DEPENDENCE OF HARDNESS OF BERYLLIUM ON GRAIN SIZE

被引：7

作者：

BUNSHAH, RF

ARMSTRONG, RW

机构：

[1] Lawrence Radiation Laboratory University of California, Livermore, CA

[2] Engineering Materials Group, Mechanical Engineering Department, University of Maryland, College Park, MD

来源：

MATERIALS RESEARCH BULLETIN | 1969年 / 4卷 / 04期

关键词：

D O I：

10.1016/0025-5408(69)90099-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Brinell (BHN) and Rockwell (B and K) hardness have been measured for high-purity polycrystalline beryllium having grain sizes in the range between 90 and 600 microns. For each type of test, the hardness H depends on the average grain diameter ℓ, in accordance with the relationship, H = H0 + KH ℓ -1 2, where H0 and KH are experimental constants. The hardness values are lower than those previously reported for impure material, in agreement with a similar difference in the reported yield stress measurements. Metallographic examination of the indentations showed that considerable plastic flow occurred around them. No cracking was observed. © 1969.

引用

页码：239 / +

页数：1

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