Evolution Of Precipitate Morphology During Extrusion In Mg ZK60A Alloy

Archives of Metallurgy and Materials

B. Ahn¹  G.A. Lee¹  J. Park²  M. Kawasaki⁴  K.H. Jung⁴ 

[1] BD GROUP, KOREAN INSTITUTE OF INDUSTRIAL TECHNOLOGY, INCHEON, KOREA;DEPARTMENT OF ENERGY SYSTEMS RESEARCH, AJOU UNIVERSITY, SUWON, KOREA;DIVISION OF MATERIALS SCIENCE AND ENGINEERING, HANYANG UNIVERSITY, SEOUL, KOREA;METAL FORMING TECHNOLOGY R&

关键词: Keywords: magnesium alloy;    ZK60A;    precipitation;    extrusion;   

DOI  :  10.1515/amm-2015-0145

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

In this study, a continuously casted ZK60A magnesium alloy (Mg-Zn-Zr) was extruded in two different extrusion ratios, 6:1 and 10:1. The evolution of precipitates was investigated on the two extruded materials and compared with that of as-casted material. The microstructural analysis was performed by electron backscatter diffraction and transmission electron microscopy, and the compositional information was obtained using energy-dispersive X-ray spectroscopy. Several distinct morphologies of precipitates were observed, such as dot, rod, and disk shaped. The formation mechanisms of those precipitates were discussed with respect to the heat and strain during the extrusion process.

【 授权许可】

Unknown