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Determination of mechanical properties of pure zirconium processed by surface severe plastic deformation through nanoindentationYao-Mian Wang,Wei Zhuang,Huan-Ping Yang,Cong-Hui ZhangSchool of Metallurgical Engineering,Xi’an University of Architecture and Technology摘 要:Commercially pure zirconium was processed by the surface mechanical attrition......
at warm temperatures based on the M-K theory. Two different yield criteria of von Mises and Hill’48 were applied in this model. Mechanical properties of AZ31 magnesium alloy used in the prediction... by the type of yield criterion used in the calculation, especially at lower temperatures. Furthermore, a better agreement between the predicted results and experimental data for AZ31 magnesium alloy sheet......
Mechanical properties,microstructure and surface quality of Al-1.2Mg-0.6Si-0.2Cu alloy after solution heat treatmentLi-Zhen Yan1,Yong-An Zhang1,Bai-Qing Xiong1,Xi-Wu Li1,Zhi-Hui Li1,Hong-Wei Liu1,Shu... of Education),Northeastern University摘 要:The effect of solution heat treatment(SHT) on mechanical properties,microstructure and surface quality......
interior region. Increment of dislocation densities and deformation twin formation on the surface also enhanced the yield and ultimate tensile strength of the UNSM-treated specimens. Furthermore...Microstructure and mechanical properties of CoCrFeMnNi high entropy alloy with ultrasonic nanocrystal surface modification processTimothy Alexander Listyawan1,Hyunjong Lee2,Nokeun Park1,3,Unhae Lee41......
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The Study of Low Surface Energy Fluorocarbon Coatings with Fluor Content Being Lower LIU Xiu-sheng1,ZHONG Ping1,GAO Wan-zhen1 (1.Wuhan Research Institute of Materials Protection, Wuhan 430030 ,P. R. China) 摘要:A kind of low surface energy fluorocarbon coatings from the synthesized fluoro-acrylic resin was developed.The molecule orientation principle of nonpolar and polar functional groups......
,以解理断裂面和少量韧窝形貌为特征,说明该区域中裂纹扩展迅速,像静态拉伸断裂一样是在短时间内的瞬间断裂,因此断裂失稳阶段在整个疲劳周期中所占的比例较小. 图4 T6态ZM51镁合金在不同循环应力和循环周次下的疲劳断口全貌 Fig. 4 Overall fatigue fracture surface morphologies of T6 treated ZM51... T6态ZM51镁合金在低应力和高应力条件下疲劳断口的SEM像 Fig. 5 Overall fatigue fracture surface morphologies of T6 treated ZM51 alloys 3 分析与讨论 3.1 T6处理后ED方向拉压不对称性增加的原因 镁合金拉压屈服不对称性是由于在拉伸和压缩过程中合金变形机制不同引起的......
deformation characters by the two different stress path were analyzed. The yield approach index (YAI) was introduced to evaluate the close degree from the yield surface of sample in triaxial stress state... in the fitting test. Key words: rock mechanics; unloading confining pressure rheological tests; yield approach index; unloading stress path 岩石的流变特性是影响水电工程围岩稳定性的重要因素.近年来,许多学者通过室内三轴流变试验研究岩石的流变力学性质,取得了一些成果.而岩体工程......
Characteristics and properties of surface coated nano-TiO2 GAO Jia-cheng(高家诚), ZOU Jian(邹 健), TAN Xiao-wei(谭小伟), WANG Yong(王 勇) College of Materials Science and Engineering, Chongqing University.... Noncrystal SiO2 was coated on the surface of nano-TiO2 to form silica gel polymer with a Ti-O-Si bond, while aluminum compound exists in the form of AlOOH and part Al(OH)3. The integrated dense film can......
Surface Characterization of Laser Surface Melted NiTi Shape Memory Alloy in Hanks'' Solution MAN Hauchung1,YANG Xian-jin2,ZHU Sheng-li2,CUI Zhen-duo2 (1.Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China;2.School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China) 摘要:The surface of Ti-50.8Ni......
