Mn、Si合金化和退火温度对Fe-Cr-Mo减振合金性能的影响  

Effects of Mn and Si alloying and annealing temperature on properties of Fe-Cr-Mo damping alloy

作　　者：杨延丽 高鹏[1] 孙永庆[2] 梁剑雄[2] Yang Yanli;Gao Peng;Sun Yongqing;Liang Jianxiong(Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093 ,China;Institute for Special Steel,Central Iron and Steel Research Institute,Beijing 100081 ,China)

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093 [2]钢铁研究总院特殊钢研究所,北京100081

出　　处：《金属热处理》2019年第6期55-60,共6页Heat Treatment of Metals

基　　金：国家重点研究发展计划(2016YFB0300104)

摘　　要：采用弯曲共振法测量合金的减振性能,研究了添加0.3%Mn、0.5%Si元素及不同的退火温度对Fe-Cr-Mo减振合金性能的影响。结果表明,Fe-Cr-Mo合金在900~1100℃退火温度范围内,随着退火温度的升高,阻尼和强度先增大后减小,均在1000℃存在峰值,而冲击吸收能量逐渐减小。同时,0.3%Mn、0.5%Si合金元素的添加对Fe-Cr-Mo合金减振性能和力学性能有较大影响。900℃和1000℃退火时,合金阻尼值分别降低10.6%和16.8%,1100℃退火时,阻尼值提高8.1%。900~1100℃退火时,添加0.3%Mn和0.5%Si元素使抗拉强度提高;冲击吸收能量在900℃提高9.1%,在1000℃和1100℃分别降低90.8%和75.4%。Effects of addition of alloy element(0.3%Mn,0.5%Si)and annealing temperature on properties of Fe-Cr-Mo alloy were investigated.The damping capacity of the alloy was tested by using flexural resonance method.The results show that the damping capacity and strength of Fe-Cr-Mo alloy increase first and then decrease when the impact absorbed energy decreases in the range of 900-1100℃.Meanwhile,the addition of 0.3%Mn and 0.5%Si has great impact on damping capacity and mechanical properties of Fe-Cr-Mo alloys.The internal friction is decreased by 10.6%and 16.8%.When the annealing temperature is 900℃and 1000℃respectively.At 1100℃,the damping capacity is increased by 8.1%.The addition of alloy element can increase the strength between 900-1100℃.The impact absorbed energy is increased by 9.1%at 900℃,and decreased by 90.8%and 75.4%at 1000℃and 1100℃,respectively.

关 键 词：退火温度 Fe-Cr-Mo合金 减振性能 力学性能 

分 类 号：TG113[金属学及工艺—物理冶金]