Fracture behavior characteristic of ceramic reinforced metal-base coatings

被引：0
作者：
Ma C. [1 ,3 ]
Jing H. [1 ,2 ]
Xu L. [1 ,2 ]
机构：
[1] School of Materials Science and Engineering, Tianjin University
[2] Tianjin Key Laboratory of Advanced Joining Technology
[3] Technical Center of Tianjin Electric Power Corp
来源：
Transactions of Tianjin University | 2009年 / 15卷 / 01期
基金：
高等学校博士学科点专项科研基金;
关键词：
Coatings; Finite element analysis; Fracture behavior; Interface;
D O I：
10.1007/s12209-009-0010-9
中图分类号：
学科分类号：
摘要：
The fracture behavior of a ceramic reinforced metal-base coating prepared by high velocity arc spraying (HVAS) technology in three-point bending test was studied. Moreover, finite element analysis (FEA) was adopted to analyze the stress distribution in the crack front. It can be found that the crack normal to the interface in the coatings occurred at the location where a fixed moment of force was reached. So the critical moment can be taken as the coating cracking criterion, which was confirmed by FEA results. In addition, the stress levels at three different locations where cracks occurred near the interface are almost the same. The results will provide reference for the design of coatings and the structure integrity evaluation of coating/substrate systems. © Tianjin University and Springer-Verlag 2009.
引用
收藏
页码：50 / 55
页数：5
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