HETEROGENEOUS GRAIN BOUNDARY EFFECT TO DISPLACEMENT BURSTS OF NANOINDENTATION

摘要：

The displacement burst (DB) nucleated at close to the GB by nanoindentation behaves quite differently from that generating inside a grain.Using the recrystallized copper,nanoindentation has been perfbrmed just close to the GB.Indent load and depth curves seem to be divided into two groups.One of those has the larger critical indent load,which implies the first emission inside the grain,the following pile-up,and then the emission across the GB.The other is plotted in the low critical load region,which can be understood as the GB emission.

关键词： displacement burst nanoindnetation grain boundary pile-up grain boundary dislocation emission

作者: Y.Shibntani Y.Nakahama

作者单位: Dept.of Mechanical Eng.,Osaka University,Suita,Osaka 565-0871,Japan.

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 169-173

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）