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激光拉曼測量SiC(f)/Ti-22Al-26Nb復(fù)合材料界面殘余應(yīng)力
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Determination of Interfacial Residual Stresses in SiC(f)/Ti-22Al/26Nb Composites Using Raman Spectroscopy
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    摘要:

    利用激光拉曼方法直接測量SiC(f)/Ti-22Al-26Nb復(fù)合材料中SiC纖維表面C涂層的拉曼吸收光譜，由此計算出復(fù)合材料的殘余應(yīng)力，并對復(fù)合材料的殘余應(yīng)力進行有限元模擬計算分析。結(jié)果表明：復(fù)合材料界面反應(yīng)層起到降低殘余應(yīng)力的作用，反應(yīng)層越厚殘余應(yīng)力降低值越大，試驗結(jié)果與模擬計算結(jié)果基本一致

    Abstract:

    Raman spectroscopy was used to measure residual stress of carbon layer on SiC fibre embedded longitudinally in SiC(f)/Ti-22Al-26Nb composites with different reaction layers. By measuring the band shifts of carbon layer, the residual stress arising from thermal expansion mismatch was also determined from the SiC fibre. Results show that as the thickness of reaction layer increases the interfacial residual stress dramatically decreases. Finite element analyses have similar results with the test

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肖 鵬,王玉敏,雷家峰,石南林,楊 銳.激光拉曼測量SiC(f)/Ti-22Al-26Nb復(fù)合材料界面殘余應(yīng)力[J].稀有金屬材料與工程,2011,40(9):1540~1543.[Xiao Peng, Wang Yumin, Lei Jiafeng, Shi Nanlin, Yang Rui. Determination of Interfacial Residual Stresses in SiC(f)/Ti-22Al/26Nb Composites Using Raman Spectroscopy[J]. Rare Metal Materials and Engineering,2011,40(9):1540~1543.]
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  • 收稿日期:2010-09-01
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