Microstructure and hardness performance of AA6061 aluminium composite using friction stir processing

International Conference on Innovative Technology, Engineering and Sciences 2018

工业技术;自然科学

Marini, C.D.^1 ; Fatchurrohman, N.^1

Faculty of Manufacturing Engineering, Universiti Malaysia Pahang, Malaysia^1

关键词: Aluminium composites;    Aluminium matrix composites;    Fine grain structure;    Friction stir processing;    Hardness profiles;    Homogenous dispersions;    Metal and alloys;    Reinforced material;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/342/1/012077/pdf
DOI  :  10.1088/1757-899X/342/1/012077

来源: IOP

【 摘 要 】

Rice husk ash (RHA) is an industrial waste that has become a potential reinforced material for aluminium matrix composite (AMCs) due to low cost and abundantly available resources. Friction stir processing (FSP) has been introduced as a method to modify surface properties of the metal and alloy including theirs composite as well. The present work reports the production and characterization of AA6061 and AA6061/5 vol% RHA using FSP using parameters rotation speed 1000 rpm and traversed speed 25 mm/min. The microstructure was studied using optical microscopy (OM). A homogenous dispersion of RHA particles was obtained in the composite. No agglomeration or segregation was observed. The produced composite exhibited a fine grain structure. An improvement in hardness profile was observed as AA6061/5 vol% RHA improves in hardness compared to FSPed of AA6061 without reinforcement.