ZK60镁合金的炉中钎焊工艺
Furnace Brazing Process for ZK60 Magnesium Alloy
摘 要
采用高纯锌箔钎料对ZK60镁合金在不同条件下进行炉中真空钎焊, 并用扫描电镜、硬度仪和X射线衍射仪研究了钎焊接头的显微组织、显微硬度及钎缝的物相组成。结果表明: 钎焊温度和保温时间对接头的组织和性能影响较大; 当钎焊温度445 ℃、保温时间45 s时, 接头质量较好, 钎缝无气孔、裂纹, 显微硬度较高; 钎缝组织细小、均匀, 其物相组成为α-Mg及γ-MgZn。
钎焊
显微组织
ZK60 magnesium alloy
brazing
microstructure
Abstract
The high purity zinc foil solder was adopted to weld ZK60 magnesium alloy in vacuum furnace brazing under different conditions. And the microstructure, micro-hardness of brazed joints and phase composition of brazing seam were studied by scanning electron microscopy, hardness testing and XRD analysis. The results show that brazing temperature and hold time had obvious influence on the microstructure and properties of brazed joints. The brazed joint with good quality could be obtained at temperature of 445 ℃ and holding time of 45 s, there were no pores, cracks on the brazing seam, and the micro-hardness was high. The microstructure of brazing seam was fine, uniform, and the phase compositions were α-Mg and γ-MgZn.
中图分类号 TG146.2 TG454 DOI 10.11973/jxgccl201508007
所属栏目 试验研究
基金项目 陕西省优势学科专项资金资助项目(ys37020203)
收稿日期 2014/8/15
修改稿日期 2015/6/23
网络出版日期
作者单位点击查看
备注徐学利(1963-),男,陕西泾阳人,教授。
引用该论文: XU Xue-li,WANG Chun,HOU Jun-cai,ZHANG Chao. Furnace Brazing Process for ZK60 Magnesium Alloy[J]. Materials for mechancial engineering, 2015, 39(8): 35～38
徐学利,王纯,侯军才,张超. ZK60镁合金的炉中钎焊工艺[J]. 机械工程材料, 2015, 39(8): 35～38
被引情况:
【1】杨阳,毛萍莉,刘正,王峰,王志, "银合金化镁钙合金中AgMg、Mg2Ca和AgCa相的第一性原理计算",机械工程材料 40, 66-70(2016)
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参考文献
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