Small punch testing of al-4 vol. % Al4C3 composite in creep conditions

被引：0

作者：

Dobes, Ferdinand

Milicka, Karel

Besterci, Michal

机构：

[1] Slovak Acad Sci, Inst Mat Res, Kosice 04353, Slovakia

[2] Acad Sci Czech Republ, Inst Phys Mat, Brno 61662, Czech Republic

来源：

HIGH TEMPERATURE MATERIALS AND PROCESSES | 2007年 / 26卷 / 03期

关键词：

creep; small punch; threshold stress; aluminium composite;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Creep behavior of the composite based on aluminium matrix reinforced by 4 vol. % Al4C3 has been studied at temperatures from 623 and 723 K by small punch testing with a constant force. The time dependence of the central deflection was registered and the minimum deflection rate was determined. The dependence of this quantity on applied force can be described by power function with relatively high value of power. The dependence can be rationalized by an analysis in terms of threshold concept. Analytical procedure was given for comparing threshold force in small punch experiments and threshold stress in conventional creep testing.

引用

页码：193 / 199

页数：7