Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing

Aitang Xue; Xin Lin; Lilin Wang; Xufei Lu; Lukai Yuan; Hanlin Ding; Weidong Huang

doi:10.1080/21663831.2022.2115323

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Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing

Original Reports | 更新时间：2026-08-19

- Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing
- Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing
- 材料研究快报（英文） 2023年11卷第1期页码：60-68
- 作者机构：
  
  1. a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi’an Shaanxi People’s Republic of China
  2. b Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design MIIT China Northwestern Polytechnical University
  3. c International Centre for Numerical Methods in Engineering Universidad Politécnica de Cataluña
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2115323
  中图分类号：
- 网络首发：2022-09-20，
  
  纸质出版：2023
- 稿件说明：
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Aitang Xue, Xin Lin, Lilin Wang, 等. Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing[J]. 材料研究快报（英文）, 2023,11(1):60-68.

Aitang Xue, Xin Lin, Lilin Wang, et al. Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing[J]. Materials Research Letters, 2023, 11(1): 60-68.
Aitang Xue, Xin Lin, Lilin Wang, 等. Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing[J]. 材料研究快报（英文）, 2023,11(1):60-68. DOI： 10.1080/21663831.2022.2115323.

Aitang Xue, Xin Lin, Lilin Wang, et al. Achieving fully-equiaxed fine β-grains in titanium alloy produced by additive manufacturing[J]. Materials Research Letters, 2023, 11(1): 60-68. DOI： 10.1080/21663831.2022.2115323.

摘要

Abstract

The achievement of fine equiaxed β grain with conventional intragranular (α-Ti+β-Ti) microstructure in additive manufacturing titanium alloy remains a big challenge. We conquer this challenge by synergistically controlling β-grains during both solidification and subsequent thermal-cycles of laser directed energy deposition (DED)

and a solution + quenching heat-treatment. Both the strength and plasticity of heat-treated Ti6Al4V3Ni0.05B are superior to those reported new DED titanium alloy and comparable to that of DED Ti6Al4V

because of the fine-equiaxed β-grains with intragranular (α-Ti+β-Ti) microstructure. These findings provide new insight into the grain structure control and the composition design of AM titanium alloy.

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相关机构

a National Key Lab of Aerospace Power System and Plasma Technology Air Force Engineering University

b School of Mechanical Engineering Xi’an Jiao Tong University

c Beijing Aerospace Propulsion Institute & Laboratory of Science and Technology on Cryogenic Liquid Propulsion

d State Key Laboratory of Mechanics and Control for Aerospace Structures & Institute for Frontier Science & College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics

a National Engineering Research Center of Near-net-shape Forming for Metallic Materials Guangdong Provincial Key Laboratory for Processing and Forming of Advanced Metallic Materials South China University of Technology

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