Experimental analysis and response surface optimization of the influence of Zn/Al mass ratio on the creep resistance and tensile properties of As-cast Mg-Zn-Al alloy

被引：2
作者：
Edoziuno F.O. [1 ,2 ]
Emereje P.O. [3 ]
Odoni B.U. [2 ]
Akaluzia R.O. [2 ]
Chukwurah N.C. [4 ]
机构：
[1] Department of Metallurgical and Materials Engineering, Nnamdi Azikiwe University, Awka
[2] Department of Metallurgical Engineering Technology, Delta State Polytechnic, Delta State, Ogwashi-Uku
[3] Department of Mechanical Engineering Technology, Delta State Polytechnic, Ogwashi-Uku
[4] Department of Chemical Engineering Technology, Delta State Polytechnic, Ogwashi-Uku
来源：
Journal of Alloys and Metallurgical Systems | 2023年 / 4卷
关键词：
Creep resistance; Mg-Zn-Al alloy; RSM optimization; Tensile properties; Thermal stability; Zn/Al ratio;
D O I：
10.1016/j.jalmes.2023.100033
中图分类号：
学科分类号：
摘要：
Mg-Zn-Al (ZA) alloys are intended to exhibit creep resistance and high temperature mechanical capabilities due to appropriate Zn/Al mass ratio control. The effect of altering Al concentration (1, 2, 3, 4, 5, 6) on the tensile and creep resistance properties of Mg-9Zn-xAl alloy was determined experimentally and quantitatively optimized using response surface method (RSM). It was observed that 2 wt% Al improves both room and elevated temperature tensile strength, and ductility of the considered ZA alloy. The creep rate sharply increased when the mass fraction of aluminum rose above 4 wt%. For the purpose of forecasting the tensile and creep properties of the ZA alloy at any given aluminum mass percentage, quartic models were generated, with all model terms significant. Strong room and high-temperature tensile strength, %elongation, and creep resistance were all reached in the low Al-containing ZA alloys, with 1.597 wt% anticipated ideal Al mass concentration, according to RSM optimization. © 2023 The Authors
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