镍基合金GH536材料高温低循环疲劳特性研究  

Study on High-Temperature Low Cycle Fatigue Behavior of Nickel Base Superalloy GH536

作　　者：赵明[1] 徐林耀[1] 张克实[1] 任平珍[1] 杨秉玉[1] 

机构地区：[1]西北工业大学航空动力与热力工程系,西安710072

出　　处：《机械科学与技术》2002年第2期270-281,共12页Mechanical Science and Technology for Aerospace Engineering

摘　　要：对镍基合金 GH5 36材料在三种不同温度下的低循环疲劳特性进行了研究。给出了材料的应变 -寿命关系和应力应变关系。讨论了材料的疲劳特性随温度的变化。结果表明 ,在中等应变幅值之下 。In this paper, low cycle fatigue testing on Nickel base superalloy GH536 were performed at three different temperatures(600℃, 700℃, 800℃).The strain life and cyclic stress strain relationship were given at various temperatures. The change in fatigue life behavior and fatigue parameters with temperature was discussed. At low and intermediate total strain amplitudes, the fatigue life was found to decrease with the increasing of temperature.

关 键 词：低循环疲劳 镍基合金 最小二乘法 高温合金 固溶强化 

分 类 号：TG146.15[一般工业技术—材料科学与工程] TG115.57[金属学及工艺—金属材料]