Effect of Pouring Temperatures on Porosity and Mechanical Properties of Gravity Die Casting Magnesium Alloy

Conference on Innovation in Technology and Engineering Science

工业技术（总论）

Nanda, I.P.^1 ; Jahare, M.H.^2 ; Idris, M.H.^2 ; Kumar, S.B.^2 ; Hassim, M.H.^2 ; Arafat, A.^3

Department of Mechanical Engineering, Universitas Andalas, Padang, Indonesia^1

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor, Malaysia^2

Department of Mechanical Engineering, Universitas Negeri Padang, Padang, Indonesia^3

关键词: Casting magnesium alloy;    Elongation percentage;    Gas entrapments;    Pouring temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/602/1/012093/pdf
DOI  :  10.1088/1757-899X/602/1/012093

学科分类：工业工程学

来源: IOP

【 摘 要 】

Gas entrapment and porosities are the two common drawbacks associated with gravity die process. In this study, the effect of gravity die different pouring temperatures at 680, 710, 740, and 780 on die casting material particularly AZ91D mechanical properties namely; tensile strength, yield strength, elongation percentage, and porosity percentage were investigated. The result showed that higher strength was obtained at lower pouring temperature. The highest porosity percentage was observed at the areas nearer to the riser, and lower porosity percentage was obtained nearer the ingate. The highest tensile strength, yield strength, percentage of elongation and less percentage of porosity was obtained for the specimens taken nearer to the ingate which is the starting point of melt entry into the cavity.