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材料研究学报  2002, Vol. 16 Issue (2): 177-182    
  论文 本期目录 | 过刊浏览 |
中锰钢高应变率诱导的特异塑性
张旺峰1;2; 卢正欣2; 陈瑜眉2; 朱金华2
1.北京航空材料研究院;2. 西安交通大学金属材料强度国家重点实验室
引用本文:

张旺峰; 卢正欣; 陈瑜眉; 朱金华 . 中锰钢高应变率诱导的特异塑性[J]. 材料研究学报, 2002, 16(2): 177-182.

全文: PDF(666 KB)  
摘要: 研究了高应变率时中锰钢的动态拉伸性能,结果表明,在高应变率下中锰钢的室温强度增加近1倍,塑性由22.8%增加到67.4%,随着应变率的提高,孪晶数目增加,相应的塑性增加。显著的增塑效应与孪生变形机制有关,也与断裂模式由低应变率的沿晶断裂转化为高应变率的晶内韧窝有关,不是由相变或绝热温升引起的。
关键词 孪生变形断裂模式增塑效应应变率    
Key words
收稿日期: 1900-01-01     
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