共搜索到36269条信息,每页显示10条信息,共3627页。用时:0小时0分0秒640毫秒
of combining energy-field Mg sheet are all higher than those of the normal Mg sheet. Key words: AZ31B Mg alloy; combining energy-field; dynamic recrystallization; texture 镁合金板带具有低密度,高比强度和比刚度及优良的阻尼性能及电磁屏蔽性能..., et al. Effect of annealing process on microstructure and properties of roll-casting AZ31B Mg alloy sheet[J]. Procedia Engineering, 2012, 27: 895-902. [15] 曾荣昌, 韩恩厚, 刘路, 等. 轧制组织对镁合金AM60疲劳性能的影响[J]. 材料研究学......
位差和阴阳极面积比小于AZ91D的所致;AZ91D的腐蚀主要集中在局部区域,形成较深的腐蚀坑,而NZK的腐蚀沿合金表面进行,形成比较均匀的浅腐蚀区域;NZK的腐蚀电位低于AZ91D的腐蚀电位; NZK稀土镁合金的耐点蚀能力高于AZ91D的. 关键词:AZ91D镁合金;Mg-RE合金;腐蚀行为;循环极化 中图分类号:TG172  ... AZ91D. Key words: AZ91D Mg alloy; Mg-RE alloy; corrosion behavior; cyclic polarization  ......
of the precipitate phase. Key words: AZ80 Mg alloy; precipitation; ageing; yielding asymmetry; twinning 1 Introduction Wrought magnesium alloys having a hexagonal close-packed (HCP) structure, exhibit... in the aged alloy specimens. 2 Experimental The material used in this study was a commercial AZ80 Mg alloy with the chemical composition (mass fraction, %): 8.3 Al, 0.6 Zn, 0.5 Mn, 0.002 Cu, Mg (balance......
, SUN Hai-quan1, DING Wen-jiang1,2 1. National Engineering Research Center of Light Alloy Net Forming, Shanghai Engineering Research Center of Mg Materials and Applications, Shanghai Jiao Tong University... nm范围内.根据范特霍夫方程计算由PCT曲线获得的吸氢平台压力,Mg-Ti粉的氢化焓约为-67 kJ/mol H2,显著高于纯镁粉的氢化焓-78.6 kJ/mol H2.TG/DTA分析表明,氢化后Mg-Ti粉的放氢起始温度为386 ℃,低于氢化纯镁粉的放氢温度(423 ℃).通过电弧蒸发法直接向Mg中添加Ti而获得的Mg-Ti超细粉体可以显著改善镁的储氢热力学性能. 关键词:Mg;Mg-Ti;直......
or ZK40-CaO alloys. Micro-segregation in the α-Mg matrix was notably higher for the ZK40 alloy compared with the modified alloys. The combination of this effect with a possible formation of a more stable corrosion layer for the ZK40-CaO was attributed as the main reason for an improved corrosion resistance for the ZK40-CaO alloy. Key words: Mg alloy; ZK40; Y addition; CaO addition; corrosion......
Trans. Nonferrous Met. Soc. China 23(2013) 1949-1956 Fatigue behavior of friction stir spot welded AZ31 Mg alloy sheet joints Tian-jiao LUO, Bao-liang SHI, Qi-qiang DUAN, Jun-wei FU, Yuan-sheng YANG... and all fatigue cracks initiate at the tongue-like region. Key words: AZ31 Mg alloy sheet; friction stir spot welding; fatigue; fatigue failure; fatigue crack 1 Introduction Recently, the automobile......
Applications of carbonic acid solution for developing conversion coatings on Mg alloy YU Bing-lung(余秉隆), LIN Jun-kai(林俊凱), UAN Jun-yen(汪俊延) Department of Materials Science and Engineering...-hydrotalcite (Mg6Al2(OH)16CO3·4H2O) layer and/or calcium carbonate (CaCO3) layer on Mg alloy in a carbonic acid solution system (aqueous HCO3-/CO32- or Ca2+/HCO3-) at 50 ?C were reviewed. Conversion......
Influence of Ga and Hg on microstructure and electrochemical corrosion behavior of Mg alloy anode materials FENG Yan(冯 艳), WANG Ri-chu(王日初), YU Kun(余 琨), PENG Chao-Qun(彭超群), LI Wen-xian(黎文献... and Ga was put forward. Magnesium atoms are dissolved in liquid Hg and Ga to form amalgam and undergo severe oxidation at the amalgam/electrolyte interface. Key words: Mg alloy anode......
T4 condition and T6 condition were investigated. The microstructure for the as-cast Mg-8Gd-3Y-0.4Zr alloy mainly consists of α-Mg and eutectic Mg24(Gd,Y)5 compound. After solution treatment.... Many investigations related to the microstructure and mechanical properties of the Mg-Gd-Y system have been reported [13-15]. According to XU’s research results [16], the Mg-Gd-Y alloy with the ratio......
环伏安曲线 Fig.1 Cyclic voltammograms (CVs) of dissolution-deposition for magnesium on AZ31 alloy and commercial pure Mg electrodes 2.2 溶解-沉积循环性能 AZ31合金与工业纯镁电极前30次的溶解-沉积循环性能如图2所示.其中,对应于充电过程是... of magnesium on AZ31 alloy (a) and commercial pure Mg (b) electrodes in initial 30 cycles 为进一步比较镁在AZ31合金与工业纯镁上的长期溶解-沉积性能,2种电极的长期循环性能对比如图3所示.由图3可知:随着循环次数的增加,镁在2种电极上都表现出良好的重复性,且过电位稳定;当循环进行到202次时,工业纯镁电极的电位突然下......