Cavitation erosion resistance of heat-treated NiTi

被引：39

作者：

Cheng, FT ^{[1
]}

Shi, P

Man, HC

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Dept Mfg Engn, Kowloon, Hong Kong, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 339卷 / 1-2期

关键词：

cavitation erosion; heat treatment; NiTi; indentation profile; screening test;

D O I：

10.1016/S0921-5093(02)00162-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

NiTi (Ti-50.8 at.% Ni) specimens were solution-treated at 1000 degreesC, followed by aging between 200 and 600 degreesC. The cavitation erosion resistance of all the aged specimens in deionized water was improved relative to the solution-treated specimen, with a maximum increase of about 8.7 times, which was achieved by aging at 500 degreesC. The results also indicate that both austenite and martensite contribute to the high cavitation erosion resistance of NiTi. It is also shown that a simple macro-indentation test employing a Rockwell indenter may be used for preliminary screening of heat-treated NiTi with respect to cavitation erosion resistance. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：312 / 317

页数：6

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