Effect of grain boundary migration in Cu–Cr–Zr–Ti manufactured using different casting processes. Issue 13 (2nd September 2019)

• Record Type: Journal Article
• Authors: Gong, Liukui; Peng, Huaichao; Wan, Xiangyang; Chen, Huiming; Xie, Weibin; Wang, Hang; Yang, Bin
• Is Part Of: Materials science and technology. Volume 35:Issue 13(2019)
• Page Start: 1642
• Page End: 1650
• Publication Date: 2019-09-02
• Subjects: Cu–Cr–Zr–Ti -- casting -- tensile strength -- grain boundary migration -- recrystallization -- cold drawing -- solution treatment -- aging treatment -- recrystallization; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2019.1636179
• Languages: English
• ISSNs: 0267-0836

Abstract

ABSTRACT: Grain boundary migration in different casting processes directly affects the grain size of the ingot, which affects the mechanical properties of the alloy. In this study, Cu–Cr–Zr–Ti rods are manufactured using upward continuous casting and casting-extrusion processes followed by drawing. It is found that the strength of the upward continuous casting rods is 621 MPa, greater than that of the casting-extrusion rods 571 MPa, which is a result of different microstructure evolution during solution treatment. Calculations of the driving force and resistance of grain boundary migration were performed to explain the observations.