刘罗林,黄本生,李天宁,何子涛,郑建能

• 1:西南石油大学新能源与材料学院
• 2:西南石油大学能源装备研究院
• 3:二重(德阳)重型装备有限公司

摘要(Abstract)：

采用纯Zn箔作中间层，对2195铝锂合金进行瞬间液相扩散焊(TLP),采用光学显微镜、扫描电镜、X射线衍射、显微硬度计和万能试验机等研究了焊接温度对接头的显微组织、元素扩散、物相以及力学性能的影响。结果表明：随着焊接温度的升高，接头焊缝处元素扩散更充分，组织更均匀，但焊接温度过高时，焊缝处会出现母材过烧和晶粒粗大的现象；接头焊缝处物相主要由Al、Al_(0.71)Zn_(0.29)和CuZn_2金属间化合物组成；随着焊接温度的升高，接头显微硬度总体呈下降趋势，剪切强度呈先上升后下降的趋势，当焊接温度为560℃时，接头剪切强度最大，为96.7 MPa。

关键词(KeyWords)： 铝锂合金;瞬间液相扩散焊;纯Zn箔;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51704255)

作者(Author): 刘罗林,黄本生,李天宁,何子涛,郑建能

DOI: 10.13289/j.issn.1009-6264.2022-0308

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