Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion

Liming Yao; Zhongmin Xiao; Zhiongsheng Hoo; Chao Tang; Jing Qiao; Yanmei Zhang

doi:10.1080/21663831.2023.2250826

Chinese

您当前的位置：

首页 >

文章列表页 >

Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion

Original Reports | 更新时间：2026-08-19

- Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion
- Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion
- 材料研究快报（英文） 2023年11卷第10期页码：814-820
- 作者机构：
  
  1. a School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore Singapore
  2. c State Key Laboratory of Robotics and Systems Harbin Institute of Technology
  3. a School of Mechanical and Aerospace Engineering Nanyang Technological University
  4. d Institute of High Performance Computing (IHPC) Agency for Science Technology and Research (A*STAR)
  5. b Zhengzhou Research Institute of Harbin Institute of Technology Zhengzhou China
  6. e School of Materials Science and Engineering Harbin Institute of Technology
  7. f College of Aerospace Engineering Chongqing University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2250826
  中图分类号：
- 网络首发：2023-09-01，
  
  纸质出版：2023
- 稿件说明：
移动端阅览
Liming Yao, Zhongmin Xiao, Zhiongsheng Hoo, 等. Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion[J]. 材料研究快报（英文）, 2023,11(10):814-820.

Liming Yao, Zhongmin Xiao, Zhiongsheng Hoo, et al. Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion[J]. Materials Research Letters, 2023, 11(10): 814-820.
Liming Yao, Zhongmin Xiao, Zhiongsheng Hoo, 等. Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion[J]. 材料研究快报（英文）, 2023,11(10):814-820. DOI： 10.1080/21663831.2023.2250826.

Liming Yao, Zhongmin Xiao, Zhiongsheng Hoo, et al. Mechanism analysis of grain growth dominated by alloy composition gradients during powder bed fusion[J]. Materials Research Letters, 2023, 11(10): 814-820. DOI： 10.1080/21663831.2023.2250826.

摘要

Abstract

multi-physics simulation model has been established to investigate the influence of Laser powder bed fusion parameters on the spatial composition distribution and grain growth mechanism of the single-track printed dissimilar alloys. Our study shows that alloy composition gradient isosurfaces can be used to visualize the spatial distribution of alloy composition for miscible dissimilar alloys. When the melt pool aspect ratio changes from large to small

the grain growth transitions from the temperature gradient mode to composition gradient mode and then to the mixed mode. Our experimental observations show that in extreme cases

the curved grain angle can reach 272°.

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

Dislocation network mediated grain boundary engineering in an additively manufactured titanium alloy

Bi addition increases strength and strain-softening behavior in SAC305

Mechanism of the reversed yield asymmetry in a strong-textured Mg-RE alloy at room temperature

Microstructural heterogeneity enabled balance of room- and high-temperature properties in high-volume intermetallics reinforced aluminum alloys

Evading strength-corrosion tradeoff in laser-melted Al alloys through twin-related grain boundary engineering