Microstructures,corrosion behavior and mechanical properties of as-cast Mg-6Zn-2X(Fe/Cu/Ni)alloys for plugging tool applications

作     者：Baosheng Liu Jiali Wei Shaohua Zhang Yuezhong Zhang Pengpeng Wu Daqing Fang Guorui Ma Baosheng Liu;Jiali Wei;Shaohua Zhang;Yuezhong Zhang;Pengpeng Wu;Daqing Fang;Guorui Ma

作者机构：School of Materials Science and EngineeringTaiyuan University of Science and TechnologyTaiyuan 030024China State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an 710049China Intelligent Equipment Research and Development CenterZhuhai Institute of Advanced Technology Chinese Academy of SciencesZhuhai 519080China Advanced Materials Research InstituteZhuhai Dingmei Medical Technology Co.Ltd.Zhuhai 519000China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2024年第31卷第4期

页      面：697-711页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the Key Scientific Research Project in Shanxi Province,China(No.202102050201003) the National Natural Science Foundation of China(No.52071227) the Natural Science Foundation of Shanxi Province,China(No.202103021223293) the Central Guiding Science and Technology Development of Local Fund,China(No.YDZJSK20231A046) the Postgraduate Education Innovation Project of Shanxi Province,China(No.2023Y686) 

主　　题：magnesium alloys microstructure micro-galvanic corrosion mechanical properties 

摘      要：Mg-6Zn-2X(Fe/Cu/Ni)alloys were prepared through semi-continuous casting,with the aim of identifying a degradable magnesium(Mg)alloy suitable for use in fracturing balls.A comparative analysis was conducted to assess the impacts of adding Cu and Ni,which result in finer grains and the formation of galvanic corrosion *** electronic microscopy examination revealed that precipitated phases concentrated at grain boundaries,forming a semi-continuous network structure that facilitated corrosion penetration in Mg-6Zn-2Cu and Mg-6Zn-2Ni *** corrosion was observed in Mg-6Zn-2Fe,while galvanic corrosion was identified as the primary mechanism in Mg-6Zn-2Cu and Mg-6Zn-2Ni *** the tests,the Mg-6Zn-2Ni alloy exhibited the highest corrosion rate(approximately 932.9 mm/a)due to its significant potential *** testing showed that Mg-6Zn-2Ni alloy possessed suitable ultimate compressive strength,making it a potential candidate material for degradable fracturing balls,effectively addressing the challenges of balancing strength and degradation rate in fracturing applications.