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表面納米化鈦合金與不銹鋼擴散連接
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國家自然科學基金（50675234）；重慶大學研究生科技創(chuàng)新基金（200801A1B0100269）


Diffusion Bonding of Titanium Alloy and Stainless Steel with Surface Nanocrystallization
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    摘要:

    采用高能噴丸（HESP）對TA17鈦合金和0Cr18Ni9Ti不銹鋼棒材的連接面進行了表面自納米化（SSNC）處理，在連接面獲得了一定厚度的納米晶組織層。將鈦合金和不銹鋼的納米化處理連接面對接，在熱模擬試驗機上進行恒溫恒壓和脈沖加壓擴散連接。測試接頭拉伸強度，并對斷口和接頭顯微組織進行分析。結果表明，采用脈沖加壓擴散連接，接頭界面處生成的金屬間化合物層較薄，接頭抗拉強度高達384.0 MPa；斷口呈脆性斷裂特征。

    Abstract:

    Surface self-nanocrystallization (SSNC) by means of high energy shot peening(HESP) was applied to produce nanostructures on the bonding surface of TA17 titanium alloy and 0Cr18Ni9Ti stainless steel bars and nanocrystalline structure layers with certain thickness were formed on the bonding surface of samples. TA17 and 0Cr18Ni9Ti bars were bonded by constant temperature and pressure diffusion bonding (CTPDB) and impact pressure diffusion bonding (IPDB) respectively on Gleeble-1500D tester. Tensile strength was tested, and the joint fractures and microstructures were analyzed. The results show that thinner intermetallic compound layer is formed on the interface of joints by IPDB which has a tensile strength of 384.0 MPa. Fracture of IPDB joints present brittle characteristic.

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韓 靖,盛光敏,周小玲,孫建春.表面納米化鈦合金與不銹鋼擴散連接[J].稀有金屬材料與工程,2010,39(1):42~45.[Han Jing, Sheng Guangmin, Zhou Xiaoling, Sun Jianchun. Diffusion Bonding of Titanium Alloy and Stainless Steel with Surface Nanocrystallization[J]. Rare Metal Materials and Engineering,2010,39(1):42~45.]
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  • 收稿日期:2009-01-16
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