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Title: Conductive nanolamellar Cu/martensite wire with high strength

Abstract

Cu wires can be greatly strengthened without losing much conductivity if a continuous nanolamellar structure with Cu and a strong second constituent is achieved. Here, we report on a nanolamellar Cu/steel wire fabricated by repetitive hot-pressing, forging, rolling and subsequent wire drawing. Austenization and quenching in liquid nitrogen resulted in a Cu/martensite structure, exhibiting tensile strength of 1220 MPa. The electrical conductivity of the wire was measured to be about 60% International Annealed Copper Standard (IACS), which was comparable with Cu/Fe fabricated by alloying and casting. In situ tensile tests under high energy X-ray diffraction were utilized to explore the deformation behavior of the wire. It was discovered that the martensite carried about 60% of the load, accounting for the high strength.

Authors:
 [1]; ORCiD logo [1];  [1];  [2];  [1]
  1. China Univ. of Petroleum, Beijing (China)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Lemont, IL (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1504479
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Materials Letters
Additional Journal Information:
Journal Volume: 229; Journal Issue: C; Journal ID: ISSN 0167-577X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; High strength and conductivity; In situ synchrotron X-ray diffraction; martensite; multilayer structure; nanocomposites

Citation Formats

Ru, Yadong, Yu, Kaiyuan, Guo, Fangmin, Ren, Yang, and Cui, Lishan. Conductive nanolamellar Cu/martensite wire with high strength. United States: N. p., 2018. Web. doi:10.1016/j.matlet.2018.07.028.
Ru, Yadong, Yu, Kaiyuan, Guo, Fangmin, Ren, Yang, & Cui, Lishan. Conductive nanolamellar Cu/martensite wire with high strength. United States. doi:10.1016/j.matlet.2018.07.028.
Ru, Yadong, Yu, Kaiyuan, Guo, Fangmin, Ren, Yang, and Cui, Lishan. Sat . "Conductive nanolamellar Cu/martensite wire with high strength". United States. doi:10.1016/j.matlet.2018.07.028. https://www.osti.gov/servlets/purl/1504479.
@article{osti_1504479,
title = {Conductive nanolamellar Cu/martensite wire with high strength},
author = {Ru, Yadong and Yu, Kaiyuan and Guo, Fangmin and Ren, Yang and Cui, Lishan},
abstractNote = {Cu wires can be greatly strengthened without losing much conductivity if a continuous nanolamellar structure with Cu and a strong second constituent is achieved. Here, we report on a nanolamellar Cu/steel wire fabricated by repetitive hot-pressing, forging, rolling and subsequent wire drawing. Austenization and quenching in liquid nitrogen resulted in a Cu/martensite structure, exhibiting tensile strength of 1220 MPa. The electrical conductivity of the wire was measured to be about 60% International Annealed Copper Standard (IACS), which was comparable with Cu/Fe fabricated by alloying and casting. In situ tensile tests under high energy X-ray diffraction were utilized to explore the deformation behavior of the wire. It was discovered that the martensite carried about 60% of the load, accounting for the high strength.},
doi = {10.1016/j.matlet.2018.07.028},
journal = {Materials Letters},
number = C,
volume = 229,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
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