Improvement in Strength and Ductility of Asymmetric-Cryorolled Copper Sheets Under Low-Temperature Annealing

Authors

Hai Liang Yu, University of WollongongFollow
Qinglin Du, Central South University
Ajit R. Godbole, University of WollongongFollow
Cheng Lu, University of WollongongFollow
Charlie Kong, University of New South Wales

RIS ID

129964

Publication Details

Yu, H., Du, Q., Godbole, A., Lu, C. & Kong, C. (2018). Improvement in Strength and Ductility of Asymmetric-Cryorolled Copper Sheets Under Low-Temperature Annealing. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 49 (10), 4398-4403.

Abstract

2018, The Minerals, Metals & Materials Society and ASM International. Ultrafine-grained copper sheets have potential micro-electro-mechanical applications. Copper sheets were fabricated using asymmetric rolling and asymmetric cryorolling, respectively, and they were annealed at 373 K for 1 hour. The asymmetric-cryorolled sheet has higher strength compared to the asymmetric-rolled sheet. Low-temperature annealing results in improved strength and ductility for the asymmetric-cryorolled sheet, while the strength was reduced for the asymmetric-rolled sheet. The asymmetric-cryorolled sheets have better thermal stability compared to asymmetric-rolled sheets due to their laminate structure.