温度和加载率对Sn-58 Bi合金力学性能影响试验研究

TG425; 通过不同温度和加载率下拉伸试验,获得了Sn-58％(质量分数)Bi共晶合金的弹性模量、拉伸强度、断裂应变等主要力学参数;结合断口微观组织的观测,对Sn-58％Bi共晶合金拉伸变形特性进行了研究.分析了加载率和温度对Sn-Bi合金变形行为的影响.试验结果分析表明,合金延展性随温度升高而增大,随加载率增大而显著减小.断口微观组织观测分析表明,Sn-Bi合金在不同温度和加载率下,存在不同的变形机制.合金在低温和高加载速率下主要以断解理断裂为主.随温度增加,逐渐转变为韧窝、撕裂棱、解理面为主的准解理断裂,高加载率下以沿晶韧窝断裂和解理断裂为主的综合断裂....

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Published in功能材料 Vol. 52; no. 1; pp. 145 - 155
Main Authors 梁斌, 胡鹏, 聂源, 冯高鹏, 周婕群, 拜云山, 牛公杰, 牛伟, 周燕良
Format Journal Article
LanguageChinese
Published 中国工程物理研究院 总体工程研究所,四川 绵阳 621900%火箭军装备部驻绵阳第一军代室,四川 绵阳 621900 2021
Subjects
力学性能
显微组织
Sn-Bi共晶合金
断裂和断裂
应变率效应
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Abstract TG425; 通过不同温度和加载率下拉伸试验,获得了Sn-58％(质量分数)Bi共晶合金的弹性模量、拉伸强度、断裂应变等主要力学参数;结合断口微观组织的观测,对Sn-58％Bi共晶合金拉伸变形特性进行了研究.分析了加载率和温度对Sn-Bi合金变形行为的影响.试验结果分析表明,合金延展性随温度升高而增大,随加载率增大而显著减小.断口微观组织观测分析表明,Sn-Bi合金在不同温度和加载率下,存在不同的变形机制.合金在低温和高加载速率下主要以断解理断裂为主.随温度增加,逐渐转变为韧窝、撕裂棱、解理面为主的准解理断裂,高加载率下以沿晶韧窝断裂和解理断裂为主的综合断裂.
AbstractList TG425; 通过不同温度和加载率下拉伸试验,获得了Sn-58％(质量分数)Bi共晶合金的弹性模量、拉伸强度、断裂应变等主要力学参数;结合断口微观组织的观测,对Sn-58％Bi共晶合金拉伸变形特性进行了研究.分析了加载率和温度对Sn-Bi合金变形行为的影响.试验结果分析表明,合金延展性随温度升高而增大,随加载率增大而显著减小.断口微观组织观测分析表明,Sn-Bi合金在不同温度和加载率下,存在不同的变形机制.合金在低温和高加载速率下主要以断解理断裂为主.随温度增加,逐渐转变为韧窝、撕裂棱、解理面为主的准解理断裂,高加载率下以沿晶韧窝断裂和解理断裂为主的综合断裂.
Author 冯高鹏
拜云山
聂源
梁斌
牛公杰
周燕良
牛伟
胡鹏
周婕群
AuthorAffiliation 中国工程物理研究院 总体工程研究所,四川 绵阳 621900%火箭军装备部驻绵阳第一军代室,四川 绵阳 621900
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Author_FL FENG Gaopen
NIU Wei
HU Peng
BAI Yunshan
ZHOU Yanliang
ZHOU Jiequn
LIANG Bin
NI Yuan
NIU Gongjie
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Keywords 力学性能
显微组织
Sn-Bi共晶合金
断裂和断裂
应变率效应
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Title 温度和加载率对Sn-58 Bi合金力学性能影响试验研究
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