A FRICTION EFFECT IN LOW-LOAD HARDNESS TESTING OF COPPER AND ALUMINUM

被引：43

作者：

SHI, H

ATKINSON, M

机构：

[1] Department of Metallurgy and Materials Engineering, The University of Wollongong, Wollongong, 2500, New South Wales

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 04期

关键词：

D O I：

10.1007/BF01045774

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vickers hardness tests were conducted on samples of copper and aluminium in a cold rolled or annealed condition to determine the apparent hardness variation in the load range 15 g to 20 kg. The variation was greatest for the soft specimens. Lubrication with an extreme-pressure lubricant was effective in reducing the hardness values to a virtually constant level for each metal. It is therefore reaffirmed that the hardness variation is attributable to friction and that strain hardening propensity is important in governing the magnitude of the variation. Comparison of these findings with data previously reported for similar tests on iron suggests that the phenomenon is probably an indentation size effect. © 1990 Chapman and Hall Ltd.

引用

页码：2111 / 2114

页数：4