日历腐蚀环境下LY12CZ铝合金力学性能研究  

RESEARCH ON MECHANICAL PROPERTIES Of LY12CZ ALUMINIUM ALLOY UNDER CALENDAR CORROSION ENVIRONMENT

作　　者：杨晓华[1] 姚卫星[1] 陈跃良[2] 

机构地区：[1]南京航空航天大学宇航学院,南京210016 [2]海军航空工程学院青岛分院,青岛266041

出　　处：《机械强度》2003年第2期227-229,199,共4页Journal of Mechanical Strength

基　　金：航空基础科学基金资助项目 (0 0b52 0 1 5)~~

摘　　要：采用加速腐蚀当量折算谱模拟日历腐蚀环境 ,对飞机结构主体材料LY12CZ先做加速腐蚀后再进行疲劳试验 ,确定日历腐蚀环境对LY12CZ材料静强度和疲劳强度 (S—N曲线 )的影响。First, accelerated corrosion tests were carried out for LY12CZ, then, tension strength tests and fatigue tests were conducted. The equivalent environment spectrum of accelerated corrosion was applied to simulate calendar corrosion environment. The results show that:1) the tension strength of LY12CZ Aluminium does not change in statistics in some calendar years and then descends a little; 2)the fatigue strength is degraded with calendar years. On the basis of test data, the dynamic S-N curve is determined.

关 键 词：日历腐蚀环境 LY12CZ铝合金 力学性能 日历寿命 当量环境谱 疲劳强度 飞机 

分 类 号：V215.2[航空宇航科学与技术—航空宇航推进理论与工程] V252.2[一般工业技术—材料科学与工程]