摘要
采用Al72-Cu20-Mg5-Ni3合金为钎料,对15%SiCp/A356复合材料进行氩气保护气氛钎焊。钎焊温度为570、580、590℃,保温时间为30 min。分析不同温度下焊接接头金相显微组织,检测各个接头的显微硬度和剪切强度。结果表明:当焊接温度为570℃时,焊接接头的质量最好,母材与钎料的相互结合较为良好,结合强度得到提高;焊接接头的剪切强度值也达到最大,为38.47 MPa。
Al72-Cu20-Mg5-Ni3 alloy was used as brazing filler metal to braze the 15%SiCp/A356 composite material under argon atmosphere.The brazing temperature was 570,580,590℃,the holding time was 30 min.The metallographic microstructure of the welded joints at different temperatures was analyzed,the microhardness and shear strength of each joint were measured.The results show that when the welding temperature is 570℃,the quality of the welded joint is the best,the base metal and brazing material bond well,and the joint strength reaches the maximum of 38.47 MPa.
作者
邱得超
高增
杨环宇
吴大振
QIU Dechao;GAO Zeng;YANG Huanyu;WU Dazhen(School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China)
出处
《热加工工艺》
北大核心
2020年第17期7-10,共4页
Hot Working Technology
基金
河南省科技攻关资助项目(182102210312)
河南省高等学校重点科研资助项目(15A430007)。
