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Статті в журналах з теми "Warm laser shock peeing"
Tani, G., L. Orazi, A. Fortunato, A. Ascari, and G. Campana. "Warm Laser Shock Peening: New developments and process optimization." CIRP Annals 60, no. 1 (2011): 219–22. http://dx.doi.org/10.1016/j.cirp.2011.03.115.
Повний текст джерелаLiao, Yiliang, Chang Ye, and Gary J. Cheng. "[INVITED] A review: Warm laser shock peening and related laser processing technique." Optics & Laser Technology 78 (April 2016): 15–24. http://dx.doi.org/10.1016/j.optlastec.2015.09.014.
Повний текст джерелаLu, Ying, Yuling Yang, Jibin Zhao, Yuqi Yang, Hongchao Qiao, Xianliang Hu, Jiajun Wu, and Boyu Sun. "Impact on Mechanical Properties and Microstructural Response of Nickel-Based Superalloy GH4169 Subjected to Warm Laser Shock Peening." Materials 13, no. 22 (November 16, 2020): 5172. http://dx.doi.org/10.3390/ma13225172.
Повний текст джерелаSu, Chun, Jianzhong Zhou, Xiankai Meng, and Jie Sheng. "Comparison of warm laser shock peening and laser shock peening techniques in lengthening the fatigue life of welded joints made of aluminum alloy." International Journal of Modern Physics B 31, no. 16-19 (July 26, 2017): 1744045. http://dx.doi.org/10.1142/s0217979217440453.
Повний текст джерелаAltenberger, I. "Alternative Mechanical Surface Treatments for Fatigue Strength Enhancement." Materials Science Forum 490-491 (July 2005): 328–33. http://dx.doi.org/10.4028/www.scientific.net/msf.490-491.328.
Повний текст джерелаLiao, Yiliang, Chang Ye, Bong-Joong Kim, Sergey Suslov, Eric A. Stach, and Gary J. Cheng. "Nucleation of highly dense nanoscale precipitates based on warm laser shock peening." Journal of Applied Physics 108, no. 6 (September 15, 2010): 063518. http://dx.doi.org/10.1063/1.3481858.
Повний текст джерелаZhang Qinglai, 张青来, 张乔 Zhang Qiao, 张冰昕 Zhang Bingxin, 李兴成 Li Xingcheng, and 刘惠 Liu Hui. "Study on Characteristic of Warm Laser Shock Peening of AZ80-T6 Magnesium Alloy." Chinese Journal of Lasers 42, no. 10 (2015): 1006002. http://dx.doi.org/10.3788/cjl201542.1006002.
Повний текст джерелаHu, Taiyou, Songxia Li, Hongchao Qiao, Ying Lu, Boyu Sun, and Jiajun Wu. "Effect of Warm Laser Shock Peening on Microstructure and Properties of GH4169 Superalloy." IOP Conference Series: Materials Science and Engineering 423 (November 6, 2018): 012054. http://dx.doi.org/10.1088/1757-899x/423/1/012054.
Повний текст джерелаZhang Qinglai, 张青来, 刘惠 Liu Hui, 张冰昕 Zhang Bingxin, 李兴成 Li Xingcheng, 王荣 Wang Rong, and 邵伟 Shao Wei. "Warm Laser Shock Peening and Low Cycle Fatigue Behavior of Extruded AZ80-T6 Magnesium Alloy." Chinese Journal of Lasers 42, no. 11 (2015): 1103004. http://dx.doi.org/10.3788/cjl201542.1103004.
Повний текст джерелаLu, Ying, Jibin Zhao, Hongchao Qiao, Taiyou Hu, Boyu Sun, and Jiajun Wu. "A study on the surface morphology evolution of the GH4619 using warm laser shock peening." AIP Advances 9, no. 8 (August 2019): 085030. http://dx.doi.org/10.1063/1.5082755.
Повний текст джерелаДисертації з теми "Warm laser shock peeing"
Bolis, Riccardo Maria. "Investigations of high pressure phase diagrams of MgO-SiO2 systems with laser shock compression." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX056/document.
Повний текст джерелаTwo decades of exoplanet discoveries brought the physics of planetary interiors among the topics of broad and current interests. To advance in this field, one of the key ingredient is the knowledge of the equation of states and physical properties of planetary constituents. At the extreme conditions of planetary interiors ( 1-100 Mbar, 10^3-10^4 K), matter lies in the Warm Dense Matter (WDM) regime and theoretical descriptions are not trivial. Important progress have been done with ab-initio calculations based on differential functional theories, but such calculations need to be validated by experiments.In this thesis, we experimentally characterized phase diagrams and physical properties of MgO, MgSiO3 and Mg2SiO4 at conditions relevant for planetary science (0.5-10 Mbar). The studied compounds are the Mg end members of (Fe, Mg)SiO3 and (Fe, Mg)2SiO4 that are among the most abundant components of Earth’s mantle and are also thought to be abundant in Super-Earth’s mantle and giant planet cores. To bring these materials to planetary interior conditions we performed laser shock compression experiments at three high power laser facilities: LULI2000 (France), GEKKOXII (Japan), MEC at LCLS(USA). At LULI2000 and GEKKOXII we investigated the liquid properties and melting of MgO, MgSiO3 and Mg2SiO4 using decaying shocks coupled to visible diagnostics. At LULI2000 we studied with XANES spectroscopy MgO in the WDM regime highlighting its metallisation mechanism and structural properties in the liquid phase. Finally, at the MEC end station of LCLS, we used X-ray diffraction to measure shock induced structural changes on MgSiO3 and Mg2SiO4 in the solid region of their phase diagrams. Altogether these works, obtained with different diagnostics, imply a revision of the phase diagrams of the studied compounds. In particular we determined a new experimental melting point for MgO (at 470 ± 40 GPa and 9860 ± 810 K), we ruled out the occurrence of an MgSiO3 liquid-liquid transition (supposed to occur at ~ 400 GPa along the Hugoniot) and we evidenced for the first time the occurrence of an amorphous phase along the Forsterite (Mg2SiO4 crystal) Hugoniot (at ~50 GPa)
Guarguaglini, Marco. "Laser-driven shock compression of liquid mixtures and silica up to extreme thermodynamic conditions of interest for planetary interior models." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX075/document.
Повний текст джерелаCharacterising the behaviour of planetary interiors’ components at extreme conditions (megabar pressures, temperatures of a few thousand Kelvin) is essential to build reliable models describing the evolution and structure of planets. In this thesis, we investigated various components on a wide set of conditions using laser-driven shock compression techniques at the LULI2000 (France) and GEKKO XII (Japan) facilities.Single decaying shocks were employed to study high-pressure / high-temperature states. To reach moderate-temperature conditions, closer to planetary interior profiles, we employed static and dynamic pre-compression techniques coupling Diamond Anvil Cells to shock compression and generating double shocks, respectively.We studied the equation of state of water-ethanol-ammonia mixtures and of pure liquid water and ammonia, of interest for icy giant structure models. Pure ammonia measurements have been particularly challenging due to cell design complexity in reason of its reactivity; we provide the first data obtained with laser shocks, in a pressure domain up to now unexplored. Mixtures data are in agreement with recent ab initio calculations based on the linear mixing approximation.We measured the optical reflectivity of liquid mixtures and silica, a key component of rocky planets’ interiors. From reflectivity data we estimated the electrical conductivity of such components — a crucial parameter for modelling the generation of planetary magnetic fields in the interiors via a dynamo mechanism.Water, ammonia, and water-ethanol-ammonia mixtures exhibit different reflectivity (hence conductivity) behaviours as a function of pressure and temperature. This suggests that pure water should not be used in dynamo models as representative of the icy mixtures.Moreover, we provide the first experimental confirmation of recent ab initio studies showing that the conductivity of silica along isothermal lines is not monotonic at moderate temperatures. Our data provide experimental support for the calculations predicting a dynamo action to occur in super-Earths’ and early Earth’s magma oceans
(6417158), Gaurav Vilas Inamke. "THE INVESTIGATION OF WARM LASER SHOCK PEENING AS A POST PROCESSING TECHNIQUE TO IMPROVE JOINT STRENGTH OF LASER WELDED MATERIALS." Thesis, 2019.
Знайти повний текст джерелаThis study is concerned with investigating the effects of warm laser shock peening (wLSP) on the enhancement of mechanical performance of laser welded joints. A 3-D finite element model is presented which predicts the surface indentation geometry and in-depth compressive residual stresses generated by wLSP. To define the LSP pressure on the surface of the material, a 1-D confined plasma model is implemented to predict plasma pressure generated by laser-coating interaction in an oil confinement regime. Residual stresses predicted by the finite element model for wLSP reveal higher magnitude and depth of compressive residual stresses than room temperature laser shock peening. A novel dual laser wLSP experimental setup is developed for simultaneous heating of the sample, to a prescribed temperature, and to perform wLSP. The heating laser power is tuned to achieve a predefined temperature in the material through predictive analysis with a 3-D transient laser heating model.
Laser welded joints of AA6061-T6 and TZM alloy in bead-on-plate (BOP) and overlap configurations, created by laser welding with a high power fiber laser, were post processed with wLSP. To evaluate the strength of the welded joints pre- and post-processing, tensile testing and tensile-shear testing were carried out. To understand the failure modes in tensile-shear testing of the samples, a 3-D finite element model of the welded joint was developed with weld regions’ material strength properties defined through microhardness testing. The stress concentration regions predicted by the finite element model clearly explain the failure regions in the experimental tensile testing analysis. The tensile tests and tensile-shear tests carried out on wLSP processed AA6061-T6 samples demonstrate an enhancement in the joint strength by about 20% and ductility improvement of about 33% over as-welded samples. The BOP welds of TZM alloy processed with wLSP demonstrated an enhancement in strength by about 30% and lap welds demonstrated an increase in joint strength by 22%.
Частини книг з теми "Warm laser shock peeing"
Tomar, Krishnpal Singh, Anshu Sahu, Ashish Shukla, and I. A. Palani. "Effect of Laser Shock Peening of WAAM Deposited Ni–Ti Shape Memory Alloy on the Mechanical Property." In Lecture Notes in Mechanical Engineering, 725–32. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0244-4_68.
Повний текст джерелаТези доповідей конференцій з теми "Warm laser shock peeing"
Fortunato, Alessandro, Leonardo Orazi, Gabriele Cuccolini, and Alessandro Ascari. "Laser shock peening and warm laser shock peening: process modeling and pulse shape influence." In SPIE LASE, edited by Friedhelm Dorsch. SPIE, 2013. http://dx.doi.org/10.1117/12.2007393.
Повний текст джерелаYang, Yuqi, Jibin Zhao, Hongchao Qiao, Jiajun Wun, and Xianliang Hu. "The research progress on strengthen property and mechanism of warm laser shock peening." In 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, edited by Yue Yang, Jianqiang Zhu, Weibiao Chen, Pu Wang, Jianrong Qiu, Zhenxi Zhang, and Minlin Zhong. SPIE, 2020. http://dx.doi.org/10.1117/12.2584353.
Повний текст джерелаYe, Chang, and Gary J. Cheng. "Fatigue Performance Improvement by Dynamic Strain Aging and Dynamic Precipitation in Warm Laser Shock Peening of AISI 4140 Steel." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34301.
Повний текст джерелаLiao, Yiliang, Chang Ye, and Gary J. Cheng. "Nucleation of Highly Dense Nanoscale Precipitates Based on an Innovative Process: Warm Laser Shock Peening." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34297.
Повний текст джерелаYe, Chang, Dong Lin, Yiliang Liao, and Gary J. Cheng. "Effect of Warm Laser Shock Peening on the Tensile Strength and Ductility of Aluminum Alloys." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7371.
Повний текст джерелаInogamov, N. A., V. V. Zhakhovsky, and V. A. Khokhlov. "Warm dense matter in extremely small volume - Hydrodynamics of nanofilms triggered by laser irradiation at diffraction limit." In SHOCK COMPRESSION OF CONDENSED MATTER - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. Author(s), 2018. http://dx.doi.org/10.1063/1.5045044.
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