The Equal Channel Angular Extrusion Process of Multiphase High Strength Aluminium Bronze /Proces Równokanałowego Wyciskania Kątowego Wysokowytrzymałych Wielofazowych Brązów Aluminiowych

Archives of Metallurgy and Materials

K. Radwański¹  R. Kuziak¹  T. Skubiszewski²  M. Hawryluk²  Z. Gronostajski²  M. Zwierzchowski² 

[1] INSTITUTE FOR FERROUS METALLURGY, 44-100 GLIWICE, 12-14 K. MIARKI, POLAND;WROC?AW UNIVERSITY OF TECHNOLOGY, INSTITUTE OF PRODUCTION ENGINEERING AND AUTOMATION, 50-371 WROC?AW, 5 IGNACEGO ?UKASIEWICZA STR., POLAND

关键词: Keywords: aluminium bronzes;    ECAP;    strain;    microstructure;    grain size;   

DOI  :  10.2478/v10172-012-0099-z

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 aim of the research was to determine the deformation condition of ECAP process of multiphase high strength aluminium bronze BA1032. The studies have indicated that it is possible to deform multiphase aluminium bronze BA1032 in the ECAP process at a temperature of 400°C and die angle Φ =110°. The deformation of the bronzes at lower temperatures encounters some difficulties - cracks appear which make repeated ECAP impossible. The cracks appear on the top surface of the samples where it contacts the surface of the outlet channel. FEM simulations show that the largest plastic strains occur in this area. The proposed ECAP method of large plastic deformations as applied to the investigated aluminium bronzes makes it possible to obtain very strong refinement especially of eutectoid α + γ2.

【 授权许可】

Unknown