期刊论文

Qiu, C.-J.(qiuchangjun@hotmail.com)

中文

焊接学报

0253-360X

2006

27

4

105-107

10.3321/j.issn:0253-360X.2006.04.027

湖南省自然科学基金资助项目（03JJY3121） 湖南省教育厅青年基金资助项目（028037）

本校为第一且通讯机构

采用线切割沿涂层／基体界面切成对称切口，两边粘结后直接拉伸的试验方法对高强涂层抗拉结合强度进行评价。并借助有限单元法对涂层／基体交界面上的应力分布及切口附近的应力集中进行了分析，为正确评价涂层／基体的结合强度提供了理论依据。按此方法对不同工艺参数的热喷涂烧结涂层结合强度进行了评价。结果表明，此方法可对高强涂层与基体的结合强度进行评价。

The testing method was used to evaluate the bond strength of high-strength coatings. In this test, symmetrical cuts were cut along the interface of the coating/substrate exactly by wire cutting, then the two sides were adhered and undrawn by tensile force a-long the interface of the coating/substrate. In order to get a precise evaluation of coating/substrate bonding strength, the stress distribution on the coating/substrate interface and the stress concentration of the crack tip were analysed by finite element method. The bonding strength of thermal sprayed layer with various processing parame...