Article, 2011

Microstructure and Properties of a Hot Rolled-Quenched Cu-Cr-Zr-Mg-Si Alloy

Journal of Materials Engineering and Performance, ISSN 1544-1024, 1059-9495, Volume 21, 8, Pages 1800-1805, 10.1007/s11665-011-0084-0

Contributors

Xia, Chengdong 0000-0002-1828-9426 (Corresponding author) [1] [2] Wang, Ming-Pu (Corresponding author) [1] [2] Zhang, Wan [2] Kang, Zhanyuan [3] Jia, Yan-Lin 0000-0001-8284-2989 [2] Zhang, Rui [2] Yu, Hong-Chun [2] Xu, Gen-Ying [2]

Affiliations

  1. [1] Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, 410083, Changsha, People’s Republic of China
    2. [NORA names: China; Asia, East];
  2. [2] Central South University
    3. [NORA names: China; Asia, East];
  3. [3] Aarhus University Hospital
    4. [NORA names: Central Denmark Region; Hospital; Denmark; Europe, EU; Nordic; OECD]

Abstract

The microstructure and properties of a hot rolled-quenched Cu-Cr-Zr-Mg-Si alloy were investigated by transmission electron microscopy observations, micro-hardness and tensile strength testing, and electrical conductivity measurement. The results show that the hot rolling-quenching (HR-Q) process and subsequent thermomechanical treatments are successfully developed to manufacture Cu-Cr-Zr-Mg-Si alloy strips. Solution treatment can be finished during the HR-Q process, and good combinations of strength, conductivity, and softening resistance are obtained for the thermomechanically treated strips. Ordered fcc structure precipitates which exhibit a cube-on-cube orientation relationship with the matrix are responsible for the improvements of properties. The properties of hot rolled-quenched Cu-Cr-Zr-Mg-Si alloy strips can be further improved by two-step rolling and aging process. The improvements of properties are attributed to the interactions of precipitation strengthening and strain hardening.

Keywords

age, aging process, alloy, alloy strip, combination, combination of strength, conductivity, conductivity measurements, cube-on-cube orientation relationship, electrical conductivity measurements, electron microscopy observations, hardening, improvement, improvement of properties, interaction, matrix, measurements, micro-hardness, microscopy observations, microstructure, observations, orientation relationship, precipitation, precipitation strengthening, process, properties, relationship, resistance, results, rolling, softening, softening resistance, solution, solution treatment, strain, strain hardening, strength, strength test, strengthening, strips, structured precipitation, tensile, tensile strength test, test, thermomechanical treatment, thermomechanics, transmission, transmission electron microscopy observations, treatment

Funders

  • Education Department of Hunan Province

Data Provider: Digital Science

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