摘要
采用Ａｇ－Ｃｕ－Ｔｉ活性钎料，研究了氧化锆陶瓷与ＩＣｒ１８Ｎｉ９Ｔｉ不锈钢的钎焊，探讨了软性中间层Ｃｕ对接头强度的影响规律，分析了陶瓷与钎料的界面反应，结果表明：陶瓷与钎料间存在一明显反应层，厚度约为４．４μｍ，反应产物为δ－ＴｉＯ和γ－ＡｓＴｉ３，并按ＺｒＯ２／δ－ＴｉＯ／δ－ＴｉＯ＋γ－ＡｇＴｉ３／γ－ＡｇＴｉ３／Ａｇ－Ｃｕ呈层状过渡分布，中间层Ｃｕ对陶瓷与不锈钢钎焊接头强度有很大的影响，当厚度合适时，Ｃｕ通过蠕变或屈服机制显著降低了接头残余应力，提高了接头强度；太薄或太厚的中间层对接头强度的改善作用不大。
The brazing of zirconia ceramic to 1Cr18Ni9Ti stainless steel was performed usingAg5 7Cu38Ti5 filler metal in vacuum,The effects of a soft interlayer copper on the jointstrength were investigated,and the interfacial reaction between the ceramic and the fillermetal was also analysed.It was shown that an interfacial reaction layer about 4. 4 μm thickwas found between the ceramic and the filler metal,and the reaction products were δ-TiO andγ-AgTi3.A layer of transition structures with a ZrO2/δ-TiO/S-TiO + γ-AgTi3/γ-AgTi3/Ag-Cu was formed at the interface,Interlayer Cu had a great influence on the joint strength ofceramic to stainless steel bonding,With a suitable thickness,Cu can considerably relax theresidual stress in the joints by a creep or yield mechanism during cooling from joining tem-perature,and increase the joint strength.When Cu was too thin or too thick,its improvementon the joint strength was little;
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1995年第2期85-89,共5页
Journal of Xi'an Jiaotong University
关键词
氧化锆陶瓷
不锈钢
钎焊
中间层
zirconia ceramic stainless steel joining interlayer
