Influence of friction stir processing on the metallurgical, electrochemical characteristics, and sacrificial anodic performance of magnesium - rare earth alloy Mg-1Er-1Gd

被引：2
作者：
Neha, K. [1 ]
Dhanush, L. [2 ]
Vignesh, R. Vaira [2 ]
Sathiya, P. [3 ]
机构：
[1] Univ Birmingham, Sch Met & Mat, Birmingham, England
[2] Amrita Vishwa Vidyapeetham, Amrita Sch Engn, Dept Mech Engn, Coimbatore, India
[3] Natl Inst Technol, Dept Prod Engn, Tiruchirappalli, India
来源：
EMERGENT MATERIALS | 2025年
基金：
新加坡国家研究基金会;
关键词：
Mg-1Er-1Gd; Magnesium alloy; Sacrificial anode; Friction stir processing; Electrochemical performance; CORROSION BEHAVIOR;
D O I：
10.1007/s42247-025-01078-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnesium-rare earth (Mg-RE) alloys are promising candidates for sacrificial anodic applications; however, their high corrosion potential and rapid degradation limit their practical use. This study addresses this challenge by investigating the effects of friction stir processing (FSP) on the microstructural evolution and electrochemical performance of Mg-1Er-1Gd alloy. The scientific novelty is the utilization of FSP to refine the microstructure, enhance corrosion resistance, and improve sacrificial anodic efficiency of Mg-1Er-1Gd alloy. A detailed characterization of phase evolution, hardness, electrochemical behavior, and corrosion kinetics was conducted. The results indicate that FSP significantly enhances anodic performance, reducing the anodic consumption rate to 8.44 x 10(-4) kg/Ah and increasing anodic efficiency to similar to 54%, which is 155% higher than the base alloy.
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页数：19
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