郭国林,沈以赴,马汉春,吕煜,邱型宝,徐子骞,王杰

• 1:常熟理工学院汽车工程学院
• 2:南京航空航天大学材料科学与技术学院

摘要(Abstract)：

采用搅拌摩擦焊对304/430不锈钢交错对接接头进行了焊接,分析了固溶处理对焊接接头的组织和力学性能的影响。结果表明:随着固溶温度升高,基体中第二相粒子逐渐溶解,晶粒长大明显,接头抗拉强度和伸长率总体呈降低趋势。固溶温度为800℃时,第二相粒子部分溶解,接头组织发生回复和再结晶,晶粒细小,接头抗拉强度和伸长率最大,和热处理前接头对比,力学性能有较大改善,接头断裂于430不锈钢侧,具有韧性断裂特征。

关键词(KeyWords)： 搅拌摩擦焊;异种不锈钢;固溶处理;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51475232);; 江苏省高等学校大学生创新训练项目(JX110152017)

作者(Author): 郭国林,沈以赴,马汉春,吕煜,邱型宝,徐子骞,王杰

DOI: 10.13289/j.issn.1009-6264.2018-0555

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