Conductive nanolamellar Cu/martensite wire with high strength

Yadong Ru; Kaiyuan Yu; Fangmin Guo; Yang Ren; Lishan Cui

doi:10.1016/j.matlet.2018.07.028

Conductive nanolamellar Cu/martensite wire with high strength

Yadong Ru
, Kaiyuan Yu^*
, Fangmin Guo
, Yang Ren
, Lishan Cui

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

Cu wires can be significantly strengthened without losing much conductivity if a continuous nanolamellar structure with Cu and a strong second constituent is achieved. 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 found that the martensite carried about 60% of the load, accounting for the high strength.

Original language	English
Pages (from-to)	344-347
Journal	Materials Letters
Volume	229
DOIs	https://doi.org/10.1016/j.matlet.2018.07.028
Publication status	Published - 15 Oct 2018
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

High strength and conductivity
In situ synchrotron X-ray diffraction
Martensite
Multilayer structure
Nanocomposites

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title = "Conductive nanolamellar Cu/martensite wire with high strength",

abstract = "Cu wires can be significantly strengthened without losing much conductivity if a continuous nanolamellar structure with Cu and a strong second constituent is achieved. 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 found that the martensite carried about 60\% of the load, accounting for the high strength.",

keywords = "High strength and conductivity, In situ synchrotron X-ray diffraction, Martensite, Multilayer structure, Nanocomposites",

author = "Yadong Ru and Kaiyuan Yu and Fangmin Guo and Yang Ren and Lishan Cui",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1016/j.matlet.2018.07.028",

language = "English",

volume = "229",

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journal = "Materials Letters",

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TY - JOUR

T1 - Conductive nanolamellar Cu/martensite wire with high strength

AU - Ru, Yadong

AU - Yu, Kaiyuan

AU - Guo, Fangmin

AU - Ren, Yang

AU - Cui, Lishan

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2018/10/15

Y1 - 2018/10/15

N2 - Cu wires can be significantly strengthened without losing much conductivity if a continuous nanolamellar structure with Cu and a strong second constituent is achieved. 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 found that the martensite carried about 60% of the load, accounting for the high strength.

AB - Cu wires can be significantly strengthened without losing much conductivity if a continuous nanolamellar structure with Cu and a strong second constituent is achieved. 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 found that the martensite carried about 60% of the load, accounting for the high strength.

KW - High strength and conductivity

KW - In situ synchrotron X-ray diffraction

KW - Martensite

KW - Multilayer structure

KW - Nanocomposites

UR - https://www.scopus.com/pages/publications/85049907665

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85049907665&origin=recordpage

U2 - 10.1016/j.matlet.2018.07.028

DO - 10.1016/j.matlet.2018.07.028

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 229

SP - 344

EP - 347

JO - Materials Letters

JF - Materials Letters

ER -

Conductive nanolamellar Cu/martensite wire with high strength

Abstract

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Research Keywords

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