Anisotropic corrosion behavior of hot-rolled Mg-8 wt.%Li alloy

作     者：Baojie Wang Kai Xu Daokui Xu Xiang Cai Yanxin Qiao Liyuan Sheng Baojie Wang;Kai Xu;Daokui Xu;Xiang Cai;Yanxin Qiao;Liyuan Sheng

作者机构：School of Environmental and Chemical EngineeringShenyang Ligong University.Shenyang.110159China Key Laboratory of Nuclear Materials and Safety AssessmentInstitute of Metal ResearchChinese Academy of SciencesShenyang110016China School of Materials Science and EngineeringJiangsu University of Science and TechnologyZhenjiang212003China Peking UniversityShenzhen InstituteShenzhen Key Lab Human Tissue Regenerate RepairShenzhen518057China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第52卷第18期

页      面：102-111页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Key Research and Development Program of China under Grant(Nos.2017YFB0702001 and 2016YFB0301105) the Strategic New Industry Development Special Foundation of Shenzhen(No.JCYJ20170306141749970) the National Natural Science Foundation of China Projects under Grant(Nos.51871211 and 51701129) the Doctor Startup Fund of Natural Science Foundation Program of Liaoning Province(No.2019-BS-200) the funds of International Joint Laboratory for Light Alloys,Liaoning BaiQianWan Talents Program the Domain Foundation of Equipment Advance Research of 13th Five-year Plan(No.61409220118) the Innovation Fund of Institute of Metal Research(IMR),Chinese Academy of Sciences(CAS) the National Basic Research Program of China(“973 Program”)(No.2013CB632205) 

主　　题：Mg-Li alloys Texture Anisotropic corrosion Pitting Crystallographic plane 

摘      要：By performing the immersion,hydrogen evolution and electrochemical corrosion testing in a 0.1 mol/L NaCl solution,the corrosion performance of differently oriented samples cut from an as-rolled Mg-8wt.%Li alloy plate has been investigated and *** demonstrated that obvious anisotropy in corrosion resistance existed between the sample surfaces with different *** them,the corrosion rate ofND(the normal direction)samples with their surfaces perpendicular to the normal direction of the plate was the *** corrosion rate ofTD(the transverse direction)samples with their surfaces perpendicular to the transverse direction of the plate took the second *** theRD(the rolling direction)samples with their surfaces perpendicular to the rolling direction of the plate,they had the lowest corrosion *** all the samples,their corrosion performance and the pitting severity were mainly ascribed to the crystallographic texture ofα-Mg matrix phases because the formed surface films onβ-Li phases could provide good protection to the *** theNDandTDsamples,the exposed surfaces were composed of{0002},{1010}and{1120}planes ofα-Mg phases and subsequently resulted in their severe corrosion attack due to the corrosion couples between basal and prism *** the crystallographic planes of exposedα-Mg phases on the surfaces ofRDsamples were mainly{1010}and{1120}prism planes,the pitting severity was the weakest.