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铝合金蚀坑损伤参量评述 被引量:6

A SURVEY ON DAMAGE PARAMETERS OF ALUMINUM ALLOY CORROSION PIT
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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 tour caregorms:size,shape,statistical and eters, 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.
作者 孙辽 姚卫星
出处 《力学与实践》 北大核心 2013年第4期10-19,共10页 Mechanics in Engineering
基金 国家自然科学基金项目(51275241) 江苏省优势学科建设项目资助
关键词 蚀坑形貌 剩余疲劳寿命 损伤参量 蚀坑等效 pit morphology, residual fatigue life, damage parameters, pit equivalence
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