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 high-sensitivity laser micro-doubling technique was introduced and the displacement field and strain field in the front of notch were studied by using this method to study the stress corrosion of industrial pure titanium in methanol + 0.6 mol / L KCl solution. The results show that the anodic dissolution (corrosion) of 0.6mol / L KCl in methanol solution before the initiation of stress corrosion cracking can increase the plastic zone in the front of the notch, while at the same time, The amount of plastic deformation is also correspondingly increased, ie the dissolution process itself promotes localized plastic deformation.