中文版 | English
Title

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

Author
Publication Years
2023-01-20
DOI
Source Title
ISSN
1005-0302
EISSN
1941-1162
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 mu m in size. Ageing of the nanocomposite at 600 degrees C for 1 h enabled precipitation of two types of nanoparticles. One is coarser Fe nanoprecipitates with body-centered cubic (BCC) structure and diam-eter of 10 0-30 0 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. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Others
Funding Project
Australia Research Council Discovery Project[DP210103162]
WOS Research Area
Materials Science ; Metallurgy & Metallurgical Engineering
WOS Subject
Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS Accession No
WOS:000830896400006
Publisher
Scopus EID
2-s2.0-85134824278
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttps://kc.sustech.edu.cn/handle/2SGJ60CL/359501
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
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.