Characterization Of An Equal Channel Angular Pressed Al-Zn-In Alloy

Archives of Metallurgy and Materials

T. Chairuangsri¹  C. Banjongprasert²  C. Domrong²  A. Jak-Ra²  U. Patakham³  W. Pongsaksawad³ 

[1] DEPARTMENT OF INDUSTRIAL CHEMISTRY, FACULTY OF SCIENCE, CHIANG MAI UNIVERSITY, CHIANG MAI 50200, THAILAND;DEPARTMENT OF PHYSICS AND MATERIALS SCIENCE, FACULTY OF SCIENCE, CHIANG MAI UNIVERSITY, CHIANG MAI 50200, THAILAND;NATIONAL METAL AND MATERIALS TECHNOLOGY CENTER, NATIONAL SCIENCE AND TECHNOLOGY DEVELOPMENT AGENCY, PATHUM THANI 12120, THAILAND

关键词: Keywords: Aluminum alloys;    Equal channel angular pressing;    Severe plastic deformation;    Electron backscatter diffraction;   

DOI  :  10.1515/amm-2015-0224

学科分类：金属与冶金

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

【 摘 要 】

Equal channel angular pressing (ECAP) is a technique that creates a high accumulated strain in metals and results in ultrafine-grained structure. In this study, Al-5Zn-0.02In was processed by ECAP at a room temperature using route Bc through an ECAP die (press angle of Φ = 100° and Ψ = 20°). The samples were subjected to ECAP with 1, 2, 3 and 4 passes. The processed specimens were characterized using electron backscatter diffraction (EBSD). The results confirmed the grain refinement of the alloy after ECAP to an average grain size less than 5 μm after 4-pass ECAP. The microhardness test shows that the hardness increased with the number of passes. The hardness of the cross-sectional area of the sample was similar to that tested along the pressing direction.

【 授权许可】

Unknown