Thermo-Mechanical Processing of Rapidly Solidified 5083 Aluminium Alloy - Structure and Mechanical Properties

Archives of Metallurgy and Materials

T. Tokarski¹ 

[1] AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, FACULTY OF NON-FERROUS METALS, AL. A. MICKIEWICZA 30, 30-059 KRAKÓW, POLAND;

关键词: Key words:: Rapid solidification;    Al-Mg alloy;    thermo-mechanical treatment;   

DOI  :  10.1515/amm-2015-0028

学科分类：金属与冶金

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

【 摘 要 】

Aluminium-magnesium 5083 alloy was rapidly solidified by means of melt spinning technique and plastically consolidated during subsequent hot extrusion process. As a result, rods 8 mm in diameter were obtained. Structure of as-extruded material is characterized by ultra-fined grains, which influences on increasement of mechanical properties of the material. The strengthening effect was further enhanced by application of thermo-mechanical treatment consist of cold rolling combined with isothermal annealing. As a result, reduction of grain size from ∼710 nm to ∼270 nm as well as enhancement of yield stress (330 MPa to 420 MPa) and ultimate tensile strength (410 MPa to 460 MPa) were achieved. Based on received results Hall-Petch coefficients (σ0, k) for 5083 RS material were determined.

【 授权许可】

Unknown