A β-titanium alloy with extra high strain-hardening rate: Design and mechanical properties
A β-titanium alloy with extra high strain-hardening rate: Design and mechanical properties
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DOI：
10.1016/j.scriptamat.2015.11.020
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发表时间：
2016-03-15
影响因子：
6
通讯作者：
Prima, F.
中科院分区：
文献类型：
--
作者：
Brozek, C.;Sun, F.;Prima, F.
本文设计了一种基于Ti-Cr-Sn体系的新型亚稳钛合金，具有极高的加工硬化率和大于035的均匀变形。通过基于“d电子设计方法”的稳定性映射方法和Bo/Md图的未开发区域来指导组合设计。详细的变形机理分析表明，相变诱发塑性（TRIP）和孪生诱发塑性（TWIP）共同作用，形成了复杂的微观组织网络，并引起了明显的运动硬化。(C) 2015 Elsevier Ltd.版权所有。
In this paper, a new beta-metastable titanium alloy, based on the Ti-Cr-Sn system, displaying both an extremely high work hardening rate and a uniform deformation larger than 035, was designed and successfully tested. The compositional design was guided through a stability mapping approach based on the "d-electron design method" and using an unexploited region of the Bo/Md map. Detailed analysis of deformation mechanisms shows combined transformation-induced plasticity (TRIP) and twinning-induced plasticity (TWIP) effects, resulting in a complex network of microstructural features and giving rise to marked kinematic hardening. (C) 2015 Elsevier Ltd. All rights reserved.