摘要
采用成组法及升降法针对航天用材料7B50铝合金厚板L-T向试样进行高周疲劳强度研究与测定,摸索材料中值疲劳强度的S-N疲劳寿命曲线的绘制方法,测定出关键材料7B50合金板材的疲劳寿命曲线。
High-cycle fatigue strength of L-T samples for7B50aluminum alloy plate for aerospace were researched and determinedaccording to Fatigue test method for metal materials axial loading.Drawing method for mid-value fatigue strength of S-N fatigue liftcurve was groped,and fatigue lift curve for7B50aluminum alloy plate was determined.
作者
刘平
LIU Ping(Northeast Light Alloy Co., Ltd., Harbin 150060, China)
出处
《铝加工》
CAS
2017年第3期26-30,共5页
Aluminium Fabrication
关键词
S-N
曲线
成组法
升降法
中值疲劳强度
疲劳极限
应力比
S-N curve
group method
lifting and lowering method
mid-value fatigue strength
fatigue limit
stress ratio
