铝合金蚀坑损伤参量评述

摘要

将蚀坑损伤参量分成4类:尺寸、形状、统计和试验参数,回顾了蚀坑深度、投影面积、长宽比、矩形比、表面腐蚀率、分形维数、预腐蚀系数等影响剩余寿命的主要损伤参量,总结了蚀坑等效成初始裂纹的方法.%This paper sorts pit damage parameters into four categories:size,shape,statistical and test parameters,reviews the key damage parameters that affect the residual fatigue life most such as pit depth,projection area,aspect ratio,rectangular ratio,corrosion area ratio,fractal dimension and pre-corrosion coefficient,and summarizes the methods to equal pit as an initial crack.