Silicide precipitation in a γ-based Ti-47Al-2w-0.5Si alloy
Silicide precipitation in a γ-based Ti-47Al-2w-0.5Si alloy
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DOI：
10.1016/s1359-6462(97)00077-8
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发表时间：
1997-07
影响因子：
6
通讯作者：
W. Yin;V. Lupinc
中科院分区：
文献类型：
--
作者：
W. Yin;V. Lupinc
尽管已经对{gamma}-TiAl合金中硅化物的微观结构进行了一些研究，但仅限于含有高硅含量（{约}3at.%）的合金。此外，据作者所知，在含过渡元素（如Nb、V、W、Cr）的合金中，硅化物与稳定至室温的{β}基体之间的晶体取向关系尚未见报道。本研究旨在研究添加2 at.% W且含有0.28--0.59 at.% Si的γ-TiAl基合金在不同热处理后的硅化物，以了解硅含量和热处理对硅化物形成和形貌的影响。
Although some work on microstructure of silicides in {gamma}-TiAl alloys has been done, it is restricted to the alloys containing high content of silicon ({approximately}3at.%). Furthermore, to the authors` knowledge, the crystal orientation relation between silicide and {beta} matrix that is stabilized to room temperature in the alloys containing transition elements (such as Nb, V, W, Cr), has not been reported yet. The present investigation was undertaken /to study the silicides in a {gamma}-TiAl base alloy with 2 at.% W addition containing 0.28--0.59 at.% Si after different heat treatments, to understand the effects of silicon content and heat treatment on the formation and morphology of silicides.