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Ti-25Cu-25Zr釬料與純鈦的釬焊工藝
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國家科技支撐計劃(2007BAE07B07)


Ti-25Cu-25Zr Filler Metal and Pure Titanium Brazed Process
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    摘要:

    用爆炸復(fù)合工藝，制成Ti-Cu-Zr 3層復(fù)合釬料坯，經(jīng)軋制得到0.2 mm厚度的釬料箔。研究了Ti-25Cu-25Zr釬料釬焊純鈦的工藝及性能。利用瞬間液相擴(kuò)散焊原理，分析釬料與鈦基體之間的接觸反應(yīng)焊接機(jī)制，實驗得到釬焊釬縫強(qiáng)度與保溫時間的關(guān)系。結(jié)果表明，釬焊保溫時間小于1.0 s時，由于釬料組元和鈦基體之間的擴(kuò)散還不充分，接頭的斷裂載荷在600 N以下，斷裂發(fā)生在釬縫上；釬焊保溫時間大于1.0 s時，釬料組元和鈦基體之間發(fā)生了明顯的擴(kuò)散，接頭強(qiáng)度顯著提高，斷裂載荷達(dá)到700 N，斷裂發(fā)生在鈦基體的熱影響區(qū)；保溫時間在1.0~4.0 s范圍內(nèi)時，接頭強(qiáng)度趨于一致

    Abstract:

    Three-layer Ti-Cu-Zr filler metal was developed by explosive cladding and rolling, and the brazing foil of 0.2 mm thickness can be got. The properties of Ti-25Cu-25Zr brazing titanium were studied. The diffusion and contact reaction between the filler metal and titanium base metal was analyzed according to the TLP (Transient Liquid Phase Diffusion Bonding) principle, and the relationship between the holding time and the strength of brazed joint has been got. The results show that when the holding time is less than 1.0 s, the rupture load will below 600 N due to the un-completely diffusion and reaction between the filler metal and the titanium base metal, and a rupture occurs on the brazed joint; comparatively, if the holding time is more than 1.0 s, the rupture load reaches to 700 N, the joint strength can be improved because of the obviously diffusion and reaction happened between the filler metal and the titanium base metal, and the rupture occurs on the heat-affected zone of the titanium. The joint strength would be getting the unity, when the holding time is within the range of 1.0 ~ 4.0 s

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楊永福,巨建輝,葉建林,艾建玲,雷忠榮,付維軍. Ti-25Cu-25Zr釬料與純鈦的釬焊工藝[J].稀有金屬材料與工程,2009,38(11):2020~2022.[Yang Yongfu, Ju Jianhui, Ye Jianlin, Ai Jianling, Lei Zhongrong, Fu Weijun. Ti-25Cu-25Zr Filler Metal and Pure Titanium Brazed Process[J]. Rare Metal Materials and Engineering,2009,38(11):2020~2022.]
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  • 收稿日期:2008-11-20
  • 最后修改日期:2009-09-20
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