Creep of micron-sized aluminium columns

被引：35

作者：

Ng, K. S. ^{[1
]}

Ngan, A. H. W. ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2007年 / 87卷 / 12期

关键词：

D O I：

10.1080/09500830701666147

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Micron-sized aluminium columns, produced by focused-ion beam milling, were subjected to compressive creep in a nanoindentation machine using a flat-ended tip to study their time-dependent deformation behaviour at room temperature. At constant load, their strain increased almost linearly with time, with sporadic but large strain bursts superimposed. This represents a form of creep behaviour not known beforehand for aluminium. Strain bursts were also observed to occur during reloading at stresses higher than the first yield stress during initial loading.

引用

页码：967 / 977

页数：11

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