Analysis of Densification Process and Structure of PM Al-Mg-Si-Cu-Fe and Al-Zn-Mg-Cu-Sn Alloys

Archives of Metallurgy and Materials

M. Actis Grande¹  R. Bidulský²  J. Bidulská² 

[1] DEPARTMENT OF APPLIED SCIENCE AND TECHNOLOGY, POLITECNICO DI TORINO, ALESSANDRIA CAMPUS, VIALE T. MICHEL 5, 15121 ALESSANDRIA, ITALY;DEPARTMENT OF METALS FORMING, FACULTY OF METALLURGY, TECHNICAL UNIVERSITY OF KOŠICE, VYSOKOŠKOLSK´A 4, 04200 KOŠICE, SLOVAKIA

关键词: Keywords: Powder Metallurgy;    Aluminium Alloy;    Compressibility;    Microstructure;   

DOI  :  10.2478/amm-2014-0003

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 paper is focused on the role of the pressing pressure on the densification behaviour of PM aluminium alloys. Commercially aluminium based powders Al-Mg-Si-Cu-Fe and Al-Zn-Mg-Cu-Sn were used as materials to be investigated. The apparent density of the powder mixes was determined according to MPIF St. 04. A set of cylinder test specimen 55x10x10 mm3 was uniaxially pressed in a floating hardened steel die. Compaction pressures ranged from 50 MPa up to 700 MPa. Considering the densification of metal powders in uniaxial compaction, quantification of aluminium compaction behaviour was performed. The compressibility behaviour was evaluated, considering the effect on specimens, as well as on their microstructure. The development of compressibility values with pressing pressure enables to characterize the effect of particles geometry and matrix plasticity on the compaction process.

【 授权许可】

Unknown