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金属铍的微屈服行为及机理

Micro-yield behavior and mechanism of beryllium metal

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【Author】 ZHONG Jing-ming~(1, 2), GAO Yong~1, WANG Dong-xin~2, WANG Xue-ze~2, WANG Ling-sen~3 (1. Department of Electronic Engineering, Xi’an Technology University, Xi’an 710048, China; 2. Northwest Rare Metal Materials Research Institute, Shizuishan 753000, China; 3. State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China)

【机构】西安理工大学电子工程系；西北稀有金属材料研究院；中南大学粉末冶金国家重点实验室西安710048西北稀有金属材料研究院石嘴山753000；西安710048；石嘴山753000；长沙410083；

【摘要】为研究金属铍的微屈服行为,通过透射电镜观察了1×10-6、50×10-6和200×10-63种不同微屈服阶段材料位错的变化,初探了铍的微屈服机理。通过130多个铍试样的微屈服强度与屈服强度的比较试验证明,用常规简单的屈服强度试验代替冗长的微屈服强度试验是可能的。更多还原

【Abstract】 In order to study the micro-yield behavior of beryllium metal, the dislocation changes of the material were observed at three kinds of micro-yield region with strain of 1×10^-6, 50×10^-6 and 200×10^-6 by TEM and the micro-yield mechanism of beryllium was approached. Through comparison between the micro-yield strength value of and the corresponding yield strength value of more than 130 samples, it is shown that the tedious micro-yield tests can be replaced by common and simple yield tests.更多还原

【关键词】铍；微屈服强度；位错；屈服强度；
【Key words】 beryllium； micro-yield strength； dislocation； yield strength；

【基金】国家自然科学基金资助项目(59764002)

【文献出处】中国有色金属学报 ,The Chinese Journal of Nonferrous Metals , 编辑部邮箱 ,2004年10期

【分类号】TG115
【被引频次】22
【下载频次】313

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