chapter 1.3.1 --- Magnetization of a sample --- p.6
Chapter 1.3.2 --- Signal detection --- p.8
Chapter 1.3.3 --- Signal processing --- p.9
Figures for chapter1 --- p.11
References --- p.14
Chapter 2 --- MAGNETIC PHENOMENA AND THEORIES --- p.17
Chapter 2.1 --- Magnetostriction --- p.17
Chapter 2.1.1 --- Spontaneous magnetostriction --- p.18
Chapter 2.1.2 --- Saturation magnetostriction --- p.19
Chapter 2.1.3 --- Field induced magnetostriction --- p.20
Chapter 2.1.4 --- Magnetostriction at an angle θ to the magnetic field --- p.21
Figures for section 21 --- p.24
Chapter 2.2 --- Domain theory --- p.26
Chapter 2.2.1 --- Magnetic domains --- p.26
Chapter 2.2.2 --- Magnetostatic energy --- p.27
Chapter 2.2.3 --- Magnetization process --- p.29
Figures for section 22 --- p.30
Chapter 2.3 --- Domain walls and domain processes --- p.33
Chapter 2.3.1 --- Properties of domain walls --- p.33
Chapter 2.3.2 --- "180° and non-180° domain walls, and closure domains" --- p.34
Chapter 2.3.3 --- Domain wall motion --- p.35
Chapter 2.3.4 --- Reversible and irreversible domain processes --- p.36
Chapter 2.3.5 --- Barkhausen emission and magnetoacoustic emission --- p.38
Figures for section 23 --- p.39
Chapter 2.4 --- Hindrances to wall motion --- p.43
Chapter 2.4.1 --- Residual stress --- p.43
Chapter 2.4.1.1 --- Dislocation --- p.44
Chapter 2.4.1.2 --- Magnetostriction --- p.45
Chapter 2.4.1.3 --- Plastic deformation --- p.46
Chapter 2.4.2 --- Inclusions --- p.47
Chapter 2.4.3 --- "Domain nucleation, annihilation, and wall motion" --- p.48
Figures for section 24 --- p.50
References --- p.55
Chapter 3 --- MEASUREMENT OF BARKHAUSEN EMISSION AND MAGNETOACOUSTIC EMISSION FROM A FRACTURED STEEL BAR --- p.57
Chapter 3.1 --- Introduction --- p.57
Chapter 3.2 --- Experiments --- p.58
Chapter 3.3 --- Results and discussions --- p.60
Chapter 3.3.1 --- BE and MAE profiles --- p.60
Chapter 3.3.2 --- Defects --- p.61
Chapter 3.3.3 --- Elongated grains --- p.62
Chapter 3.3.4 --- Effect of annealing --- p.63
Chapter 3.4 --- Conclusions --- p.64
Figures and table for chapter3 --- p.66
References --- p.70
Chapter 4 --- NONDESTRUCTIVE INSPECTION OF A FRACTURED NICKEL BAR BY BARKHAUSEN AND MAGNETOACOUSTIC EMISSIONS --- p.71
Chapter 4.1 --- Introduction --- p.71
Chapter 4.2 --- Experiments --- p.72
Chapter 4.3 --- Results --- p.73
Chapter 4.4 --- Discussions --- p.74
Chapter 4.4.1 --- Barkhausen emission --- p.74
Chapter 4.4.2 --- Magnetoacoustic emission --- p.75
Chapter 4.4.3 --- Comparison of nickel and mild steel --- p.77
Chapter 4.5 --- Conclusions --- p.78
Figures and table for chapter4 --- p.81
References --- p.83
Chapter 5 --- DETERMINATION OF THE ROLLING DIRECTION OF ELECTROLYTIC ZINC-COATED STEEL PLATE BY BARKHAUSEN EMISSION --- p.84
Chapter 5.1 --- Introduction --- p.84
Chapter 5.2 --- Experiments --- p.85
Chapter 5.3 --- Results --- p.86
Chapter 5.4 --- Discussions --- p.87
Chapter 5.4.1 --- BE profiles 、 --- p.87
Chapter 5.4.2 --- Effects of hardness and defects --- p.89
Chapter 5.5 --- Conclusions --- p.90
Figures for chapter5 --- p.91
References --- p.97
Chapter 6 --- MAGNETIC MEASUREMENTS MADE ON A NICKEL PLATE WITH HIDDEN HOLE --- p.98
Chapter 6.1 --- Introduction --- p.98
Chapter 6.2 --- Experiments --- p.99
Chapter 6.3 --- Results and discussions --- p.100
Chapter 6.3.1 --- Barkhausen emission --- p.100
Chapter 6.3.2 --- Magnetoacoustic emission --- p.102
Chapter 6.4 --- Conclusions --- p.103
Figures for chapter6 --- p.105
Chapter 7 --- CONCLUSIONS AND SUGGESTIONS FOR FURTHER STUDIES --- p.114
APPENDIX --- p.118
Chapter A1 --- Experimental setup for BE measurement --- p.118
Chapter A2 --- Experimental setup for MAE measurement --- p.119
Chapter A3 --- Specifications and models of the equipment used in the experiments --- p.120
Chapter A4 --- List of figures --- p.121
BIBLIOGRAPHY --- p.129
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"effects of plastic deformation on Barkhausen emission and magnetoacoustic emission in mild steel and nickel bars =: 鋼和鎳試樣的塑性變形對巴克豪森發射及磁聲發射的影響". 1997. http://library.cuhk.edu.hk/record=b5889337.

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Анотація:
by Ng, Hiu Tung.
Thesis (M.Phil.)--Chinese University of Hong Kong, 1997.
Includes bibliographical references (leaves 121-123).
by Ng, Hiu Tung.
Acknowledgement --- p.i
Abstract --- p.ii
Table of Contents --- p.iv
List of Figures --- p.viii
List of Tables --- p.xi
Chapter Chapter One --- Introduction --- p.1
Chapter 1.1 --- Non-destructive testing techniques --- p.2
Chapter 1.1.1 --- Liquid penetration technique --- p.2
Chapter 1.1.2 --- Electrical methods (Eddy current testing) --- p.3
Chapter 1.1.3 --- Ultrasonic testing --- p.4
Chapter 1.1.4 --- Radiography --- p.5
Chapter 1.1.5 --- Magnetic methods --- p.6
Chapter 1.2 --- The development of Barkhausen and magnetoacoustic emissions --- p.7
Chapter 1.2.1 --- Barkhausen emission --- p.7
Chapter 1.2.2 --- Magnetoacoustic emission --- p.8
Chapter 1.3 --- The advantages of using Barkhausen and magnetoacoustic emission over the other nondestructive techniques --- p.10
Chapter Chapter Two --- Fundamental concept in ferromagnetic materials --- p.12
Chapter 2.1 --- Ferromagnetism --- p.12
Chapter 2.1.1 --- Curie point --- p.13
Chapter 2.1.2 --- Hysteresis loop --- p.14
Chapter 2.2 --- Magnetic domains --- p.17
Chapter 2.2.1 --- Magneto static energy --- p.17
Chapter 2.2.2 --- Structure of domain wall --- p.19
Chapter 2.2.3 --- Domain wall motion --- p.21
Chapter 2.2.4 --- Domain nucleation --- p.22
Chapter 2.3 --- Magnetostriction --- p.28
Chapter 2.3.1 --- Spontaneous magnetostriction --- p.28
Chapter 2.3.2 --- Saturation magnetostriction --- p.29
Chapter 2.3.3 --- Field-induced magnetostriction --- p.29
Chapter 2.3.4 --- Magnetostriction of polycrystalline --- p.30
Chapter 2.4 --- Effect of stress on magnetic properties --- p.36
Chapter 2.4.1 --- Stress --- p.36
Chapter 2.4.2 --- Effect of stress on the magnetization --- p.37
Chapter 2.4.3 --- Effect of stress on the magnetostriction --- p.38
Chapter 2.5 --- Eddy current shielding --- p.41
Chapter Chapter Three --- Barkhausen emission and magnetoacoustic emission --- p.42
Chapter 3.1 --- Barkhausen emission --- p.42
Chapter 3.1.1 --- The wall potential energy model of Barkhausen emission --- p.43
Chapter 3.1.2 --- Typical BE profiles --- p.45
Chapter 3.2 --- Magnetoacoustic emission --- p.48
Chapter 3.2.1 --- Magnetoacoustic emission model --- p.48
Chapter 3.2.2 --- Typical MAE profiles --- p.50
Chapter Chapter Four --- Instrumentation --- p.52
Chapter 4.1 --- Introduction --- p.52
Chapter 4.2 --- Experimental setup for Barkhausen emission --- p.53
Chapter 4.3 --- Experimental setup for magnetoacoustic emission --- p.56
Chapter 4.4 --- Specimen treatment --- p.58
Chapter 4.4.1 --- Furnace --- p.58
Chapter 4.4.2 --- Instron loading machine --- p.60
Chapter 4.4.3 --- Optical microscopy --- p.60
Chapter 4.4.4 --- Vicker's hardness tester --- p.61
Chapter Chapter Five --- Effect of field frequency and strength on Barkhausen emission in mild steel and nickel --- p.66
Chapter 5.1 --- Introduction --- p.66
Chapter 5.2 --- Experiments --- p.67
Chapter 5.3 --- Results and discussions --- p.68
Chapter 5.4 --- Conclusions --- p.76
Chapter Chapter Six --- Effect of residual stress on Barkhausen and magnetoacoustic emissions in steel bar --- p.77
Chapter 6.1 --- Introduction --- p.77
Chapter 6.2 --- Experiments --- p.81
Chapter 6.3 --- Results and discussions --- p.84
Chapter 6.3.1 --- BE profiles --- p.84
Chapter 6.3.2 --- MAE profiles --- p.85
Chapter 6.3.3 --- Optical microscopy and hardness measurements --- p.85
Chapter 6.4 --- Conclusions --- p.92
Chapter Chapter Seven --- Effect of residual stress on Barkhausen and magnetoacoustic emissions in a nickel bar --- p.93
Chapter 7.1 --- Introduction --- p.93
Chapter 7.2 --- Experiments --- p.96
Chapter 7.3 --- Results and discussions --- p.97
Chapter 7.3.1 --- Hardness and optical microscopy measurement --- p.97
Chapter 7.3.2 --- BE profiles --- p.98
Chapter 7.3.3 --- MAE profiles --- p.99
Chapter 7.4 --- Comparison of nickel and mild steel --- p.106
Chapter 7.5 --- Conclusions --- p.108
Chapter Chapter Eight --- Effect of dynamic stress on Barkhausen emission in mild steel --- p.109
Chapter 8.1 --- Introduction --- p.109
Chapter 8.2 --- Experiments --- p.110
Chapter 8.3 --- Results and discussions --- p.112
Chapter 8.4 --- Conclusions --- p.118
Chapter Chapter Nine --- Conclusions --- p.119
References --- p.121
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Книги з теми "Mild steel Testing"

1

Kerr, C. Electrochemical porosity testing of electroless nickel coatings on mild steel substrates. Portsmouth: University of Portsmouth, School of Pharmacy, Biomedical and Physical Sciences, 1997.

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Частини книг з теми "Mild steel Testing"

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Rani, Anju, Anshul Sharma, and Ravibabu Mulaveesala. "Barker-Coded Thermal Wave Imaging for Testing and Evaluation of Mild Steel." In Lecture Notes in Mechanical Engineering, 73–82. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9093-8_7.

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Rifai, Damhuji, Abdul Rahim Pazikadin, Kharudin Ali, Moneer A. Faraj, Noraznafulsima Khamsah, and Ahmed N. Abdalla. "Fuzzy Logic Error Compensation Scheme for Eddy Current Testing Measurement on Mild Steel Superficial Crack." In Proceedings of the 1st International Conference on Electronics, Biomedical Engineering, and Health Informatics, 219–37. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6926-9_20.

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3

Rani, Anju, Vansha Kher, Kirandeep Kaur, and Ravibabu Mulaveesala. "Novel Data Processing Approaches for Testing and Evaluation of Mild Steel Sample Using Frequency-Modulated Thermal Wave Imaging." In Lecture Notes in Mechanical Engineering, 63–71. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9093-8_6.

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4

"CHOICE OF SUITABLE METALS AND PROTECTION METHODS 3.1. Mild steel." In RILEM Technical Recommendations for the testing and use of construction materials, 551. CRC Press, 1994. http://dx.doi.org/10.1201/9781482271362-139.

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Ngah, Norsilawati, Nor Bahiyah Baba, Nor Azinee Said, Mohd Habir Ibrahim, and Na’ain Shari. "Characterisation and Application of Nickel Cubic Boron Nitride Coating via Electroless Nickel Co-Deposition." In Characteristics and Applications of Boron [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105364.

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The chapter describes the characterisation and application of nickel cubic boron nitride (Ni-CBN) coatings using the electroless nickel co-deposition method. Two different types of substrates were used, that is, high-speed steel (HSS) and carbide. The characterisation of Ni-CBN coating was conducted using Field Emission Scanning Electron Microscope (FESEM) JSM-7800F coupled with Energy-Dispersive X-ray (EDX). As for the application, coated end mill cutting tools were inserted into DMU 50 CNC machine to conduct the machining testing. Cutting speed, feed rate, and depth of cut were chosen for the Taguchi L9 3-level factors. Taguchi analysis was employed to determine the optimal parameters for the Ni-CBN (HSS) surface finish. The ANOVA evaluation was used to identify the most significant effect on surface finish parameters. The FESEM images prove that the nano-CBN powders were embedded in the Ni-CBN coatings and are uniformly distributed. The findings show Ni-CBN-coated tool life is 195 minutes compared to the uncoated is 143 minutes. The surface roughness, Ra values using Ni-CBN-coated tools ranges between 0.251 and 0.787 μm, whereas the uncoated tools Ra values between 0.42 and 1.154 μm. It can be concluded that Ni-CBN HSS cutting tools reduce tool wear and extend tool life. The Taguchi optimum machining condition obtained is 1860 RPM spindle speed, 334 mm/min feed rate, and 2 mm depth of cut.
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Тези доповідей конференцій з теми "Mild steel Testing"

1

Shetasandi, C. M., and B. B. Deshmukh. "Parametric analysis of composite material in comparison with mild steel by experimental testing." In Proceedings of the International Conference on Nanotechnology for Better Living. Singapore: Research Publishing Services, 2016. http://dx.doi.org/10.3850/978-981-09-7519-7nbl16-rps-220.

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Mulaveesala, Ravibabu, Geetika Dua, Juned A. Siddiqui, Ghali V. Subbarao, and Amarnath Muniyappa. "A numerical approach for testing and evaluation of mild steel material by thermal wave imaging." In SPIE Sensing Technology + Applications, edited by Sheng-Jen (Tony) Hsieh and Joseph N. Zalameda. SPIE, 2015. http://dx.doi.org/10.1117/12.2176962.

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3

Gawor, S., J. B. Wiskel, D. G. Ivey, J. Liu, and H. Henein. "Time Dependence of Hydrogen Induced Cracking of X70 Pipeline Steel Under Severe and Mild Sour Service Conditions Using Ultrasonic Analysis." In 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9787.

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Abstract A standard NACE hydrogen induced crack test was used to evaluate the resistance of two compositions of X70 steel (X70-X (Ca/S ratio of 2.5) and X70-B (Ca/S ratio of < 0.5)) under severe (pH = 2.7 and 100% H2S) and mild (pH = 5.5 and 100% H2S) sour service conditions. An ultrasonic technique was developed to quantify the severity of hydrogen cracking in both steels as a function of test conditions, steel type and time. In this procedure, a series of local ultrasonic measurements was taken for each test sample to determine a local crack to backwall signal ratio (LCBR). The LCBR values were integrated over the entire sample to give a global crack to backwall ratio (GCBR). A larger GCBR value corresponds to greater hydrogen cracking severity in the sample. Energy dispersive X-ray (EDX) spectroscopy and glancing angle X-ray diffraction (XRD) were used to characterize the surface corrosion products that formed during testing. For severe sour service conditions, the GCBR value reached an asymptotic value of approximately 33% and 47% for X70-X (after 4 days) and X70-B (after 2 days) steels, respectively. For mild sour service conditions, no cracking was observed for testing of less than 16 days. After 32 days, X70-B showed a GCBR of approximately 18%. The onset of cracking of X70-X steel occurred between 32 and 64 days. Samples tested for 64 days showed a GCBR of 30% and 16% for X70-X and X70-B, respectively. Glancing XRD measurements showed the presence of surface FeS on both steels tested under mild sour service. Quantitative XRD (QXRD) analysis was used to obtain the surface coverage of FeS as a function of test time. EDX mapping confirmed the presence of a high sulfur content over a significant fraction of the surface. XRD measurements of X70-B steel under severe sour service after 8 days did not show a significant amount of FeS. The surface FeS is believed to alter hydrogen ingress into the steel, making it difficult to directly compare measured GCBR values obtained under mild and severe sour service.
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4

Rani, Anju, and Ravibabu Mulaveesala. "Matched Filtering with Gaussian Windowed Frequency Modulated Thermal Wave Imaging for Non-destructive Testing and Evaluation of Mild Steel Sample." In 2021 IEEE 4th International Conference on Computing, Power and Communication Technologies (GUCON). IEEE, 2021. http://dx.doi.org/10.1109/gucon50781.2021.9573879.

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Schaeffer, J. Ben, Brad Barnhart, and Teresa Melfi. "A Statistical Study of Mechanical Properties From Mild Steel Welds Deposited via Gas Metal Arc Additive Manufacturing (GMAAM)." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84056.

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Abstract Welding has been used for decades to create materials from weld metal that were machined to form components and used as a substitute for long lead-time castings, plate and forgings. Past terms like “shapewelding” or “shape melting” have been replaced with “additive manufacturing” to describe the process, but there is debate whether it should be treated as an additive/subtractive manufacturing process or a welding process followed by machining. Welding procedure qualifications verify weld metal properties. The properties of qualified welds are quite predictable when the welding parameters (variables) are controlled. The range of variables to be controlled and the allowable limits vary based on the risk tolerance of the application. These variable qualification limits are covered in various welding qualification codes and standards. In the past, code rules for weld metal buildup were used to qualify additive weld metal, but tighter controls are demanded today. Because of this, ASME Section IX developed and published rules in Code Case 3020 [1] for welding procedure qualifications that are specific to gas metal arc additive manufacturing (GMAAM). The Code Case 3020 qualification rules require testing weld metal properties at the highest and lowest cooling rates to be used in production. Code Case 3020 rules also require testing the thinnest wall section and a thick section for each of those cooling rates. The rules also require that all of the essential and supplementary essential variables used for weld metal joining and operator qualification in ASME Section IX continue to be followed. An ASME supported research project was launched to validate these rules. The project included a design of experiments (DOE), created by subject matter experts and vetted by an advisory committee consisting of designers, fabricators, consultants and metallurgists. Approximately two tons of weld metal was deposited using 24 different sets of welding parameter input configurations as set out by the DOE. Over 300 tensile specimens and over 500 Charpy V-notch (CVN) specimens were taken from various orientations and tested to characterize the weld metal properties. The data was analyzed to determine if the variables and interactions provided statistically significant prediction of the weld metal properties. The degree of isotropy and the extent to which manipulated variables predict weld metal properties are key findings. This paper examines those results, and discusses the relationships as they relate to new and existing code rules.
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Lawver, Darell, Raymond Daddazio, David Vaughan, Michael Stanley, and Howard Levine. "Response of AISC Steel Column Sections to Blast Loading." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-1827.

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One dozen American Institute of Steel Construction (AISC) W14 steel columns were tested at the Energetic Materials Research and Testing Center (EMRTC), New Mexico Institute of Mining and Technology in Socorro, New Mexico with loading from typical size vehicle bomb threats at very close to moderately close standoffs. Pretest predictions of structural response were performed using standard SDOF methods and the Weidlinger Associates, Inc. (WAI) FLEX finite element code. Loads acting on the columns were determined from the U. S. Army developed CONWEP code using the Kingery-Bulmash equations for the pretest predictions. Seven tests included individual columns with axial loading and blast loading applied simulataneously. One test included 5 columns built into a frame with moment connections at the top of the columns and base plate connections at the base of the columns. The columns were instrumented with accelerometers and pressure transducers. The tests were designed to produce various levels of damage from mild to severe. This paper will compare the pretest and posttest predictions using both the SDOF and FLEX finite element methods with the actual test results. The comparison between actual loading and CONWEP loading will also be discussed. Conclusions will be drawn with regard to the use of CONWEP loading for this type of threat at various standoffs. Also, the use of SDOF and FLEX finite element methods to predict the response of AISC W14 steel columns will be compared.
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George, Tommy J., M. H. Herman Shen, Theodore Nicholas, and Charles J. Cross. "A New Multiaxial Fatigue Testing Method for Variable-Amplitude Loading and Stress Ratio." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38512.

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A new vibration-based multiaxial fatigue testing methodology for assessing high cycle turbine engine material fatigue strength at various stress ratios is presented. The idea is to accumulate fatigue energy on a base-excited plate specimen at high frequency resonant modes and to complete a fatigue test in a much more efficient way at very low cost. The methodology consists of: (1) a topological design procedure, incorporating a finite element model, to characterize the shape of the specimens for ensuring the required stress state/pattern, (2) a vibration feedback empirical procedure for achieving the high cycle fatigue experiments with variable-amplitude loading, and finally (3) a yielding procedure for achieving various uniaxial stress ratios. The performance of the methodology is demonstrated by the experimental results from mild steel, 6061-T6 aluminum, and Ti-6Al-4V plate specimens subjected to fully reversed bending for both uniaxial and biaxial stress states. Results are compared with those produced using traditional fatigue test machines.
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8

Wu, Tsu-te, and Daniel Leduc. "Dynamic Impact Analysis of a Type A Fissile Package Consisting of Thin Gage Mild Carbon Steel Components Arranged for High Energy Absorption." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1610.

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The Savannah River Site (SRS) has a need to transport Highly Enriched Uranium (HEU) within site boundaries. A Type A fissile package design similar to the General Electric (GE) RA-3 and the Westinghouse PATRIOT packages has been selected for these shipments. This package design involves the use of light gage steel shapes, oriented to absorb energy from deformation and friction bearing contact surfaces, in between a thin gage mild carbon steel inner and outer shell. The RA-3 and the PATRIOT2 were both qualified by testing rather than analysis. To validate the SRS specific design, an advanced ABAQUS model of the package has been created to subject the package to dynamic impact analyses. The model was created to demonstrate the level of protection of the fuel assemblies and evaluate the impact absorbing capabilities of the package design concept.
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9

Blachut, J. "Collapse Tests on Externally Pressurised Toroids." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1223.

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The paper discusses the load carrying capacity of toroidal shells with closed circular cross-section and loaded by static external pressure. Details about the manufacturing, pre-experiment measurements and testing of three, nominally different, steel toroids are provided. Two of them were manufactured from mild steel by spinning two halves and then welding them around the inner and outer equatorial perimeters. The third one has been assembled by welding four 90 deg, stainless elbows. The outer diameter of these models was about 300 mm and the wall thickness varied from 2.0 mm to 3.0 mm. The hoop radius-to-thickness ratio, r/t, varied from about 15 to 30. The experimental collapse pressures were in the range from 4 MPa to 8 MPa. Comparisons with numerical results are also provided.
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10

Tomita, T., K. Okita, Y. Taratani, and Y. Harada. "Improvement of Wear Property of NbC/High Cr-High Ni Overlay Alloy Coating Formed by Plasma Transferred Arc Welding Process." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p0253.

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Abstract This paper presents the results of a study showing how isothermal aging affects the wear properties of Cr-Ni overlay alloy coatings with dispersed NbC particles. High Cr-high Ni coatings, with and without niobium carbides, were deposited on mild steel substrates via plasma transferred arc welding then age-hardened at temperatures from 773 to 1023 K. The precipitation behavior and wear properties of the coating samples were examined using Vickers hardness testing, SEM, TEM, EDX, XRD, and Ohgoshi wear testing. The results showed that isothermal aging significantly improved the hardness and wear resistance of the NbC-dispersed alloy but had little effect on the NbC-free samples. The difference in precipitation behaviors is probably due to the presence of niobium atoms in the alloy matrix, resulting in a continuous precipitation of α' phase.
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Звіти організацій з теми "Mild steel Testing"

1

Showalter, Dwight, William Gooch, Matthew Burkins, Jonathan Montgomery, and Richard Squillacioti. Development and Ballistic Testing of a New Class of Auto-Tempered High-Hard Steels Under Military Specification MIL-DTL-46100E. Fort Belvoir, VA: Defense Technical Information Center, September 2009. http://dx.doi.org/10.21236/ada516824.

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2

EXPERIMENTAL STUDY OF HYSTERETIC BEHAVIOR OF RESILIENT PREFABRICATED STEEL FRAMES WITH AND WITHOUT INTERMEDIATE COLUMNS. The Hong Kong Institute of Steel Construction, September 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.9.

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The research innovatively proposed a seismic resilient structural system including a prefabricated self-centering steel frame (PSC) and an intermediate column with a friction damper (CD). The CD, installed in the mid-span beam of the PSC, was expected to provide additional stiffness and damping, The seismic performance of the newly-developed resilient structural system thus can be greatly improved. This paper stated the experimental study on the hysteretic behaviors of the newly-developed system. Comparative pseudo-dynamic tests were conducted for the validation where two systems, a PSC with CD and a PSC without CD, were tested respectively. The testing results indicated that a PSC with CD has better seismic performance for long-span structures under catastrophic earthquakes’ attack. The CD overall provided additional stiffness for requirements of earthquake fortification criteria. The friction damper, part of CD greatly improves the damping effect together with the energy-dissipation bolts. The small residual rotations of beam-column connections on the PSC subsystem provides a satisfactory self-centering mechanism. Moreover, the steel strands of the resilient structural system can maintain the elasticity even after the highest-intensity earthquake. In turn, the satisfactory seismic performance of the proposed PSC with CD structural system validated. This research developed a series of design formula for the T-plate and L-plate friction damper in the CD to guarantee the designed seismic performance of the proposed seismic resilient structural system. The theoretical hysteresis curve of the system was proposed for the future design specification.
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