期刊论文

Xiong Chuang-xian

英文

中南大学学报(英文版)

2095-2899

2007

14

3

305-309

10.1007/s11771-007-0060-x

Foundation item： Project （51412020304QT7106） supported by the National Defense Pre-investigation Foundation of China Project（2003AA741043） supported by the National High-Tech Research and Development Program of China Project（5133001E） supported by the State Key Fundamental Research and Development Program of China

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The influence of cryogenic treatment on the mechanical properties of the extruded Mg-Gd-Y-Zr(Mn) alloys was investigated by the tensile tests, scanning electron microscopy(SEM), transmission electron microscopy(TEM), and energy dispersive X-ray spectroscopy (EDS). The results show that the mechanical properties of both alloys are improved greatly during the in situ tensile test by soaking the samples in liquid nitrogen for 10 min. The ultimate tensile strength, yield tensile strength and elongation of cryogenic treated magnesium alloy added with zirconium or manganese are largely elevated. And...

渗出的 Mg-Gd-Y-Zr (Mn ) 合金的机械性质上的低温实验法的处理的影响被张力的测试调查，扫描电子显微镜学(SEM ) ，传播电子显微镜学(TEM ) ，和能量散 X 光检查光谱学(版本) 。结果证明两合金的机械性质极大地被改进在期间在里面 situ 由为 10 min 在液体氮浸泡样品的张力的测试。最终的张力的力量，低温实验法的对待的镁合金的张力的力量和延伸与锆或锰增加了的产量大部分被提高。并且显著微观结构变化被低温实验法的处理在两合金观察。有很多双胞胎，在微观结构的像杆、像树、像菊的猛抛的阶段和破裂表面当他们在房间温度被观察时，展出可锻的破裂的特征。