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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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金属合金等温相变的体激活能及相变机制II.？β黄铜等温相变
, PP. 32-36
Keywords: 片状α1(贝氏体),棒状α,体激活能,马氏体样切变,界面控制相变,β黄铜
Abstract:
与钢相似,β黄铜等温处理获得的片状α1(贝氏体)和棒状α都具有自己的C曲线;各转变初期均能获单一相,而转变中、后期通常可获相邻两相的复合体.必须用单一相和Arrhenius关系求相变产物的体激活能.用体激活能、相的形貌和体自由能变化相结合能可诠释下述论点片状α1(贝氏体)是溶质原子扩散控制下母相β'中的贫溶质区,进行“军队型”原子无扩散马氏体样切变相变;棒状α是溶质原子扩散控制下母相β'中的最贫溶质区,发生“平民型”原子无扩散界面控制相变.
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