Quasicontinuum Study of Nanoindentation into Nanocrystalline Aluminum Thin Film

摘要：

Quasicontinuum simulations are performed to examine the mechanical response of nanocrystalline aluminum thin film under nanoindentation. The simulations are conducted by driving the flat indenter into the (111) face of one grain in the aluminum film, two load drops have been found during the indentation process, evidence indicates that these load drops are related to the stacking fault emitted from the grain boundary. The effect of indenter width on nanoindentation response is also studied through three simulations with different indenter sizes. a rule is discovered that larger load is needed to initiate the first load drop for the wider indenter; however, this rule is not followed by the second load drop.

关键词： nanoindentation quasicontinuum method nanocrystalline materials aluminum

作者: JI Zhong HOU Shuai

作者单位: School of Materials Science and Engineering,Shandong University,Jinan 250061,China

会议类型: 国际会议

会议名称: The 8th China International Nanoscience and Technology Symposium(2009第八届中国国际纳米科技湘潭研讨会Cinsts09)

会议地点: 湖南湘潭

会议语种:英文

页码: 1-5

在线出版日期: 2009-10-23（万方平台首次上网日期，不代表论文的发表时间）