A review on the synergism between corrosion and fatigue of magnesium alloys:Mechanisms and processes on the micro-scale  

作　　者：Mara Cristina Lopes de Oliveira Rejane Maria Pereira da Silva Ricardo M.Souto Renato Altobelli Antunes 

机构地区：[1]Federal University of the ABC,Center for Engineering,Modeling and Applied Social Sciences,Av.Dos Estados,5001,09280-560 Santo André,SP,Brazil [2]Department of Chemistry-PPGQ,State University of Piauí,UESPI,Campus Poeta Torquato Neto,Pirajá,Teresina 64002-150 PI,Brazil [3]Institute of Material Science and Nanotechnology,University of La Laguna,P.O.Box 456,38200 La Laguna,Tenerife,Spain

出　　处：《Journal of Magnesium and Alloys》2024年第8期3062-3093,共32页镁合金学报（英文）

基　　金：support provided by the Spanish Ministry of Science and Innovation(MICINN,Madrid,Spain);the European Regional Development Fund(Brussels,Belgium)MCIN/AEI/10.13039/501100011033/FEDER,UE under grant PID2021-127445NB-I00.

摘　　要：Understanding the interaction between cyclic stresses and corrosion of magnesium(Mg)and its alloys is increasingly in demand due to the continuous expansion of structural applications of these materials.This review is dedicated to exploring the corrosion-fatigue mechanisms of these materials,with an emphasis on microscale processes,and the possibility of expanding current knowledge on this topic using scanning electrochemical techniques.The interaction between fatigue and corrosion of Mg alloys is analyzed by considering the microstructural aspects(grain size,precipitates,deformation twins),as well as the formation of pits.Furthermore,in the case of coated alloys,the role of coating defects in these phenomena is also described.In this context,the feasibility of using scanning electrochemical microscopy(SECM),scanning vibrating electrode technique(SVET),scanning ion-selective electrode technique(SIET),localized electrochemical impedance spectroscopy(LEIS)and scanning Kelvin probe(SKP)methods to study the corrosion-fatigue interaction of Mg alloys is examined.A comprehensive review of the current literature in this field is presented,and the opportunities and limitations of consolidating the use of these techniques to study the microscale processes involved in Mg corrosion-fatigue are discussed.

关 键 词：Magnesium alloys Localized corrosion and protection FATIGUE Scanning electrochemical microscopy Scanning vibrating electrode technique Scanning ion-selective electrode technique Scanning Kelvin probe Chemical imaging 

分 类 号：TG146.22[一般工业技术—材料科学与工程]