Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting

Ahmad Zafari; Edward W. Lui; Kenong Xia

doi:10.1080/21663831.2020.1713244

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Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting

Original Report | 更新时间：2026-08-19

- Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting
- Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting
- 材料研究快报（英文） 2020年8卷第3期页码：117-122
- 作者机构：
  
  1. Department of Mechanical Engineering University of Melbourne
  2. Department of Mechanical Engineering University of Melbourne Melbourne Australia
  3. Centre for Additive Manufacturing School of Engineering RMIT University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2020.1713244
  中图分类号：
- 网络首发：2020-01-12，
  
  纸质出版：2020
- 稿件说明：
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Ahmad Zafari, Edward W. Lui, Kenong Xia. Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting[J]. 材料研究快报（英文）, 2020,8(3):117-122.

Ahmad Zafari, Edward W. Lui, Kenong Xia. Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting[J]. Materials Research Letters, 2020, 8(3): 117-122.
Ahmad Zafari, Edward W. Lui, Kenong Xia. Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting[J]. 材料研究快报（英文）, 2020,8(3):117-122. DOI： 10.1080/21663831.2020.1713244.

Ahmad Zafari, Edward W. Lui, Kenong Xia. Deformation-free geometric recrystallisation in a metastable β-Ti alloy produced by selective laser melting[J]. Materials Research Letters, 2020, 8(3): 117-122. DOI： 10.1080/21663831.2020.1713244.

摘要

Abstract

BSTRACTSuper-transus heat treatments conducted on an additively manufactured body-centred-cubic β-Ti alloy led to the formation of equiaxed β grains from an initially columnar structure. The grain structure was transformed thanks to a combination of Plateau-Rayleigh instability and grain growth driven by reduction in grain boundary surface area. This is a new type of geometric recrystallisation with no deformation involved. Other mechanisms proposed based on either deformation-induced recrystallisation or martensitic decomposition are dismissed owing to low dislocation density and absence of martensitic transformation in the alloy studied.

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相关机构

School of Materials Science and Engineering Beihang University

Department of Mechanical Engineering The University of Melbourne

a Engineering Research Center of Light-weight Materials and Components (MOE) Key Laboratory for Light-weight Materials Nanjing Tech University Nanjing People’s Republic of China

b Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites

c School of Materials Science and Chemical Engineering Harbin University of Science and Technology

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