华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (6): 51-55.

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加镍过渡层钛合金/不锈钢网的扩散连接技术

李小强李元元邵明龙雁冯吉才2   

  1. 1、华南理工大学 金属新材料研究开发中心,广东 广州 510640 2、哈尔滨工业大学 现代焊接生产技术国家重点实验室, 黑龙江 哈尔滨 150001
  • 出版日期:2003-06-20 发布日期:2022-09-08
  • 通信作者: 李小强(1972一),男,博士后,主要从事新材料 制备 、成形及连接技术的研究
  • 作者简介:李小强(1972一),男,博士后,主要从事新材料 制备 、成形及连接技术的研究

Diffusion Bonding of Titanium Alloy to Stainless Steel Web with a Nickel Interlayer

LI Xiaoqiang1 LI Yuanyuan1 SHAO Ming1 LONG Yan1 FENG Jicai2   

  • Online:2003-06-20 Published:2022-09-08
  • Contact: 李小强(1972一),男,博士后,主要从事新材料 制备 、成形及连接技术的研究
  • About author:李小强(1972一),男,博士后,主要从事新材料 制备 、成形及连接技术的研究
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摘要: 研究TC4钛合金与00Cr18Ni10不锈钢网加Ni中间过渡层时的扩散连接工艺、接头微观组织及其力学性能。结果表明,扩散层由较薄单层TiNi或较厚Ti2Ni/TiNi/TiNi3多层脆性相组成时,接头强度偏低;当过渡层镍箔厚30μm时,最佳连接工艺参数为:连接温度θ=850℃、连接比压力ρ=10MPa、连接时间t=10~15min,接头剪切强度比直接连接时提高近一倍,达146MPa,且连接试样无明显变形。

关键词: 钛合金, 不锈钢网, Ni过渡层, 金属间化合物, 剪切强度

Abstract: The diffusion bonding technology of titanium alloy TC4 to stainless steel 00Cr18Ni10 web with a thin nickel interlayer, the microstructure of the joints and their mechanical properties were investigated. Experimental results show that when the diffusion layer of the joint comprised of a single brittle layer of TiNi or a multi-layer of Ti2Ni/TiNi/TiNi3, the strength of the joint was relatively low. As for the 30 μm thick interlayer of Ni, the optimum bonding parameters were as follows: bonding temperature θ = 850 ℃, bonding pressure p = 10 MPa and bonding time t = 10 - 15 min. So the shear strength of the joint without obvious shape changing was up to 146 MPa, which is one time higher than that of direct diffusion bonding.

Key words: titanium alloy, stainless steel web, Ni interlayer, intermetallic compound, shear strength