In situ characterization of tensile behavior of laser rapid solidified Al–Si heterogeneous microstructures

Bingqiang Wei; Wenqian Wu; Dongyue Xie; Huai-Hsun Lien; Metin Kayitmazbatir; Amit Misra; Jian Wang

doi:10.1080/21663831.2021.1987346

Chinese

您当前的位置：

首页 >

文章列表页 >

In situ characterization of tensile behavior of laser rapid solidified Al–Si heterogeneous microstructures

Original Report | 更新时间：2026-08-19

- In situ characterization of tensile behavior of laser rapid solidified Al–Si heterogeneous microstructures
- Materials Research Letters Vol. 9, Issue 12, Pages: 507-515(2021)
- 作者机构：
  
  1. a Department of Mechanical and Materials of Engineering University of Nebraska-Lincoln,Lincoln
  2. b Department of Materials Science and Engineering University of Michigan
  3. b Department of Materials Science and Engineering University of Michigan Ann Arbor USA
  4. c Department of Mechanical Engineering University of Michigan Ann Arbor
  5. a Department of Mechanical and Materials of Engineering University of Nebraska-Lincoln Lincoln NE USA
  6. d Nebraska Center for Materials and Nanoscience University of Nebraska-Lincoln,Lincoln
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2021.1987346
  CLC：
- Online First：12 October 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
Bingqiang Wei, Wenqian Wu, Dongyue Xie, et al. In situ characterization of tensile behavior of laser rapid solidified Al–Si heterogeneous microstructures[J]. Materials Research Letters, 2021, 9(12): 507-515.
DOI：

Bingqiang Wei, Wenqian Wu, Dongyue Xie, et al. In situ characterization of tensile behavior of laser rapid solidified Al–Si heterogeneous microstructures[J]. Materials Research Letters, 2021, 9(12): 507-515. DOI： 10.1080/21663831.2021.1987346.

摘要

Abstract

Heterogeneous Al–Si microstructure comprising of sub-micron-scale Al dendrites and nanoscale Al–Si fibrous eutectic was fabricated by processing as-cast Al-20wt.%Si alloy using laser rapid solidification.

In situ

tension tests explored high tensile strength (∼600 MPa) and ductility (∼10%) and high strain hardening rate (∼7 GPa). Microstructural characterization revealed the plastic co-deformation mechanisms between soft Al dendrites and hard nanoscale Al–Si eutectic. The progression of plasticity in nanoscale Al–Si eutectic with increasing applied strain is accommodated by dislocation plasticity in the nano-Al channels and cracking Si nanofibers. The propagation of nano-cracks is suppressed by surrounding Al

retaining good ductility of the sample.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Ultrahigh strength and plasticity in laser rapid solidified Al–Si nanoscale eutectics

Thermo-mechanical-coupling-induced structural transformation and strain-hardening in Ti-V-Zr-Nb-Al multi-component alloys

Enhancing ductility and elevated-temperature strength of Ti2AlNb-based alloys via tailored lamellar heterostructure

Dual heterogeneity design in high-strength Cu–Ti alloys via powder metallurgy for enhanced ductility and conductivity

Achieving strength-ductility synergy in a single-phase TiVNbZr refractory high-entropy alloy via a reverse heterogeneous grain structure

Related Author

Huai-Hsun Lien

Jyoti Mazumder

Jian Wang

Amit Misra

Hengyong Yang

Chuangshi Feng

Zhou Guan

Hongquan Song

Related Institution

Materials Science and Engineering University of Michigan Ann Arbor

Materials Science and Engineering University of Michigan Ann Arbor MI USA

Mechanical Engineering University of Michigan Ann Arbor

Mechanical and Materials Engineering University of Nebraska-Lincoln

a Songshan Lake Materials Laboratory

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰