Investigation of Microstructure and Corrosion of TiNbTaZrMo High-Entropy Alloy in the Simulated Body Fluid

作     者：Arash Shokrgozar Navi Shahram Etemadi Haghighi Mohammad Haghpanahi Amir Momeni Arash Shokrgozar Navi;Shahram Etemadi Haghighi;Mohammad Haghpanahi;Amir Momeni

作者机构：Deparment of mechanical engineeringScience and Research branchIslamic Azad UniversityTehran ***Oran Department of mechanical engineeringIran University of Science and TechnologyTehran 13114-16846Iran Materials Science and Engineering DepartmentHamedan University of TechnologyHlamedan ***Iran 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2021年第18卷第1期

页      面：118-127页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：HEA SBF implant material electrochemical impedance test Nyquist polarization test 

摘      要：Microstructures and corrosion of TiNbTaZrMo(Ti_(20)Nb_(20)Ta_(20)Zr_(20)Mo_(20))High-Entropy Alloy(HEA)were investigated in the Simu-lated Body Fluid(SBF).Microstructure of this alloy was investigated by X-Ray Difiraction(XRD)and Scanning Electron Microscopy(SEM)*** observations confirmed the presence of two bcc phases as the major matrix as well as another minor phase in themicrostructure of the *** of some elements,such as tantalum,niobium,and molybdenum in the dendritic branches and thepresence of zirconium and titanium in the inter-dendritic branches were clearly evidenced by Energy Dispersive X-ray(EDX)*** importance of corrosion of implant alloys in the human s body,elctrochemical impedance and cyclic polarization tests werepcerformed on the alloy in *** the corrosion tests,corrosion potential,current,and resistance were obtained as E_(corr)=-0.42 V,i_(corr)=0.34μA·cm^(-2),and R_(p)=27.44 k ohm·cm^(2),*** results revealed that the rate of corrosion in TiNbTaZrMo HEA is about 26 times better than that of Ti_(6)Al_(4)V ***,both alloys had no pitting corrosion in the SBF solution.