航空材料学报2012，Vol.32Issue(3)：73-78,6.DOI:10.3969/j.issn.1005-5053.2012.3.013
盐水环境对预腐蚀铝合金腐蚀疲劳性能的影响
Influence of Saline Environment on Fatigue Property of Pre-Corroded Aluminum Alloy
回丽 1周松 1许良 1马少华 1王岩 1张莹莹1
作者信息
- 1. 沈阳航空航天大学航空制造工艺数字化国防重点学科实验室,沈阳110136
- 折叠
摘要
Abstract
The influence of saline environment on fatigue property of pre-corroded 7XXX aluminum alloy were investigated by means of fatigue life experiments of pre-corroded 7XXX aluminum alloys ( Kt = 1 and Kt = 3) in laboratory air environment and saline environment. The results showed that saline environment significantly reduces fatigue property of pre-corroded 7XXX aluminum alloy. Laboratory air environment enlarges the dispersivity of fatigue life which becomes larger with the lower stress level. Fatigue life ( Kt = 1) is little reduced at a high stress level in saline environment and is 22.71 % of that in air environment. However, it is significantly deduced at a low stress level in saline environment and is 2.22% of that in air environment. In addtion, fatigue life (Kt = 3) is smoothly reduced at different stress level in saline environment.关键词
预腐蚀/盐水环境/疲劳/腐蚀疲劳/铝合金Key words
pre-corrosion/ saline environment/ fatigue/ corrosion fatigue/ aluminum alloy分类
矿业与冶金引用本文复制引用
回丽,周松,许良,马少华,王岩,张莹莹..盐水环境对预腐蚀铝合金腐蚀疲劳性能的影响[J].航空材料学报,2012,32(3):73-78,6.
