| Phase equilibria, diffusion growth and diffusivities in
Ni-Al-Pt system using Pt/β -NiAl diffusion couples |
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| 作者姓名： | Wei-yan GONG Li-jun ZHANG Hai-xia WEI Chun-gen ZHOU |
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| 基金项目： | Project(50971013) supported by the National Natural Science Foundation of China; Project supported by the Program for New Century Excellent Talents in University(NCET) |
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| 摘 要： | The phase equilibria,diffusion growth and diffusivities in the Ni-Al-Pt system at 1 150,1 200 and 1 250℃were studied using Pt/β-NiAl diffusion couples.Based on the measured concentration profiles coupled with the local equilibrium hypothesis,the tie-lines between neighboring phases were determined.Two intermediate phases,Pt_3Al andα-NiPt(Al),are found to develop between the Pt andβ-NiAl couples.The thicknesses of Pt_3Al andα-NiPt(Al) layers varies linearly with the square of annealing time, indicating th...
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| 关 键 词： | 山甲 |
| 收稿时间： | 12 February 2011 |
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