OALib Journal期刊
ISSN: 2333-9721
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快速凝固Al-Fe-Ti-C合金的显微结构及退火过程中的相变
, PP. 133-138
Keywords: 快速凝固,Al-Fe-Ti-C合金,显微结构,退火
Abstract:
研究了快速凝固Al-Fe-Ti-C合金的显微结构及退火过程中的相变。初始快凝态组织由α-Al微胞晶组成,在胞晶边界分布着较大并拉长的非晶相;在胞晶内部则为细小弥散的球状亚稳Al_6Re相(底心正交结构),Ti和C全部过饱和固溶于α-Al中。当773K退火5h时,非晶相转变为α_T-AlFeSi相(斜方结构),Al_6Fe相部分转变为片状Al_3Fe相(底心单斜结构),部分长大但仍保持球状和底心正方结构过饱和固溶于α-Al基体中的Ti和C则以TiC形式弥散析出。
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