MATLAB在Cr涂层微裂纹组态分析中的应用  

MATLAB Used in Analyzing the Microcracks of Cr Coating

作　　者：胡莹[1,2] 张坤 陈光南 吴臣武[1,2] 

机构地区：[1]中国科学皖力学研究所,北京100080 [2]中国科学院研究生院,北京100049

出　　处：《金属热处理》2005年第C00期161-163,共3页Heat Treatment of Metals

基　　金：国家自然科学基金项目（50471087）

摘　　要：镀Cr身管在使用时普遍存在涂层剥落问题，本文结台我国某新型号机枪枪管的研制工艺，对涂层微裂纹组态、控制因素及其与破坏模式的关系进行研究。鉴于微裂纹的纳米级宽度。本文通过特殊的金相制样方法将其扩宽，从而得到反映微裂纹组态的低倍照片。应用MATLAB对微裂纹特征进行统计分析，得出微裂纹密度、长度等特征参数与涂层失效模式间的对席关系，同时证实基体激光离散预处理对微裂纹组态有控制作用。The Cr scaling off is very important for the guns. The experimentation shows that the modes of invalidation are related to microeracks on the Cr. This study wants to do something about the configuration of the mierocracks and the relationship between the microcracks and the invalidation of the guns. We got the optical micrographs of the microeracks for a large range by a special method, for the rnierocracks are too narrow to be showed. We also got the density and length of the microcracks with MATLAB. At the same time, we substantiated that the configuration of the microcracks could be controlled by pretreating the substrate with laser.

关 键 词：Cr涂层 微裂纹 MATLAB 

分 类 号：TQ153.11[化学工程—电化学工业] TG115.21[金属学及工艺—物理冶金]