journal article·2017-02

Microstructural Evolution and Dynamic Recrystallization Behavior of β–γ TiAl‐based Alloy during Hot Compression

Hai Tao Jiang, Shang Wu Zeng, Shi Wei Tian, Bo Wu, Ai Min Zhao, Zhen Hai Xia

Advanced Engineering Materials· Volume 19· Issue 2
Publisher page

Abstract

In this paper, the hot deformation behavior of a TNM TiAl‐based alloy (Ti–44.45Al–3.80Nb–1.01Mo–0.29Si–0.14B) is investigated via isothermal compression tests. The experimental results demonstrate that the critical strain for dynamic recrystallization gradually decreases with increasing deformation temperature. At the initial stage of the low‐temperature deformation process, the deformation is mainly caused by dislocation glide in the γ and β phases. When the deformation reaches a certain level, dislocation glide in the β and the DRX γ phases dominates the deformation. In the high‐temperature deformation process, the deformation is the result of dislocation glide in the α and β phases.
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Research context

OpenAlex topics: Intermetallics and Advanced Alloy Properties · Titanium Alloys Microstructure and Properties · Microstructure and mechanical properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Engineering Technology University of Science and Technology Beijing Beijing 100083 China

Beijing Guowang Fuda Science & Technology Development Co., Ltd. Beijing 100070 China

Department of Materials Science and Engineering University of North Texas North Texas Discovery Park, 3940 North Elm St., Suite E‐132 Denton TX 76203 USA

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