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Solid-State Phase Transformation in Diffusion Couples of U-Mo/Nb
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Solid-State Phase Transformation in Diffusion Couples of U-Mo/Nb
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International S&T Cooperation Program of China (2006DFA53600); the National Basic Research Program of China (2007CB613805); the National Key Technologies R&D Program (2007BAE07B01)

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    摘要:

    采用包覆熱軋法制備了U-Mo/Nb固相復合擴散偶。在790 ℃下對U-Mo/Nb固相復合擴散偶進行了擴散熱處理。采用掃描電鏡（SEM）觀測了擴散偶的擴散層，采用能譜法測定了擴散層中不同固溶體相的組成。結果表明，30 h熱處理后擴散偶Nb金屬基體一側得到的3種形式U-Nb固溶體，分析認為擴散層中最終固溶體相組成與U晶型轉(zhuǎn)變及其合金化因素有關。

    Abstract:

    Solid bonding diffusion couples of U-Mo/Nb were made by clad and hot rolling. The diffusion couples were heat-treated at 790 °C for different time. The obversation of the diffusion layers was taken by scan electronic microscope and the main elements in different solid state phases were measured by energy dispersive spectrometer. The research results indicate that there exist were three different U-Nb phases coming into the Nb-base side of the diffusion couple heat-treated for 30 h. The phase components of the final solid state are associated with the phase transformation of U and the solubility of alloy elements in different U-phase

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龐曉軒,劉婷婷,尹昌耕,孫長龍. Solid-State Phase Transformation in Diffusion Couples of U-Mo/Nb[J].稀有金屬材料與工程,2011,40(10):1718~1720.[Pang Xiaoxuan, Liu Tingting, Yin Changgeng, Sun Changlong. Solid-State Phase Transformation in Diffusion Couples of U-Mo/Nb[J]. Rare Metal Materials and Engineering,2011,40(10):1718~1720.]
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  • 收稿日期:2010-10-26
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