Effect of roll-bonding temperature on the strength and electrical conductivity of an α-brass-clad Cu–1Cr alloy composite
- Авторы: Kang G.1, Song J.1, Hong S.1
-
Учреждения:
- Department of Advanced Materials Engineering
- Выпуск: Том 118, № 2 (2017)
- Страницы: 190-197
- Раздел: Strength and Plasticity
- URL: https://journals.rcsi.science/0031-918X/article/view/166910
- DOI: https://doi.org/10.1134/S0031918X17020041
- ID: 166910
Цитировать
Аннотация
Tri-layered α-brass-clad Cu–Cr-alloy composite plates were prepared by hot roll-bonding. Neither intermetallic-compound layers nor interface defects were observed at the interfaces in the as-rolled and heat-treated α-brass-clad Cu–Cr composite plates. The hardness of the as-rolled α-brass layer was greater than that of the Cu–Cr substrate, since the α-brass was strengthened by strain hardening more efficiently upon rolling. The hardness of the α-brass decreased appreciably upon annealing because of the recovery processes, whereas that of the Cu–Cr layer slightly increased after heat treatment at 450°C due to the precipitation strengthening. After the post-roll-bonding heat treatment at 450°C, the strength of the α-brass-clad Cu–Cr-alloy composite decreased with a significant increase in ductility. The electrical conductivity of the asroll-bonded α-brass clad Cu–Cr alloy composite (47–52% IACS) increased significantly (to 72–74% IACS) after the 1-h heat treatment. The strength and conductivity of the clad composite are dependent on the precipitation strengthening of Cu–Cr and recovery softening of α-brass in the course of the post-roll-bonding heat treatment.
Ключевые слова
Об авторах
G. Kang
Department of Advanced Materials Engineering
Email: sihong@cnu.ac.kr
Республика Корея, Daejeon, 305-764
J. Song
Department of Advanced Materials Engineering
Email: sihong@cnu.ac.kr
Республика Корея, Daejeon, 305-764
S. Hong
Department of Advanced Materials Engineering
Автор, ответственный за переписку.
Email: sihong@cnu.ac.kr
Республика Корея, Daejeon, 305-764