Comparative Studies of Cr/Ti Additions for Cu40Mn25Al20Fe5Ni5 HEA on Microstructure and Corrosion Behavior in HNO3 Solution

被引：8
作者：
Mohamed, Lamiaa Z. [1 ]
Abdelghafar, Khaled A. [2 ]
Aly, Hayam A. [2 ,3 ]
Gaber, Ghalia A. [4 ]
机构：
[1] Cairo Univ, Fac Engn, Min Petr & Met Engn Dept, POB 12613, Giza, Egypt
[2] Cent Met Res & Dev Inst CMRDI, Met Casting Lab, POB 11421, Helwan, Egypt
[3] Suez Univ, Fac Petr & Min Engn, Dept Met & Mat Engn, POB 43721, Suez, Egypt
[4] Al Azhar Univ, Fac Sci Girls, Dept Chem, Yousef Abbas St,POB 11754, Cairo, Egypt
来源：
INTERNATIONAL JOURNAL OF METALCASTING | 2023年 / 17卷 / 03期
关键词：
high entropy alloys; Cu-rich HEA; corrosion behavior; microstructure; nitric acid; HIGH-ENTROPY ALLOY; RESISTANCE;
D O I：
10.1007/s40962-022-00891-w
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of Cr or Ti additions to Cu40Mn25Al20Fe5Ni5 high entropy alloy (HEA) on the microstructure and corrosion behavior in different concentrations of HNO3 solution were investigated. The microstructures of the Cu-rich HEAs are characterized and analyzed. Microstructural analysis of the HEAs indicates the formation of a dendritic structure. Also, the phases are identified by using X-ray diffraction (XRD). The corrosion behavior of the investigated HEAs in the HNO3 solution was studied. The corrosion rate (CR) for Cu40Mn25Al20Fe5Ni5Ti5 HEA (Ti-5 HEA) has a lower value than Cu40Mn25Al20Fe5Ni5Cr5 HEA (Cr-5 HEA). The morphology of the corroded HEAs was investigated by using SEM images, EDX analysis, and mapping for elemental distribution. Cr addition led to the formation of a Cr2O3 protective film on the dendrites. However, the Ti-5 HEA has a good surface morphology with a homogenous distribution than Cr-5 HEA which is associated with a decrease in the corrosion rate.
引用
收藏
页码：1791 / 1805
页数：15
相关论文
共 36 条
[1]   Evaluation of microstructural and corrosion resistance of as-cast Cu45Mn25Al15Fe5Cr5Ni5 high entropy alloy [J].
Abdelghafar, K. A. ;
MIbrahim, M. ;
Shoeib, Madiha A. ;
Waly, M. A. .
MATERIALS RESEARCH EXPRESS, 2020, 7 (01)
[2]   Microstructure and corrosion behavior of FeNiCoCrCu and FeNiCoCrMn high entropy alloys manufactured by powder metallurgy in different acid media [J].
Abolkassem, Shimaa A. ;
Mohamed, Lamiaa Z. ;
Gaber, Ghalia A. ;
Elkady, Omayma A. .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2021, 10 :1122-1142
[3]   Fabrication, Characterization, and Corrosion Behavior of a New Cu40Mn25Al20Fe5Co5Ni5 High-Entropy Alloy in HNO3 Solution [J].
Aly, Hayam A. ;
Abdelghafar, Khaled A. ;
Gaber, Ghalia A. ;
Mohamed, Lamiaa Z. .
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2021, 30 (02) :1430-1443
[4]   Corrosion behaviors of FeCoNiCrx (x=0, 0.5, 1.0) multi-principal element alloys: Role of Cr-induced segregation [J].
Chai, Wenke ;
Lu, Tao ;
Pan, Ye .
INTERMETALLICS, 2020, 116
[5]   Electrochemical kinetics of the high entropy alloys in aqueous environments - a comparison with type 304 stainless steel [J].
Chen, YY ;
Hong, UT ;
Shih, HC ;
Yeh, JW ;
Duval, T .
CORROSION SCIENCE, 2005, 47 (11) :2679-2699
[6]   Effect of Nb addition on the structure and mechanical behaviors of CoCrCuFeNi high-entropy alloy coatings [J].
Cheng, J. B. ;
Liang, X. B. ;
Xu, B. S. .
SURFACE & COATINGS TECHNOLOGY, 2014, 240 :184-190
[7]   Formation of a Huesler-like L21 phase in a CoCrCuFeNiAlTi high-entropy alloy [J].
Choudhuri, D. ;
Alam, T. ;
Borkar, T. ;
Gwalani, B. ;
Mantri, A. S. ;
Srinivasan, S. G. ;
Gibson, M. A. ;
Banerjee, R. .
SCRIPTA MATERIALIA, 2015, 100 :36-39
[8]   High-entropy materials for energy-related applications [J].
Fu, Maosen ;
Ma, Xiao ;
Zhao, Kangning ;
Li, Xiao ;
Su, Dong .
ISCIENCE, 2021, 24 (03)
[9]   ANOVA and DOE of comparative studies of Cu/Mn effect on corrosion features of CoCrFeNi high entropy alloy immersed in different acidic media [J].
Gaber, Ghalia A. ;
Abolkassem, Shimaa A. ;
Elkady, Omayma A. ;
Tash, Mahmoud ;
Mohamed, Lamiaa Z. .
CHEMICAL PAPERS, 2022, 76 (03) :1675-1690
[10]   High-Entropy Alloys (HEAs) [J].
Gao, Michael C. ;
Qiao, Junwei .
METALS, 2018, 8 (02)
1234