Enhancement of athermal α" martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation
Enhancement of athermal α" martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation
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DOI：
10.1016/j.scriptamat.2012.03.011
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发表时间：
2012-07-01
影响因子：
6
通讯作者：
Maeda, Takashi
中科院分区：
文献类型：
--
作者：
Akanuma, Toshiyuki;Matsumoto, Hiroaki;Maeda, Takashi
本文从化学热力学的角度探讨了高速热变形引起的Ti-10V-2Fe-3Al合金的非热α -马氏体相变的起源，以及变形引起的蓄能变化。马氏体相变起始温度（M-s）的取值受各种显微组织因素的强烈影响。这项工作表明，高速变形引起的高位错密度积累，大于10(15)m(-2)，导致非热α“马氏体转变的增强。(C) 2012材料学报Elsevier Ltd.出版。版权所有。
This work examines the origin of the athermal alpha" martensitic transformation in Ti-10V-2Fe-3Al alloys arising from high-speed hot deformation on the basis of chemical thermodynamics and the change in stored energy introduced by deformation. The value of the martensitic transformation starting temperature (M-s) is strongly affected by various microstructural factors. This work reveals that a high accumulation of dislocation density, greater than 10(15) m(-2), arising from high-speed deformation, resulted in an enhancement of athermal alpha" martensitic transformations. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.