中文版 | English
Title

Laser powder bed fusion of copper matrix iron particle reinforced nanocomposite with high strength and high conductivity

Author
Corresponding AuthorZhang, Ming-Xing
Publication Years
2023-01-20
DOI
Source Title
ISSN
1005-0302
Volume134Pages:50-59
Abstract
Liquid-liquid phase separation, and the resulted solute segregation, during conventional solidification have been a long-term challenge to produce copper (Cu)-iron (Fe) immiscible composites with high strength and high conductivity. The present work reports an effective solution to this issue through laser powder bed fusion (L-PBF) in-situ alloying of Cu-8 wt.% Fe. Microstructure observation showed that the fast cooling within micron-scale melt pools fully eliminated the Fe segregation and therefore the L-PBF fabricated nanocomposite achieved the homogeneous microstructure, which featured equiaxed fine grains around 1 µm in size. Ageing of the nanocomposite at 600°C for 1 h enabled precipitation of two types of nanoparticles. One is coarser Fe nanoprecipitates with body-centered cubic (BCC) structure and diameter of 100-300 nm, mainly distributing along grain boundaries. The other is smaller Fe nanoprecipitates with face-centered cubic (FCC) structure and diameter of 10-35 nm, being observed within the grains and having coherent interfaces with the Cu matrix. As a result, the aged Cu-Fe nanocomposite achieved tensile strength of 462.9±6.6 MPa with 30.4%±1.7% elongation to failure and 74.5% IACS (International Annealed Copper Standard) electrical conductivity. The formation mechanisms of the nanoprecipitates and the strengthening mechanisms of the nanocomposite are discussed.

© 2022

Indexed By
SCI ; EI
Language
English
SUSTech Authorship
Others
Funding Project
The authors from The University of Queensland thank Australian Microscopy & Microanalysis Research Facility at the Centre for Microscopy and Microanalysis (CMM), The University of Queensland for the facilities and technical assistance. The authors from The University of Queensland thank Australia Research Council Discovery Project (No. DP210103162) program for funding support.
WOS Accession No
WOS:000830896400006
Publisher
EI Accession Number
20223012421574
EI Keywords
Binary alloys ; Copper alloys ; Crystal structure ; Grain boundaries ; High strength alloys ; Iron alloys ; Metallic matrix composites ; Phase separation ; Precipitation (chemical) ; Segregation (metallography) ; Tensile strength ; Textures
ESI Classification Code
Metallurgy and Metallography:531 ; Metallurgy:531.1 ; Metallography:531.2 ; Copper Alloys:544.2 ; Iron Alloys:545.2 ; Thermodynamics:641.1 ; Nanotechnology:761 ; Chemical Operations:802.3 ; Solid State Physics:933 ; Crystal Lattice:933.1.1
ESI Research Field
MATERIALS SCIENCE
Data Source
EV Compendex
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/395679
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia; QLD 4072, Australia
2.Department of Materials Science and Engineering and Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials, Southern University of Science and Technology, Shenzhen; 518055, China
3.School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an; 710072, China
Recommended Citation
GB/T 7714
Liu, Yingang,Zhang, Jingqi,Sun, Qiang,et al. Laser powder bed fusion of copper matrix iron particle reinforced nanocomposite with high strength and high conductivity[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,134:50-59.
APA
Liu, Yingang.,Zhang, Jingqi.,Sun, Qiang.,Li, Meng.,Yan, Ming.,...&Zhang, Ming-Xing.(2023).Laser powder bed fusion of copper matrix iron particle reinforced nanocomposite with high strength and high conductivity.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,134,50-59.
MLA
Liu, Yingang,et al."Laser powder bed fusion of copper matrix iron particle reinforced nanocomposite with high strength and high conductivity".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 134(2023):50-59.
Files in This Item:
There are no files associated with this item.
Related Services
Fulltext link
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Export to Excel
Export to Csv
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Liu, Yingang]'s Articles
[Zhang, Jingqi]'s Articles
[Sun, Qiang]'s Articles
Baidu Scholar
Similar articles in Baidu Scholar
[Liu, Yingang]'s Articles
[Zhang, Jingqi]'s Articles
[Sun, Qiang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Yingang]'s Articles
[Zhang, Jingqi]'s Articles
[Sun, Qiang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.