【摘要】 采用金相、晶间腐蚀试验及极化曲线,研究了再结晶程度及平均晶粒尺寸与7055铝合金板材晶间腐蚀性能的关系。结果表明:随着再结晶程度和晶粒尺寸的增大,其晶间腐蚀性能变差。相对再结晶程度,等轴晶粒尺寸对板材晶间腐蚀性能的影响更大。更多还原

【Abstract】 The effect of re-crystallization degree and average grain size on localized corrosion behavior of 7055 aluminum alloy sheet has been studied by optical metallographic,inter-crystalline corrosion immersion and polarization curve testing.The results show that the inter-crystalline corrosion behavior of 7055 alloy sheet is deteriorated with increasing of re-crystallization degree and average grain size.Compared with re-crystallization degree,the isometric crystal size effects on the inter-crystalline corrosion behavior of 7055 aluminum alloy greater.更多还原