Corrosion Behavior of AlCoCrFeNi2.1 Eutectic High-Entropy Alloy in Sulfuric Acid Solution
Received date: 2022-05-12
Revised date: 2022-06-30
Online published: 2022-07-15
Supported by
Guang Dong Basic and Applied Basic Research Foundation(2021A1515110560)
Several high-entropy alloys (HEAs), such as single-phase bcc HEA with high strength and fcc with high ductility have been developed over the past few decades. Eutectic HEA (EHEA), such as AlCoCrFeNi2.1, consists of both fcc and bcc microstructure, imparting excellent mechanical properties. The recent research on AlCoCrFeNi2.1 EHEA primarily focuses on its mechanical properties. However, corrosion resistance of AlCoCrFeNi2.1 EHEA is rarely discussed, which is crucial for the application of new materials. This work investigates the corrosion behavior of AlCoCrFeNi2.1 EHEA in 0.05 mol/L H2SO4 and 0.05 mol/L H2SO4 + 0.02 mol/L NaCl solutions using electrochemical evaluation, SEM, EDS, and XPS. The results indicate that Cl- do not alter the semiconductor type of passive film on AlCoCrFeNi2.1 EHEA, but they considerably affect the compactness. Cl- change passive film properties by influencing the Al and Cr oxide contents; however, Ni is not affected by Cl-. The Ni-Al-rich phase is preferentially dissolved in 0.05 mol/L H2SO4 solution, and pitting corrosion and selective dissolution occur in 0.05 mol/L H2SO4 + 0.02 mol/L NaCl solution.
Key words： eutectic high-entropy alloy; localized corrosion; passivation
HU Wenbin , ZHANG Xiaowen , SONG Longfei , LIAO Bokai , WAN Shan , KANG Lei , GUO Xingpeng . Corrosion Behavior of AlCoCrFeNi2.1 Eutectic High-Entropy Alloy in Sulfuric Acid Solution[J]. Acta Metall Sin, 2023 , 59(12) : 1644 -1654 . DOI: 10.11900/0412.1961.2022.00237
| 1 | Wang H W, He Z F, Jia N. Microstructure and mechanical properties of a FeMnCoCr high-entropy alloy with heterogeneous structure[J]. Acta Metall. Sin., 2021, 57: 632 |
| 王洪伟, 何竹风, 贾 楠. 非均匀组织FeMnCoCr高熵合金的微观结构和力学性能[J]. 金属学报, 2021, 57: 632 | |
| 2 | Lu Y P, Dong Y, Guo S, et al. A promising new class of high-temperature alloys: Eutectic high-entropy alloys[J]. Sci. Rep., 2014, 4: 6200 |
| 3 | Li X G, Zhang D W, Liu Z Y, et al. Materials science: Share corrosion data[J]. Nature, 2015, 527: 441 |
| 4 | Li Q, Xia X J, Pei Z B， et al. Long-term corrosion monitoring of carbon steels and environmental correlation analysis via the random forest method[J]. npj Mater. Degrad., 2022, 6: 1 |
| 5 | Wang H, Liu P, Chen X H, et al. Mechanical properties and corrosion resistance characterization of a novel Co36Fe36Cr18Ni10 high-entropy alloy for bioimplants compared to 316L alloy[J]. J. Alloys Compd., 2022, 906: 163947 |
| 6 | Xu Z L, Zhang H, Du X J, et al. Corrosion resistance enhancement of CoCrFeMnNi high-entropy alloy fabricated by additive manufacturing[J]. Corros. Sci., 2020, 177: 108954 |
| 7 | Luo H, Zou S W, Chen Y H, et al. Influence of carbon on the corrosion behaviour of interstitial equiatomic CoCrFeMnNi high-entropy alloys in a chlorinated concrete solution[J]. Corros. Sci., 2020, 163: 108287 |
| 8 | Shi Y Z, Yang B, Xie X, et al. Corrosion of Alx CoCrFeNi high-entropy alloys: Al-content and potential scan-rate dependent pitting behavior[J]. Corros. Sci., 2017, 119: 33 |
| 9 | Chai W K, Lu T, Pan Y. Corrosion behaviors of FeCoNiCrx (x = 0, 0.5, 1.0) multi-principal element alloys: Role of Cr-induced segregation[J]. Intermetallics, 2020, 116: 106654 |
| 10 | Lin C M, Tsai H L. Evolution of microstructure, hardness, and corrosion properties of high-entropy Al0.5CoCrFeNi alloy[J]. Intermetallics, 2011, 19: 288 |
| 11 | Lu Y P, Jiang H, Guo S, et al. A new strategy to design eutectic high-entropy alloys using mixing enthalpy[J]. Intermetallics, 2017, 91: 124 |
| 12 | Jiang H, Han K M, Gao X X, et al. A new strategy to design eutectic high-entropy alloys using simple mixture method[J]. Mater. Des., 2018, 142: 101 |
| 13 | He F, Wang Z J, Ai C, et al. Grouping strategy in eutectic multi-principal-component alloy[J]. Mater. Chem. Phys., 2019, 221: 138 |
| 14 | Peng P, Li S Y, Chen W Q, et al. Phase selection and mechanical properties of directionally solidified AlCoCrFeNi2.1 eutectic high-entropy alloy[J]. J. Alloys Compd., 2022, 898: 162907 |
| 15 | Huang L F, Sun Y N, Chen N, et al. Simultaneously enhanced strength-ductility of AlCoCrFeNi2.1 eutectic high-entropy alloy via additive manufacturing[J]. Mater. Sci. Eng., 2022, A830: 142327 |
| 16 | Sun Y P, Wang Z, Yang H J, et al. Effects of the element La on the corrosion properties of CrMnFeNi high entropy alloys[J]. J. Alloys Compd., 2020, 842: 155825 |
| 17 | Trueba M, Trasatti S P. Study of Al alloy corrosion in neutral NaCl by the pitting scan technique[J]. Mater. Chem. Phys., 2010, 121: 523 |
| 18 | Shuang S, Ding Z Y, Chung D, et al. Corrosion resistant nanostructured eutectic high entropy alloy[J]. Corros. Sci., 2020, 164: 108315 |
| 19 | Chou Y L, Yeh J W, Shih H C. The effect of molybdenum on the corrosion behaviour of the high-entropy alloys Co1.5CrFeNi1.5Ti0.5Mox in aqueous environments[J]. Corros. Sci., 2010, 52: 2571 |
| 20 | Fu Y, Dai C D, Luo H, et al. The corrosion behavior and film properties of Al-containing high-entropy alloys in acidic solutions[J]. Appl. Surf. Sci., 2021, 560: 149854 |
| 21 | Umoren S A, Li Y, Wang F H, et al. Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions[J]. Corros. Sci., 2010, 52: 1777 |
| 22 | Lee C P, Chang C C, Chen Y Y, et al. Effect of the aluminium content of Alx CrFe1.5MnNi0.5 high-entropy alloys on the corrosion behaviour in aqueous environments[J]. Corros. Sci., 2008, 50: 2053 |
| 23 | Kao Y F, Lee T D, Chen S K, et al. Electrochemical passive properties of Alx CoCrFeNi (x = 0, 0.25, 0.50, 1.00) alloys in sulfuric acids[J]. Corros. Sci., 2010, 52: 1026 |
| 24 | Luo H, Li Z M, Mingers A M, et al. Corrosion behavior of an equiatomic CoCrFeMnNi high-entropy alloy compared with 304 stainless steel in sulfuric acid solution[J]. Corros. Sci., 2018, 134: 131 |
| 25 | BenSalah M, Sabot R, Triki E, et al. Passivity of Sanicro28 (UNS N-08028) stainless steel in polluted phosphoric acid at different temperatures studied by electrochemical impedance spectroscopy and Mott-Schottky analysis[J]. Corros. Sci., 2014, 86: 61 |
| 26 | Mert B D, Yüce A O, Karda? G, et al. Inhibition effect of 2-amino-4-methylpyridine on mild steel corrosion: Experimental and theoretical investigation[J]. Corros. Sci., 2014, 85: 287 |
| 27 | Wang Z, Zhang G H, Fan X H, et al. Corrosion behavior and surface characterization of an equiatomic CoCrFeMoNi high-entropy alloy under various pH conditions[J]. J. Alloys Compd., 2022, 900: 163432 |
| 28 | Dai C D, Luo H, Li J, et al. X-ray photoelectron spectroscopy and electrochemical investigation of the passive behavior of high-entropy FeCoCrNiMox alloys in sulfuric acid[J]. Appl. Surf. Sci., 2020, 499: 143903 |
| 29 | Escrivà-Cerdán C, Blasco-Tamarit E, García-García D M, et al. Effect of temperature on passive film formation of UNS N08031 Cr-Ni alloy in phosphoric acid contaminated with different aggressive anions[J]. Electrochim. Acta, 2013, 111: 552 |
| 30 | Jiang R J, Chen C F, Zheng S Q. The non-linear fitting method to analyze the measured M-S plots of bipolar passive films[J]. Electrochim. Acta, 2010, 55: 2498 |
| 31 | Wei L, Liu Y, Li Q, et al. Effect of roughness on general corrosion and pitting of (FeCoCrNi)0.89(WC)0.11 high-entropy alloy composite in 3.5wt.%NaCl solution[J]. Corros. Sci., 2019, 146: 44 |
| 32 | Kong D C, Xu A N, Dong C F, et al. Electrochemical investigation and ab initio computation of passive film properties on copper in anaerobic sulphide solutions[J]. Corros. Sci., 2017, 116: 34 |
| 33 | Wang L T, Mercier D, Zanna S, et al. Study of the surface oxides and corrosion behaviour of an equiatomic CoCrFeMnNi high entropy alloy by XPS and ToF-SIMS[J]. Corros. Sci., 2020, 167: 108507 |
| 34 | Zhu M, Zhao B Z, Yuan Y F, et al. Effect of annealing temperature on microstructure and corrosion behavior of CoCrFeMnNi high-entropy alloy in alkaline soil simulation solution[J]. Mater. Chem. Phys., 2022, 279: 125725 |
| 35 | Izadi M, Soltanieh M, Alamolhoda S, et al. Microstructural characterization and corrosion behavior of Alx CoCrFeNi high entropy alloys[J]. Mater. Chem. Phys., 2021, 273: 124937 |
| 36 | Hasannaeimi V, Mukherjee S. Galvanic corrosion in a eutectic high entropy alloy[J]. J. Electroanal. Chem., 2019, 848: 113331 |
| 37 | Wang P J, Ma L W, Cheng Q X, et al. Influence of grain refinement on the corrosion behavior of metallic materials: A review[J]. Int. J. Miner., Metall. Mater., 2021, 28: 1112 |
| 38 | Szklarska-Smialowska Z. Pitting corrosion of aluminum[J]. Corros. Sci., 1999, 41: 1743 |
| 39 | Moreno M, Morris W, Alvarez M G, et al. Corrosion of reinforcing steel in simulated concrete pore solutions: Effect of carbonation and chloride content[J]. Corros. Sci., 2004, 46: 2681 |
| 40 | Hsu K M, Chen S H, Lin C S. Microstructure and corrosion behavior of FeCrNiCoMnx (x = 1.0, 0.6, 0.3, 0) high entropy alloys in 0.5 M H2SO4 [J]. Corros. Sci., 2021, 190: 109694 |
| 41 | Qi W, Wang W R, Yang X, et al. Effect of Zr on phase separation, mechanical and corrosion behavior of heterogeneous CoCrFeNiZrx high-etropy alloy[J]. J. Mater. Sci. Technol., 2022, 109: 76 |
| 42 | Wang W R, Qi W, Xie L, et al. Microstructure and corrosion behavior of (CoCrFeNi)95Nb5 high-entropy alloy coating fabricated by plasma spraying[J]. Materials, 2019, 12: 694 |
| 43 | Liu J, Zhang T, Meng G Z, et al. Effect of pitting nucleation on critical pitting temperature of 316L stainless steel by nitric acid passivation[J]. Corros. Sci., 2015, 91: 232 |
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