云纹干涉反转倍增技术研究Ti的应力腐蚀行为  

STUDY ON SCC PROCESS OF Ti IN METHANOL KCl SOLUTION BY MEANS OF MICRO MULTIPLICATIVE MOIRE INTERFEROMETRY

作　　者：张天成[1] 吕宏 褚武扬[1] 朱万旭[2,3] 刘宝琛[2,3] 史训清 

机构地区：[1]北京科技大学表面科学与腐蚀工程系 [2]清华大学工程力学系 [3]北京航空航天大学5系

出　　处：《腐蚀科学与防护技术》1998年第4期217-221,共5页Corrosion Science and Protection Technology

基　　金：国家自然科学基金;金属腐蚀与防护国家重点实验室资助

摘　　要：介绍了高灵敏度的激光云纹显微倍增技术，并用其研究了工业纯钛在甲醇＋０．６ｍｏｌ／ＬＫＣｌ溶液中应力腐蚀时，缺口前端位移场和应变场的变化．结果表明，在应力腐蚀裂纹萌生前，０．６ｍｏｌ／ＬＫＣｌ的甲醇溶液对工业纯钛的阳极溶解（腐蚀）过程本身能使缺口前端的塑性区增大，与此同时，塑性区中各点的塑性变形量也相应增加，即溶解过程本身促进了局部塑性变形．The changes of local displacement fields and local strain fields ahead of loaded notch for Ti in methanol+0.6 mol/L KCl solution have been investigated by the micro multiplicative moire interferometer technique. The results showed that the dissolution process of Ti in methanol+0.6mol/L KCl solution could enlarge the size of plastic zone ahead of loaded notch, at the same time, the plastic deformation amounts of the various points in plastic zone increased before nucleation of SCC, i.e. the anodic dissolution could facilitate the plastic deformation around the notch tip during stress corrosion of Ti in methanol +0.6 mol/L KCl solution.

关 键 词：云纹干涉 显微倍增 工业纯钛 应力腐蚀 塑性变形 

分 类 号：TG172.9[金属学及工艺—金属表面处理]