腐蚀疲劳试验相关技术标准
标准名称:金属和合金的腐蚀 腐蚀疲劳试验 第一部分:循环失效试验
标准编号:GB/T 20120.1-2006
发布日期:2006-03-02
实施日期: 2006-09-01
标准概述:本部分规定了金属及其合金在水或气体环境中的腐蚀疲劳试验和循环失效试验。腐蚀或其他化学活性环境可以促使金属及其合金诱发疲劳裂纹并加快疲劳裂纹扩展速率。腐蚀疲劳过程不局限在特定的金属/环境体系中,如果没有实验室试验测得的数据,对于所有载荷和环境组合下,疲劳寿命安全性计算均无法进行。本部分不适用于零件或组件的腐蚀疲劳试验。
标准名称:金属和合金的腐蚀 腐蚀疲劳试验 第2部分:预裂纹试样裂纹扩展试验
标准编号:GB/T 20120.2-2006
发布日期:2006-03-02
实施日期: 2006-09-01
标准概述:本部分规定了一种断裂力学方法, 在可控环境中确定在循环载荷下的预裂纹的裂纹扩展速率,并测量裂纹生长的临界应力强度因子范围。在此范围以下,裂纹扩展速率低于各方限定的极限值。本部分适用于在液相或气相环境中金属和合金的腐蚀疲劳试验。
标准名称:Standard Test Method for Measurement of Fatigue Crack Growth Rates
标准编号:ASTM E647–11
实施日期: 2011-05-01
标准概述:This test method covers the determination of fatigue crack growth rates from near-threshold to Kmax controlled instability. Results are expressed in terms of the crack-tip stress-intensity factor range (△K), de?ned by the theory of linear elasticity.Several different test procedures are provided, the optimum test procedure being primarily dependent on the magnitude of the fatigue crack growth rate to be measured.Materials that can be tested by this test method are not limited by thickness or by strength so long as specimens are of sufficient thickness to preclude buckling and of sufficient planar size to remain predominantly elastic during testing.