GH4090合金圆柱螺旋弹簧应力松弛性能研究  

Researchon stress relaxation performance ofGH4090 superalloy cylindrical spiral spring

作　　者：李少龙 赵振 董红莉 张十庆 陈芝来 黄南 李方 何钦生 王宏 白雨松 LI Shaolong;ZHAO Zhen;DONG Hongli;ZHANG Shiqing;CHEN Zhilai;HUANG Nan;LI Fang;HE Qinsheng;WANG Hong;BAI Yusong(Hunan Power Machinery Research Institute of AVIC, Hunan 412002, China;Chongqing Material Research Institute Co., Ltd., Chongqing 400700, China;National Instrument Functional Material Engineering Technology Research Center, Chongqing 400700, China)

机构地区：[1]中国航发湖南动力机械研究所,湖南412002 [2]重庆材料研究院有限公司,重庆400700 [3]国家仪表功能材料工程技术研究中心,重庆400700

出　　处：《功能材料》2022年第2期2209-2214,2220,共7页Journal of Functional Materials

基　　金：重庆市企业自主创新引导专项(cstc2015qyzccx0600)。

摘　　要：以航空发动机用GH4090合金圆柱螺旋弹簧为研究对象,研究了不同温度下弹簧的静态和动态抗松弛性能。结果表明,静态抗松弛实验下,时效态GH4090合金弹簧在室温和300℃下无松弛、无蠕变;350和400℃下应力松弛率分别为1.08%和1.09%。动态抗松弛实验下,时效态GH4090合金弹簧在室温下无松弛,350℃下应力松弛率为3.23%;变形态GH4090合金弹簧在室温和350℃下应力松弛率分别为3.30%和16.85%。变形态和时效态GH4090合金弹簧的松弛率均随温度的升高而增大,且变形态松弛率变化尤为明显。In this paper,the static and dynamic anti relaxation properties of GH4090 alloy cylindrical helical spring for aeroengine at different temperatures are studied.The results show that aging GH4090 alloy spring has no relaxation and creep at room temperature and 300℃under the static anti relaxation test,and the stress relaxation rates at 350℃and 400℃are 1.08%and 1.09%,respectively.Under the dynamic anti relaxation test,the aging GH4090 alloy spring has no relaxation at room temperature,and the stress relaxation rate is 3.23%at 350℃.The stress relaxation rate of the deformed GH4090 alloy spring at room temperature and 350℃is 3.30%and 16.85%,respectively.The relaxation rate of GH4090 spring increases with the increase of temperature,and the change of relaxation rate of deformed GH4090 alloy spring is especially obvious.

关 键 词：GH4090合金 圆柱螺旋弹簧 静态抗松弛 动态抗松弛 

分 类 号：TG146[一般工业技术—材料科学与工程] O377[金属学及工艺—金属材料]