Micro structural Study of Equal-Channel Angular Pressing (ECAP) performed and Ultra Fine Grained of Nickel Reinforced Aluminium 7075 Alloy Composites

International Conference on Mechanical, Materials and Renewable Energy

机械制造;材料科学;能源学

Vitala, H.R.^1 ; Dileep, B.P.^2 ; Ravi Kumar, V.^2

Department of Mechanical Engineering, SJBIT, Bengaluru, India^1

Department of Mechanical Engineering, Amrita University, Bengaluru, India^2

关键词: Liquid metallurgies;    Micro-structural;    Microstructure and mechanical properties;    Percentage of reinforcements;    Severe plastic deformations;    Ultra-fine grained ( UFG);    Ultra-fine-grained;    X-ray diffraction techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/377/1/012032/pdf
DOI  :  10.1088/1757-899X/377/1/012032

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Microstructure and mechanical properties of equal-channel angular pressing (ECAP) processed and ultrafine grained (UFG) of nickel reinforced aluminium 7075 alloy composites were investigated. The composites were prepared using liquid metallurgy technique. The content of nickel in the composition was varied from 2 to 8% (by weight) in steps of 2%. The ECAP processing was carried out using die with an intersecting channel angle of 120°. Pin-on disc equipment was used for wear testing and X-Ray Diffraction Technique (XRD) was used to confirm the percentage of reinforcement of in the composites. This study shows that severe plastic deformation has significantly improved the mechanical properties of nickel reinforced aluminium 7075 alloy composites compared to an alloy.