TiNiB复合钎料钎焊Ti2AlNb基合金接头微观组织及性能

Interfacial Microstructure and Properties of Ti2AlNb JointsBrazed with TiNiB Composite Filler Metal

摘要:

采用Ti-66Ni (wt.%)+B的复合钎料对Ti₂AlNb基合金进行钎焊连接,研究了钎焊接头的界面组织与形成机制,分析了钎焊温度与B含量对接头组织与性能的影响。结果表明：钎焊接头的典型界面组织为：Ti₂AlNb/B2/B2+Nb₃Al+τ₃+TiB/τ₃+

Abstract:

Ti-66Ni (wt.%)+B composite brazing alloy was used to braze Ti₂AlNb alloy. The interfacial microstructure and forming mechanism of the brazed joints were studied. The effect of brazing temperature and B content on the interfacial microstructure and mechanical properties were investigated. The results showed that the typical microstructure of the joint was: Ti₂AlNb/B2/B2+Nb₃Al+τ₃+TiB/τ₃+Ti₂Ni/B2+Nb₃Al