Cavitation erosion of NiAl

被引:0
作者
A. Akhtar
R. Salvi
V. K. Sikka
机构
[1] Powertech Labs Inc.,Metals and Materials Engineering Department
[2] University of British Columbia,Metals and Materials Engineering Department
[3] University of British Columbia,the Metals and Ceramics Division
[4] Soligen Technologies Inc.,undefined
[5] Oak Ridge National Laboratory,undefined
来源
Metallurgical and Materials Transactions A | 1999年 / 30卷
关键词
Martensite; Cavitation; Material Transaction; Erosion Rate; NiAl;
D O I
暂无
中图分类号
学科分类号
摘要
Vibratory cavitation erosion tests were carried out on as-cast NiAl intermetallic compounds containing 46.5 to 62.1 at pct Ni. The erosion rate decreased with increasing nickel content by over two orders of magnitude, from a high of 16.4 to 0.11 mg·h−1. These low erosion rates exhibited by the nickel-rich alloys containing 58 and 62.1 at. pct Ni, the interruptions in their mass loss with time, and the unusual effects associated with surface finish and intensity of cavitation were found to be associated with the stress-induced martensitic transformation. Alloys containing 58 to 62 at. pct Ni have the potential for use as materials for the cavitation protection of hydraulic machinery.
引用
收藏
页码:335 / 343
页数:8
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