Prediction of the martensite start temperature for β titanium alloys as a function of composition
Prediction of the martensite start temperature for β titanium alloys as a function of composition
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DOI：
10.1016/j.scriptamat.2008.12.034
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发表时间：
2009-04-01
影响因子：
6
通讯作者：
van der Zwaag, Sybrand
中科院分区：
文献类型：
--
作者：
Neelakantan, Suresh;Rivera-Diaz-del-Castillo, Ret;van der Zwaag, Sybrand
提出了一种预测钛合金马氏体起始温度的热力学模型。利用Ghosh-Olson方法对马氏体成核建模，估计了β相向马氏体转变的趋势。对二元合金的能量学和M(s)温度进行了较准确的预测。提出了一个预测多组分β合金M(s)温度的简明公式。将新方程与评价β稳定性的经典Mo等效准则进行了比较。(C) 2008材料学报Elsevier Ltd.出版。版权所有。
A thermodynamics-based model to predict the martensite start temperature of beta titanium alloys is presented. The tendency of the beta phase to transform into martensite is estimated by applying the Ghosh-Olson approach to martensite nucleation modelling. The energetics and M(s) temperature for binary alloys are predicted with good accuracy. A succinct formula predicting M(s) temperature in multicomponent beta alloys is presented. The new equation is compared to the classical Mo equivalence criterion for assessing beta stability. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.