Evolution of Microstructure in Rolled Mg-Based Alloy. Textural Aspect / Ewolucja Mikrostruktury W Walcowanym Stopie Na Bazie Mg. Aspekt Teksturowy

Archives of Metallurgy and Materials

P. Kwaśniewski¹  M. Wróbel¹  P. Darłak²  P. Długosz²  J. T. Bonarski³  B. Kania³  P. Drzymała³ 

[1] AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, AL. A. MICKIEWICZA 30., KRAKÓW, POLAND;FOUNDRY RESEARCH INSTITUTE, 73 ZAKOPIA?SKA STR., KRAKÓW, POLAND;INSTITUTE OF METALLURGY AND MATERIALS SCIENCE PAS, 25 REYMONTA STR., 30-307 KRAKÓW, POLAND

关键词: Keywords: magnesium alloy;    plastic deformation;    pilger rolling;    mechanical twinning;    crystallographic texture;   

DOI  :  10.1515/amm-2015-0406

学科分类：金属与冶金

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

【 摘 要 】

Magnesium alloys are the lightest structural materials, which makes them particularly suitable for use in the aircraft and automotive industry. However, due to hexagonal close-packed crystal structure, resulting in insufficient number of independent slip systems, magnesium alloys exhibit poor formability at room temperature. Conventional methods of work hardening of magnesium alloys requires the temperature about 300°C, which favours simultaneously processes of thermal recovery and grain growth, but decreases beneficial microstructure strengthening effect. Thus, it is a crucial to undertake development of a technology for semi-finished magnesium alloys elements, which will ensure better mechanical properties of the final products by forming desirable microstructure. In the paper we present the development of crystallographic texture of the Mg-based alloy (Mg-AZ31) in the form of pipe extruded at 430°C and subjected to pilger rolling at relatively low temperature.

【 授权许可】

Unknown