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High temperature tensile behaviors of extruded and rolled AZ31 Mg alloy QIAO Jun(乔 军), WANG Yu(王 瑜), SHI Guo-dong(史国栋) College of Materials Science and Engineering, University of Science... conducted under varying strain rate from 5×10-5 s-1 to 2×10-2 s-1 and constant temperature from 300 ?C to 450 ?C. Experimental results show that the maximum elongation of the AZ31 alloy with an average grain......
:A Grain orientation and texture evolution of AZ31 magnesium alloy during hot compression LIU Xiao1, LOU Yan1, 2, LI Luo-xing1, ZHU Bi-wu1, HE Feng-yi1 (1. State Key Laboratory of Advanced Design... for grain orientation and texture of AZ31 magnesium alloy were investigated by the electron back scattering diffraction (EBSD) technique at different temperatures and strains during hot compression......
J. Cent. South Univ. (2018) 25: 1545-1559 DOI: https://doi.org/10.1007/s11771-018-3847-z Effects of ultrasonic vibration on performance and microstructure of AZ31 magnesium alloy under tensile..., decrease the friction in the metal forming process and improve the surface quality of the workpiece effectively. Tensile tests of AZ31 magnesium alloy were carried out. The stress–strain relationship......
microstructures of AZ31 alloy after warm rolling 如图2(a)所示,在120 ℃时效处理2 h后,合金的显微组织无明显变化,仍然存在较多孪晶,主要是由于变形不均匀且温度较低,导致其内部组织也不十分均匀,故静态再结晶并不完全,此阶段位错密度显著降低(2.4节中讨论),主要发生静态回复.图2(b)所示为140 ℃时效后合金的显微组织.可以看出,合金显微组织为均匀细小的...140 ℃时就已经发生了再结晶过程. 图2 5道次轧制板材时效2 h后的OM显微组织 Fig. 2 OM microstructures of AZ31 alloy after 2 h of aging for 5 passes 为进一步分析微观组织细节,采用SEM进行高倍观察,结果如图3所示.120 ℃时未发生完全再结晶,只是在孪晶界处出现少量再结晶晶粒,证明孪晶界提供......
的各种微观变形机制对应的参数如表1所示. 表1 AZ31镁合金在170 ℃下变形过程中微观变形机制的CRSS及硬化的拟合参数 Table 1 Fitted model parameters describing CRSS and hardening response of micro deformation mechanism of AZ31 Mg alloy... of grain size on shift of neutral layer of AZ31 magnesium alloy under warm condition[J]. Transactions of Nonferrous Metals Society of China, 2015, 25(3): 732-737. [4] GAO Tie-jun, LIU Qing, ZHANG Wen-zhuo......
Trans. Nonferrous Met. Soc. China 23(2013) 567-575 Microstructure control of AZ31 alloy by self-inoculation method for semisolid rheocasting Bo XING1, Yuan HAO1, Yuan-dong LI1,2, Ying MA1,2, Ti-jun... melt into a special designed multi-stream fluid director. The primary phase with dendritic morphology in the conventionally cast AZ31 alloy has readily transformed into near spherical one......
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Effects of Al-10Sr master alloys on grain refinement of AZ31 magnesium alloy YANG Ming-bo(杨明波)1, 2, PAN Fu-sheng(潘复生)2, CHENG Ren-ju(程仁菊)2, TANG Ai-tao(汤爱涛)2 1. College of Materials Science...; Abstract: The effects of Al-10Sr master alloys on grain refinement of AZ31 magnesium alloy were investigated, and the refinement efficiency of different Al-10Sr master alloys (commercial, solubilized......
标志码:A Microstructure and deformation behavior of dual-directional extruded AZ31 magnesium alloy LIU Tian-mo1, 2, LIU Jian-zhong1, LU Li-wei1, YUAN Han-qi1, SHI Xiu-ling1, PAN Fu-sheng1, 2 (1...) Abstract: The AZ31 magnesium alloy was extruded by dual-directional extrusion (DDE) at different temperatures. Then, the microstructures, mechanical properties, tension and compression asymmetry......
Phosphating process of AZ31 magnesium alloy and corrosion resistance of coatings CHENG Ying-liang(程英亮), WU Hai-lan(吴海兰), CHEN Zhen-hua(陈振华), WANG Hui-min(王慧敏), LI Ling-ling(李玲玲) College of Materials Science and Engineering, Hunan University, Changsha 410082, China Received 11 January 2006; accepted 27 April 2006 Abstract: Zinc phosphate films were formed on AZ31 magnesium alloy......