Effect Of Equal Channel Angular Pressing On The Microstructure And Mechanical Properties Of A356 Alloy

Salleh, Mohd Shukor and Mohamad Ishak, Nurul Naili and Yahaya, Saifudin Hafiz and Subramonian, Sivarao and Abdullah, A. (2018) Effect Of Equal Channel Angular Pressing On The Microstructure And Mechanical Properties Of A356 Alloy. Journal Of Advanced Manufacturing Technology, 12. pp. 23-39. ISSN 1985-3157

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Abstract

This work investigated the effect of equal channel angular pressing (ECAP)on the microstructure and mechanical properties of non-dendritic A356 alloy.This alloy was casted by cooling slope casting in order to produce a globular microstructure feedstock for ECAP process.After that,ECAP process was performed using 120° of die angle via route A for 2 passes at room temperature.The microstructure of the processed alloys was observed under an optical microscope (OM) and scanning electron microscope (SEM) whereas the mechanical properties of the alloy were validated using Vickers hardness test and tensile test.Microstructure observation showed that after 2 passes,the grain size was obviously refined to 35 µm from 75 µm in the as-cast sample.The mechanical properties of the alloy were ultimately improved in ECAP sample.The hardness of the ECAP sample increased as high as 77.6 HV as compared to the as-cast alloy which was 42.3 HV.The ultimate tensile strength also increased from 105 MPa to 237 MPa after 2 passes deformation.It was also discovered that the distribution of α-Al and eutectic phases were more homogeneous at the ECAP sample than using non-dendritic structure feedstock.

Item Type:	Article
Uncontrolled Keywords:	Equal Channel Angular Pressing; Aluminium Alloys; Mechanical Properties
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Manufacturing Engineering
Depositing User:	Mohd. Nazir Taib
Date Deposited:	14 Aug 2019 03:56
Last Modified:	27 Aug 2021 12:39
URI:	http://eprints.utem.edu.my/id/eprint/22948
Statistic Details:	View Download Statistic

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