王春艳,张宇鹏,许磊

• 1:广州科技贸易职业学院机电系
• 2:广州有色金属研究院焊接技术研究所

摘要(Abstract)：

对比研究了SAC305、SAC0307、SAC0307X共3种无铅钎料在不同环境温度和加载速率下的力学性能。结果表明,合金元素Ni、P等的添加能有效改善低Ag钎料的拉伸力学性能,但对钎料韧性提高有限;低Ag钎料SAC0307在55℃下的强度和韧性均低于SAC305钎料,而在85℃其韧性优于SAC305钎料。在55℃和85℃条件下,钎料合金拉伸力学性能均显著下降,在加载速率20 mm/min和55℃条件下,SAC305综合力学性能更有优势;而在85℃,低Ag无铅钎料SAC0307具备优势,因此低银无铅钎料应用需要进一步改善其在40~60℃范围的综合力学性能。

关键词(KeyWords)： 低银钎料;加载速度;拉伸性能;无铅;伸长率

Abstract:

Keywords:

基金项目(Foundation): 广州市珠江科技新星专项(2013J2200033)

作者(Author): 王春艳,张宇鹏,许磊

DOI: 10.13289/j.issn.1009-6264.2015.01.006

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