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韩靖, 盛光敏, 胡国雄, 秦斌. 表面纳米化不锈钢与钛合金扩散连接中的扩散系数[J]. 焊接学报, 2008, (5): 25-29.
引用本文: 韩靖, 盛光敏, 胡国雄, 秦斌. 表面纳米化不锈钢与钛合金扩散连接中的扩散系数[J]. 焊接学报, 2008, (5): 25-29.
HAN Jing, SHENG Guangmin, HU Guoxiong, QIN Bin. Diffusion coefficient during diffusion bonding of surface selfnanocrystallinzation 0Cr18Ni9Ti and TA17[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (5): 25-29.
Citation: HAN Jing, SHENG Guangmin, HU Guoxiong, QIN Bin. Diffusion coefficient during diffusion bonding of surface selfnanocrystallinzation 0Cr18Ni9Ti and TA17[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (5): 25-29.

表面纳米化不锈钢与钛合金扩散连接中的扩散系数

Diffusion coefficient during diffusion bonding of surface selfnanocrystallinzation 0Cr18Ni9Ti and TA17

  • 摘要: 采用高能喷丸对0Cr18Ni9Ti不锈钢和TA17近α钛合金棒材端面进行了表面自纳米化处理,在处理表面以下一定厚度内形成了纳米晶组织。利用脉冲加压扩散连接在825℃下对不锈钢和钛合金进行时间为180 s的扩散连接,得到了抗拉强度为221.6 MPa的扩散连接接头,利用能谱仪(EDS)测试出接头界面两侧一定范围内不同原子的扩散浓度,计算出了Fe原子在TA17近α钛合金扩散层中的扩散系数。结果表明,钛合金与不锈钢经表面自纳米化处理后,在短时间的扩散连接过程中原子扩散系数有所提高。

     

    Abstract: The surface self-nanocrystallinzation was applied to ends of 0Cr18Ni9Ti stainless steel and TA17 near α titanium alloy bars by means of high energy shot peening(HESP), nanostructured surface layers on the ends of samples were obtained.Pulse-pressuring diffusion bonding (PPDB) of 0Cr18Ni9Ti stainless steel and TA17 titanium alloy with nanostructured layers was carried out at 825℃within 180 s.Tighten diffusion bonding joint of 0Cr18Ni9Ti and TA17 which tensile strength is 221.6 MPa were formed.And the atomic diffusion concentrations near interface were measured by using energy spectrometer.The diffusion coefficient of Fe atom during diffusion bonding in TA17 titanium alloy was achieved, the result shows that the diffusion coefficient of atoms during short-time diffusion bonding can be enhanced after 0Cr18Ni9Ti stainless steel and TA17 near α titanium alloy were treated.

     

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