A cavitation erosion model for ductile materials

被引：46
|
作者：
Berchiche, N [1 ]
Franc, JP
Michel, JM
机构：
[1] Dept Naval Architecture & Ocean Engn, SE-41296 Gothenburg, Sweden
[2] Lab Ecoulements Geophys & Ind, F-38041 Grenoble 9, France
来源：
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2002年 / 124卷 / 03期
关键词：
D O I：
10.1115/1.1486474
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An analytical model is proposed for the prediction of cavitation erosion of ductile materials. It is based upon a physical analysis of the work-hardening process due to the successive bubble collapses. The material is characterized by its classical stress-strain relationship and its metallurgical behavior is analyzed from microhardness measurements on cross sections of eroded samples. The flow, aggressiveness is determined front pitting tests, using the material properties to go back to the impact loads. The histogram of impact loads is applied numerically v a large number of times on the material surface and the evolution of the mass loss with the exposure time is computed. The approach is supported by experimental tests.
引用
收藏
页码：601 / 606
页数：6
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