Effects of Heat Treatment on Microstructure and Mechanical Properties of As-extruded Mg-Zn-Y-Zr Alloy

Dayu, Wang; Du, Zhenmin; Hongjuan, Zhang

doi:10.1016/s1875-5372(18)30242-x

Cited by 3 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cu-Cr-Zr alloy is widely used in high-speed railway, large-scale integrated circuit, continuous casting mold, lead frame, and resistance welding due to its advantages of high strength, high conductivity and high wear-resistance [1]. In recent years, many institutions have made great breakthroughs in the preparation, processing and properties of copper alloys, such as Beijing General Research Institute of Non-ferrous Metals, Tsinghua University, Henan University of Science and Technology, Luoyang Copper Processing Plant and Jiangsu Metallurgical Research Institute [2][3][4][5][6][7]. Through the study of Cu-Cr alloys, Batawi et al [8] believed that the addition of Zr, Mg, Ti and Si to Cu-Cr alloys can ensure the strength of Cu-Cr alloys and the electrical conductivity of the alloys are maximized.…”

Section: Introductionmentioning

confidence: 99%

Research on microstructure and properties of Cu-0.41%Cr-0.20%Zr alloy after solution-aging treatment

Zhao¹,

Wang²,

Meng³

et al. 2023

Vib. proced.

View full text Add to dashboard Cite

The phase analysis of Cu-0.41%Cr-0.20%Zr alloy treated by vacuum melting + solid solution + aging was carried out by means of SEM, TEM, EDXS and XRD. The results show that there are three phases in the alloy, namely the copper matrix phase, the chrome-rich phase and the zirconium-rich phase. The distribution of phase size is bimodal. The coarse phase size is microns scale, and the main components are elemental chromium and Cu5Zr, which are formed during the casting process and are not easy to dissolve in the subsequent aging process. The fine phase size is nanometer scale, and the composition is ordered bcc pure chromium and Cu5Zr. There is no chromium and zirconium intermediate phase. Under this condition, the volume fraction of precipitated phase is about 30 %. The heat treatment process can be further optimized by increasing the aging temperature, lengthening the aging time or adopting the second aging method.

show abstract

Section: Introductionmentioning

confidence: 99%