Application of Workability Test to Spd Processing

Archives of Metallurgy and Materials

R. Bidulský¹  J. Tiža¹  M. Vlado¹  A. Kováčová¹  J. Bacsó¹  R. Kočiško¹  T. Kvačkaj¹  J. Bidulská¹ 

[1] Department of Metals Forming, Faculty of Metallurgy, Technical University of Košice, Slovakia

关键词: Keywords : compression test;    powder metallurgy;    fracture criteria;    ECAR;    Deform 3D;   

DOI  :  10.2478/amm-2013-0008

学科分类：金属与冶金

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

【 摘 要 】

The aluminium alloy with chemical conception AlMgSi prepared by PM (powder metallurgy) technology was used. The experiments such as a ring and compression test, ECAR (equal channel angular rolling) for determination of friction coefficient, stress-strain curves and material workability based on analytical methods (Freudenthal, Cockcroft-Latham and normalized Cockcroft-Latham criteria) were performed. Numerical simulations of sample processed by ECAR was carried out by a software Deform 3D with focus on the description of stress, strain fields and workability criteria (Cockcroft-Latham and normalized Cockcroft-Latham). The prediction of fracture formations in a real ECAR sample during processing conditions was also done.

【 授权许可】

Unknown