Unusually high corrosion resistance in Mo CrNiCo medium entropy alloy enhanced by acidity in aqueous solution

Shuang, Shuo; Lyu, G.J.; Chung, Doug Young; Wang, Xian-Zong; Gao, Xiang; Mao, Haiyang; Li, Wanpeng; He, Qiwen; Guo, Bingshu; Zhong, Xiaoyan; Wang, Y.J.; Yang, Yong

doi:10.1016/j.jmst.2022.07.061

Cited by 23 publications

(4 citation statements)

References 57 publications

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“…Alloys are solid solutions, 201 compounds, 202 and interstitial compounds 203 with metal properties synthesized by the melting, 204 mechanical alloying, 205 sintering, 206 or vapor deposition 207 of several metals, or of nonmetals including at least one metal. Generally, compared with the materials before processing, alloys have a lower melting point, 208 stronger hardness, 209 better ductility, 210 higher corrosion resistance, 211 and heat insulation, 212 and so on. Alloys have a long history beginning 6000 years ago, when Old Babylonians began to refine bronze.…”

Section: Applicationmentioning

confidence: 99%

Methods, progresses, and opportunities of materials informatics

Li,

Zheng

2023

InfoMat

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As an implementation tool of data intensive scientific research methods, machine learning (ML) can effectively shorten the research and development (R&D) cycle of new materials by half or even more. ML shows great potential in the combination with other scientific research technologies, especially in the processing and classification of large amounts of material data from theoretical calculation and experimental characterization. It is very important to systematically understand the research ideas of material informatics to accelerate the exploration of new materials. Here, we provide a comprehensive introduction to the most commonly used ML modeling methods in material informatics with classic cases. Then, we review the latest progresses of prediction models, which focus on new processing–structure–properties–performance (PSPP) relationships in some popular material systems, such as perovskites, catalysts, alloys, two‐dimensional materials, and polymers. In addition, we summarize the recent pioneering researches in innovation of material research technology, such as inverse design, ML interatomic potentials, and microtopography characterization assistance, as new research directions of material informatics. Finally, we comprehensively provide the most significant challenges and outlooks related to the future innovation and development in the field of material informatics. This review provides a critical and concise appraisal for the applications of material informatics, and a systematic and coherent guidance for material scientists to choose modeling methods based on required materials and technologies.

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Section: Applicationmentioning

confidence: 99%

Methods, progresses, and opportunities of materials informatics

Li,

Zheng

2023

InfoMat

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“…Mo-oxides or Mooxyhydroxides can inhibit the formation of active sites on passive films, thus impeding the pitting corrosion process 77,78 . Research has also shown that Mo can promote the formation of Cr 2 O 3 or the enrichment of Cr content in the passive film because Mo can promote the deprotonation of OH − so as to provide O 2− to enhance the formation of inner Cr oxides [79][80][81][82][83] . Li et al 84 8 studied the effect of Mo content on the corrosion behavior of FeCoCrNiMo x (x = 0, 0.1, 0.3, and 0.6) MPEAs and found that the addition of Mo could decrease the point-defect density and enhance the Cr 2 O 3 /Cr(OH) 3 ratio in the passive film on the FeCoCrNiMo 0.1 alloy, which significantly improved the passivation ability compared to the Mo 0 alloy.…”

Section: Molybdenummentioning

confidence: 99%

Recent research progress on the passivation and selective oxidation for the 3d-transition-metal and refractory multi-principal element alloys

Wang,

Yan,

et al. 2023

npj Mater Degrad

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The wide range of alloy composition controllability for multi-principal element alloys (MPEAs) may provide a great opportunity for discovering special forms of surface oxides to improve the corrosion and oxidation resistance in extreme environments. Changing the type and content of promoting passivation elements would not only change the microstructure of the alloy but also significantly affect the composition and structure of the surface passive film, resulting in a strong impact on the corrosion and oxidation resistance of the alloy. This article reviews recent research on the effects of alloying elements on the passivation properties, the contribution of each alloying element, and the synergistic effect between the elements on the passivation mechanisms and electrochemical dissolution characteristics of surface passive films that form on some MPEAs. In addition, the composition and structural characteristics of surface oxides relevant to the selective oxidation of elements are elaborated upon. Finally, several open questions and recommendations for research directions regarding the passivation and selective oxidation of MPEAs were provided to guide future exploration.

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“…One such alloy was developed, namely the MoCrNiCo MEA. This alloy shows ultra-high corrosion resistance in acidic media, which is due to the formation of a medium entropy oxide film with a very low amount of defects [48].…”

Section: Meas As Structural Materialsmentioning

confidence: 99%

A Fresh Perspective on Medium Entropy Alloys Applications as Coating and Coating Substrate

Nartita¹,

Ioniță²,

Demetrescu³

et al. 2022

AnnalsARSciPhysChem

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In order to evolve as a society we need increasingly efficient technologies and implicitly materials with great performance that promote safety and sustainability. The discovery of high entropy alloys was received with much enthusiasm due to the possibility of designing new materials with improved properties, that could be used in applications that require extreme conditions or a very specific combination of properties. As the research in this area is continuously increasing and the results are very promising, this review focuses on the most recent investigations on medium entropy alloys (MEAs) applications, highlighting their properties, but taking into consideration other factors, such as economic and environmental factors. Additionally, considering the high cost associated with MEAs fabrication, MEA coatings are also explored, as they are nowadays regarded as a more convenient procedure to obtain the required properties for various substrate materials.

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Unusually high corrosion resistance in Mo CrNiCo medium entropy alloy enhanced by acidity in aqueous solution

Cited by 23 publications

References 57 publications

Methods, progresses, and opportunities of materials informatics

Methods, progresses, and opportunities of materials informatics

Recent research progress on the passivation and selective oxidation for the 3d-transition-metal and refractory multi-principal element alloys

A Fresh Perspective on Medium Entropy Alloys Applications as Coating and Coating Substrate

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