Microbiologically Influenced Corrosion Behavior of Fe_(40)(CoCrMnNi)_(60) and Fe_(60)(CoCrMnNi)_(40) Medium Entropy Alloys in the Presence of Pseudomonas Aeruginosa

作     者：Weiwei Chang Yangyang Li Huaibei Zheng Hongchang Qian Dawei Guo Shuyuan Zhang Yuntian Lou Chi Tat Kwok Lap Mou Tam Dawei Zhang Weiwei Chang;Yangyang Li;Huaibei Zheng;Hongchang Qian;Dawei Guo;Shuyuan Zhang;Yuntian Lou;Chi Tat Kwok;Lap Mou Tam;Dawei Zhang

作者机构：National Materials Corrosion and Protection Data CenterInstitute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China BRI Southeast Asia Network for Corrosion and Protection(MOE)Shunde Graduate School of University of Science and Technology BeijingFoshan 528399China State Key Laboratory of Metal Material for Marine Equipment and ApplicationAnshan 114002China Department of Electromechanical EngineeringUniversity of MacaoMacao 999078China Institute for the Development and QualityMacao 999078China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2023年第36卷第3期

页      面：379-390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 National Natural Science Foundation of China(Nos.52001021,52161160308) the China Postdoctoral Science Foundation(Nos.2021M700372 and 2021M700381) the Joint Fund of Basic and Applied Basic Research Fund of Guangdong Province(No.2021B1515130009) the Open Fund from State Key Laboratory of Metal Material for Marine Equipment and Application(No.SKLMEA-K202006) 

主　　题：Microbiologically influenced corrosion Medium entropy alloys Pseudomonas aeruginosa 

摘      要：In this work,the microbiologically influenced corrosion(MIC)of Fe_(40)(CoCrMnNi)_(60) and Fe_(60)(CoCrMnNi)_(40) medium entropy alloys(MEAs)induced by Pseudomonas aeruginosa(***)was *** behaviors during 14 days of immersion in sterile and ***-inoculated culture media are *** sterile conditions,both MEAs exhibited good corrosion resistance against the culture medium *** the presence of ***,the pitting corrosion of MEAs was *** results of inductively coupled plasma‒mass spectrometry(ICP‒MS)and potentiodynamic polarization tests showed that the presence of *** promoted the selective dissolution of passive film and accelerated the corrosion of *** results of X-ray photoelectron spectroscopy(XPS)and Mott-Schottky measurements further demonstrated the degradation effect of *** on the passive *** with Fe_(60)(CoCrMnNi)_(40),Fe_(40)(CoCrMnNi)_(60) manifested better resistance to the MIC caused by ***,which may be attributed to more Cr oxides and fewer Fe oxides of the passive film.