TC4钛合金/不锈钢真空钎焊接头的界面组织及抗剪强度
Interfacial Microstructure and Shear Strength of TC4 Titanium Alloy/Stainless Steel Vacuum Brazed Joint
摘 要
在钎焊温度800~890 ℃、保温时间2~25 min的条件下, 采用Ag-28%Cu钎料对TC4钛合金与1Cr18Ni9Ti不锈钢进行真空钎焊, 并对接头的界面组织及抗剪强度进行了研究。结果表明: 由于TC4母材中的钛向钎料溶解并扩散到不锈钢与钎料的界面, 形成了固溶Cu的FeTi相, 解决了不锈钢难于被一般钎料润湿的问题; 钎焊接头界面结构为TC4/Ti/Ti2Cu/TiCu/Ag+Cu/Ti40Cu60-xFex/TiFe/不锈钢; 在钎焊温度为830 ℃、保温时间为5 min的条件下, 接头获得的抗剪强度最高, 为103 MPa。
不锈钢
真空钎焊
界面组织
抗剪强度
TC4 titanium alloy
stainless steel
vacuum brazing
interfacial microstructure
shear strength
Abstract
TC4 and 1Cr18Ni9Ti were brazed by using Ag-28%Cu brazing filler metal under the conditions of brazing temperature of 800-890 ℃ and heating times of 2-25 min, and the interfacial microstructure and shear strength were investigated. The results show that Ti elements in TC4 dissolved into brazing filler metal and diffused to the interface of brazing filler metal and stainless steel, FeTi+Cu phase was formed at the interface, and thus the problem for the brazing filler metal being difficult to wetting the stainless steel was solved. The interface structure of brazed joints was TC4/ Ti/ Ti2Cu/ TiCu/Ag+Cu/Ti40Cu60-xFex/TiFe/1Cr18Ni9Ti. The maximum shear strength was 103 MPa when the brazing temperature was 830 ℃ and heating time was 5 min.
中图分类号 TG454
所属栏目 试验研究
基金项目 上海市教委重点学科项目(J51402); 上海市教委优青项目(gjd08013)
收稿日期 2011/12/5
修改稿日期 2012/8/8
网络出版日期
作者单位点击查看
备注秦优琼(1978-), 女, 四川广安人, 副教授, 博士。
引用该论文: QIN You-qiong,YU Zhi-shui. Interfacial Microstructure and Shear Strength of TC4 Titanium Alloy/Stainless Steel Vacuum Brazed Joint[J]. Materials for mechancial engineering, 2012, 36(11): 29～31
秦优琼,于治水. TC4钛合金/不锈钢真空钎焊接头的界面组织及抗剪强度[J]. 机械工程材料, 2012, 36(11): 29～31
被引情况:
【1】朱春莉,陈思杰, "连接温度对TA2钛板瞬时液相扩散连接接头组织和性能的影响",机械工程材料 39, 19-22(2015)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】李梁, 孙键科, 孟祥军.钛合金的应用现状及发展前景[J]. 钛工业进展, 2004, 21(5):19-24.
【2】张启运, 庄鸿寿.钎焊手册[M]. 北京: 机械工业出版社, 2008:506-509.
【3】SMORYGO O, KIM J S, KIM M D.Evolution of the interlayer microstructure and the fracture modes of the zirconia/Cu-Ag-Ti filler/Ti active brazing joints[J]. Materials Letters, 2007, 61(2):613- 616.
【4】YUE X, HE P, FENG J C, et al.Microstructure and interfacial reactions of vacuum brazing titanium alloy to stainless steel using an AgCuTi filler metal[J]. Materials Charateristics, 2008, 59(12):1721-1727.
【5】ABDEL-MONEM ELREFAEY A, TILLMAN W.Microstructure and mechanical properties of brazed titanium/ steel joints[J]. Journal of Material Scicence, 2007, 42:9553-9558.
【6】LIU C C, OU C L, SHIUE R K.The microstructural observation and wettability study of brazing Ti-6Al-4V and 304 stainless steel using three braze alloys[J]. Journal of Materials Science, 2002, 37:2225-2235.
【7】杨静, 王飞, 朱金霞.Ag95CuNiLi 钎料钎焊钛合金与不锈钢异种金属的性能分析[J]．焊接学报, 2004, 25(1):48-50.
【8】薛忠明, 王奇娟, 曲文卿, 等.钛合金与不锈钢高频感应钎焊工艺试验研究[J]. 航天制造技术, 2004(12):31-35.
【9】VAN BEEK J A, KODENTSOV A A, VAN LOO F J J. Phase equilibria in the Cu-Fe-Ti system at 1123K[J]. Journal of Allloys and Compounds, 1995, 217:97-103.
【2】张启运, 庄鸿寿.钎焊手册[M]. 北京: 机械工业出版社, 2008:506-509.
【3】SMORYGO O, KIM J S, KIM M D.Evolution of the interlayer microstructure and the fracture modes of the zirconia/Cu-Ag-Ti filler/Ti active brazing joints[J]. Materials Letters, 2007, 61(2):613- 616.
【4】YUE X, HE P, FENG J C, et al.Microstructure and interfacial reactions of vacuum brazing titanium alloy to stainless steel using an AgCuTi filler metal[J]. Materials Charateristics, 2008, 59(12):1721-1727.
【5】ABDEL-MONEM ELREFAEY A, TILLMAN W.Microstructure and mechanical properties of brazed titanium/ steel joints[J]. Journal of Material Scicence, 2007, 42:9553-9558.
【6】LIU C C, OU C L, SHIUE R K.The microstructural observation and wettability study of brazing Ti-6Al-4V and 304 stainless steel using three braze alloys[J]. Journal of Materials Science, 2002, 37:2225-2235.
【7】杨静, 王飞, 朱金霞.Ag95CuNiLi 钎料钎焊钛合金与不锈钢异种金属的性能分析[J]．焊接学报, 2004, 25(1):48-50.
【8】薛忠明, 王奇娟, 曲文卿, 等.钛合金与不锈钢高频感应钎焊工艺试验研究[J]. 航天制造技术, 2004(12):31-35.
【9】VAN BEEK J A, KODENTSOV A A, VAN LOO F J J. Phase equilibria in the Cu-Fe-Ti system at 1123K[J]. Journal of Allloys and Compounds, 1995, 217:97-103.
相关信息
