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Cu/Al固液連接界面組織演化的定量分析
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西安理工大學(xué) 材料科學(xué)與工程學(xué)院,西安理工大學(xué) 材料科學(xué)與工程學(xué)院,西安理工大學(xué) 材料科學(xué)與工程學(xué)院,西安理工大學(xué) 材料科學(xué)與工程學(xué)院,西安理工大學(xué) 材料科學(xué)與工程學(xué)院

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Quantitative Analysis of Microstructural Evolution at Cu/Al Solid-Liquid Bonding Interface
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School of Materials Science and Engineering,Xi’an University of Technology,Xi’an,School of Materials Science and Engineering,Xi’an University of Technology,Xi’an,School of Materials Science and Engineering,Xi’an University of Technology,Xi’an,School of Materials Science and Engineering,Xi’an University of Technology,Xi’an,School of Materials Science and Engineering,Xi’an University of Technology,Xi’an

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    摘要:

    采用固-液法快冷成型制備了Cu/Al整體材料。利用SEM，EDS，XRD等分析了Cu/Al界面的微觀結(jié)構(gòu)和相組成，基于擴(kuò)散方程并結(jié)合相圖定量分析了Cu/Al界面組織演化過(guò)程。結(jié)果表明：從Cu側(cè)至Al側(cè)，界面依次形成了區(qū)域Ⅰ(AlCu+Al2Cu)混合組織，過(guò)共晶組織 [Al2Cu+(Al2Cu+α-Al)]的區(qū)域Ⅱ和亞共晶組織 [α-Al+(Al2Cu+α-Al)]的區(qū)域Ⅲ；隨著界面Cu濃度的變化，Al2Cu相具有不同形貌；且各個(gè)區(qū)域厚度同理論值基本一致。

    Abstract:

    The Cu/Al diffusion couples were prepared by solid-liquid bonding method. Interfacial microstructure and phase composition were investigated by scanning electron microscope (SEM), energy dispersive spectrometry (EDS) and X-ray differential (XRD). Moreover, the microstructural evolution of Cu/Al interface was quantitatively analyzed on the basis of diffusion theory and phase diagram. The results reveal that: the interface consists ofⅠ(AlCu+Al2Cu), hypereutectic microstructureⅡ[Al2Cu+(α-Al+Al2Cu)] and hypoeutectic microstructure Ⅲ [α-Al+(α-Al+Al2Cu)] from Cu side to Al side accordingly. Further, there are various morphologies of Al2Cu phase formed with the decreasing of Cu concentration. Additionally, the thickness of three diffusion zones is basically identical with the theoretical prediction.

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王 嬋,梁淑華,鄒軍濤,姜伊輝,楊 卿. Cu/Al固液連接界面組織演化的定量分析[J].稀有金屬材料與工程,2018,47(4):1037~1042.[Wang Chan, Liang Shuhua, Zou Juntao, Jiang Yihui, Yang Qing. Quantitative Analysis of Microstructural Evolution at Cu/Al Solid-Liquid Bonding Interface[J]. Rare Metal Materials and Engineering,2018,47(4):1037~1042.]
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  • 收稿日期:2016-06-08
  • 最后修改日期:2018-04-19
  • 錄用日期:2016-09-14
  • 在線發(fā)布日期: 2018-05-31
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