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Journal articles on the topic 'Multi principal element alloys'

Author: Grafiati

Published: 6 September 2023

Last updated: 25 July 2025

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1

Reiberg, Marius, Leonhard Hitzler, Lukas Apfelbacher, et al. "Additive Manufacturing of CrFeNiTi Multi-Principal Element Alloys." Materials 15, no. 22 (2022): 7892. http://dx.doi.org/10.3390/ma15227892.

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High entropy alloys (HEAs) and their closely related variants, called multi-principal element alloys (MPEAs), are the topic of a rather new area of research, and so far, the gathered knowledge is incomplete. This is especially true when it comes to material libraries, as the fabrication of HEA and MPEA samples with a wide variation in chemical compositions is challenging in itself. Additive manufacturing technologies are, to date, seen as possibly the best option to quickly fabricate HEA and MPEA samples, offering both the melting metallurgical and solid-state sintering approach. Within this s

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2

Derimow, N., R. F. Jaime, B. Le, and R. Abbaschian. "Hexagonal (CoCrCuTi)100-Fe multi-principal element alloys." Materials Chemistry and Physics 261 (March 2021): 124190. http://dx.doi.org/10.1016/j.matchemphys.2020.124190.

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3

Scully, John R., Samuel B. Inman, Angela Y. Gerard, et al. "Controlling the corrosion resistance of multi-principal element alloys." Scripta Materialia 188 (November 2020): 96–101. http://dx.doi.org/10.1016/j.scriptamat.2020.06.065.

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4

Charpagne, M. A., K. V. Vamsi, Y. M. Eggeler, et al. "Design of Nickel-Cobalt-Ruthenium multi-principal element alloys." Acta Materialia 194 (August 2020): 224–35. http://dx.doi.org/10.1016/j.actamat.2020.05.003.

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5

Huang, Jiani, Wenqing Yang, Zhenguang Gao, Xu Hou, and Xu-Sheng Yan. "Heterostructured multi-principal element alloys prepared by laser-based techniques." Microstructures 5, no. 2 (2025): 2025021. https://doi.org/10.20517/microstructures.2024.86.

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Heterostructured materials, featured by two or more distinct zones with unique properties and intricate interactions at hetero-zone boundaries, showcase a remarkable strength-ductility synergistic effect for achieving superior mechanical properties surpassing their conventional homogeneous counterparts. Benefiting from the basic characteristics, such as complex composition, high configurational entropy and local distortion, multi-principal element alloys offer a fruitful playground for creating diverse heterostructures. Laser-based techniques such as laser surface treatment and laser additive

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6

Choudhury, Amitava, Tanmay Konnur, P. P. Chattopadhyay, and Snehanshu Pal. "Structure prediction of multi-principal element alloys using ensemble learning." Engineering Computations 37, no. 3 (2019): 1003–22. http://dx.doi.org/10.1108/ec-04-2019-0151.

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Purpose The purpose of this paper, is to predict the various phases and crystal structure from multi-component alloys. Nowadays, the concept and strategies of the development of multi-principal element alloys (MPEAs) significantly increase the count of the potential candidate of alloy systems, which demand proper screening of large number of alloy systems based on the nature of their phase and structure. Experimentally obtained data linking elemental properties and their resulting phases for MPEAs is profused; hence, there is a strong scope for categorization/classification of MPEAs based on s

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7

Xie, Chenyang, Xuejie Li, Fan Sun, Junsoo HAN, and Kevin Ogle. "The Spontaneous Repassivation of Cr Containing Steels and Multi-Principal Element Alloys." ECS Meeting Abstracts MA2022-02, no. 11 (2022): 735. http://dx.doi.org/10.1149/ma2022-0211735mtgabs.

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The corrosion resistance of an alloy in most environments will depend on its ability to spontaneously passivate at the corrosion potential. This is especially true for localized forms of corrosion such as occur in acidic, occluded environments during pitting and crevice corrosion. In the laboratory however, the kinetics of passivation are mainly investigated using electrochemical methods that require polarization of the material via an external power source. Spontaneous passivation cannot directly be observed by this approach. It is therefore of interest to investigate the repassivation phenom

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8

Xing, Bin, Xinyi Wang, William J. Bowman, and Penghui Cao. "Short-range order localizing diffusion in multi-principal element alloys." Scripta Materialia 210 (March 2022): 114450. http://dx.doi.org/10.1016/j.scriptamat.2021.114450.

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9

Zhao, Shijun, Yaoxu Xiong, Shihua Ma, Jun Zhang, Biao Xu, and Ji-Jung Kai. "Defect accumulation and evolution in refractory multi-principal element alloys." Acta Materialia 219 (October 2021): 117233. http://dx.doi.org/10.1016/j.actamat.2021.117233.

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10

Cao, Pei-Yu, Feng Liu, Fu-Ping Yuan, En Ma, and Xiao-Lei Wu. "Multiple potential phase-separation paths in multi-principal element alloys." Materials Today Nano 28 (December 2024): 100511. http://dx.doi.org/10.1016/j.mtnano.2024.100511.

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11

Senkov, O. N., J. D. Miller, D. B. Miracle, and C. Woodward. "Accelerated exploration of multi-principal element alloys for structural applications." Calphad 50 (September 2015): 32–48. http://dx.doi.org/10.1016/j.calphad.2015.04.009.

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12

Islam, Nusrat, Wenjiang Huang, and Houlong L. Zhuang. "Machine learning for phase selection in multi-principal element alloys." Computational Materials Science 150 (July 2018): 230–35. http://dx.doi.org/10.1016/j.commatsci.2018.04.003.

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13

Delgado Arroyo, Diego, Tim Richter, Dirk Schroepfer, et al. "Influence of Milling Conditions on AlxCoCrFeNiMoy Multi-Principal-Element Alloys." Coatings 13, no. 3 (2023): 662. http://dx.doi.org/10.3390/coatings13030662.

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Multi-Principal-Element or High-Entropy Alloys (MPEAs/HEAs) have gained increasing interest in the past two decades largely due to their outstanding properties such as superior mechanical strength and corrosion resistance. However, research studies on their processability are still scarce. This work assesses the effect of different machining conditions on the machinability of these novel alloys, with the objective of advancing the introduction of MPEA systems into industrial applications. The present study focuses on the experimental analysis of finish-milling conditions and their effects on t

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14

Singh, Prashant, Duane D. Johnson, Jordan Tiarks, et al. "Theory-guided design of duplex-phase multi-principal-element alloys." Acta Materialia 272 (June 2024): 119952. http://dx.doi.org/10.1016/j.actamat.2024.119952.

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15

Kirschner, Johannes, Christoph Eisenmenger-Sittner, Johannes Bernardi, Alexander Großalber, Simon Frank, and Clemens Simson. "Structural Changes in Multi Principal Element Alloys in Dependence on the Aluminium Content." Materials Science Forum 1016 (January 2021): 691–96. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.691.

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The development of novel light metal alloys represents an important task in the further optimization of technical materials. Multi-component systems with more than 4 metals are very promising to outperform currently existing alloys, but lack significant research in systems not dominated by transition metals to date. In this work, alloys containing the elements Al, Cu, Mg and Zn were produced using magnetron sputter deposition. A detailed structural investigation using electron microscopy provided valuable insights into the influences of different metals and their relative proportions in the al

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16

Liu, Li, Ramesh Paudel, Yong Liu, and Jing-Chuan Zhu. "Theoretical Study on Structural Stability and Elastic Properties of Fe25Cr25Ni25TixAl(25-x) Multi-Principal Element Alloys." Materials 14, no. 4 (2021): 1040. http://dx.doi.org/10.3390/ma14041040.

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Material genetic engineering studies the relationship between the composition, microstructure, and properties of materials. By adjusting the atomic composition, structure, or configuration of the material and combining different processes, new materials with target properties obtained. In this paper, the design, and properties of the ordered phases in Fe25Cr25Ni25TixAl(25-x) (subscript represents the atomic percentage) multi-principal element alloys are studied. By adjusting the percentages of Ti and Al atoms, the effect of the atomic percentage content on ordered phases’ structural stability

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17

Linton, Nathan, and Dilpuneet S. Aidhy. "A machine learning framework for elastic constants predictions in multi-principal element alloys." APL Machine Learning 1, no. 1 (2023): 016109. http://dx.doi.org/10.1063/5.0129928.

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On the one hand, multi-principal element alloys (MPEAs) have created a paradigm shift in alloy design due to large compositional space, whereas on the other, they have presented enormous computational challenges for theory-based materials design, especially density functional theory (DFT), which is inherently computationally expensive even for traditional dilute alloys. In this paper, we present a machine learning framework, namely PREDICT (PRedict properties from Existing Database In Complex alloys Territory), that opens a pathway to predict elastic constants in large compositional space with

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18

Panindre, Anup, Yehia Khalifa, Hendrik Colijn, Christopher Taylor, and Gerald S. Frankel. "Corrosion of Ru-Free Ni-Fe-Cr-Mo-W-X Multi-Principal Element Alloys." ECS Meeting Abstracts MA2022-02, no. 11 (2022): 734. http://dx.doi.org/10.1149/ma2022-0211734mtgabs.

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In this study, the passivity and localized corrosion of single- and multi-phase Ru-free Ni-Fe-Cr-Mo-W-X (X= Mn, Al, and Cu) multi-principal element alloys (MPEAs) were studied using AC and DC electrochemical methods. While each alloy was found to resist localized pitting corrosion at ambient temperature, X-ray photoelectron spectroscopy of passivated alloy specimen surfaces revealed constituent elements to dissolve in a non-congruent manner. Heat treatment of the single-phase alloys at 800 °C to promote precipitation of hard, strength-enhancing secondary phases resulted in the formation of Cr,

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19

Chung, Dukhyun, Heounjun Kwon, Chika Eze, Woochul Kim, and Youngsang Na. "Influence of Ti Addition on the Strengthening and Toughening Effect in CoCrFeNiTix Multi Principal Element Alloys." Metals 11, no. 10 (2021): 1511. http://dx.doi.org/10.3390/met11101511.

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Multi principal element alloys have attracted interests as a promising way to balance the bottleneck of the “inverse relationship” between high hardness and high fracture toughness. In the present study, the authors demonstrate the effects of Ti addition on the microstructures and mechanical properties of the CoCrFeNiTix alloys (x values in molar ratio, x = 0.7, 1.0, and 1.2), which exhibits a multi-phase structure containing face-centered cubic phase and various secondary phases, such as sigma, Laves, and (Cr,Fe)-rich phase. Throughout the combined experimental examination and modeling, we sh

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20

Beyramali Kivi, Mohsen, Yu Hong, and Mohsen Asle Zaeem. "A Review of Multi-Scale Computational Modeling Tools for Predicting Structures and Properties of Multi-Principal Element Alloys." Metals 9, no. 2 (2019): 254. http://dx.doi.org/10.3390/met9020254.

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Multi-principal element (MPE) alloys can be designed to have outstanding properties for a variety of applications. However, because of the compositional and phase complexity of these alloys, the experimental efforts in this area have often utilized trial and error tests. Consequently, computational modeling and simulations have emerged as power tools to accelerate the study and design of MPE alloys while decreasing the experimental costs. In this article, various computational modeling tools (such as density functional theory calculations and atomistic simulations) used to study the nano/micro

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21

Montero, Jorge, Claudia Zlotea, Gustav Ek, Jean-Claude Crivello, Lætitia Laversenne, and Martin Sahlberg. "TiVZrNb Multi-Principal-Element Alloy: Synthesis Optimization, Structural, and Hydrogen Sorption Properties." Molecules 24, no. 15 (2019): 2799. http://dx.doi.org/10.3390/molecules24152799.

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While the overwhelming number of papers on multi-principal-element alloys (MPEAs) focus on the mechanical and microstructural properties, there has been growing interest in these alloys as solid-state hydrogen stores. We report here the synthesis optimization, the physicochemical and the hydrogen sorption properties of Ti0.325V0.275Zr0.125Nb0.275. This alloy was prepared by two methods, high temperature arc melting and ball milling under Ar, and crystallizes into a single-phase bcc structure. This MPEA shows a single transition from the initial bcc phase to a final bct dihydride and a maximum

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22

Wu, Yidong, Yuluo Li, Xuli Liu, Qinjia Wang, Xiaoming Chen, and Xidong Hui. "High strength NiMnFeCrAlCu multi-principal-element alloys with marine application perspective." Scripta Materialia 202 (September 2021): 113992. http://dx.doi.org/10.1016/j.scriptamat.2021.113992.

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23

Reiberg, M., X. Li, E. Maawad, and E. Werner. "Lattice strain during compressive loading of AlCrFeNiTi multi-principal element alloys." Continuum Mechanics and Thermodynamics 33, no. 4 (2021): 1541–54. http://dx.doi.org/10.1007/s00161-021-00990-9.

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AbstractIn this work, multi-principal element alloys (MPEAs) with the five base elements Al, Cr, Fe, Ni and Ti plus elements in minor amounts were produced by powder metallurgy and their microstructure and elastic behavior were analyzed via light and scanning electron microscopy, electron backscatter diffraction (EBSD) and synchrotron X-ray diffraction. The two studied compositions are an MPEA with Al, Cr, Fe, Ni and Ti in equimolar ratio as well as a similar composition with a concentration of Ti reduced to 10 mol%. The goal is to analyze the microstructural behavior of these compositions dur

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24

Newell, Ryan, Zi Wang, Isabel Arias, Abhishek Mehta, Yongho Sohn, and Stephen Florczyk. "Direct-Contact Cytotoxicity Evaluation of CoCrFeNi-Based Multi-Principal Element Alloys." Journal of Functional Biomaterials 9, no. 4 (2018): 59. http://dx.doi.org/10.3390/jfb9040059.

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Transition metal multi-principal element alloys (MPEAs) are novel alloys that may offer enhanced surface and mechanical properties compared with commercial metallic alloys. However, their biocompatibility has not been investigated. In this study, three CoCrFeNi-based MPEAs were fabricated, and the in vitro cytotoxicity was evaluated in direct contact with fibroblasts for 168 h. The cell viability and cell number were assessed at 24, 96, and 168 h using LIVE/DEAD assay and alamarBlue assay, respectively. All MPEA sample wells had a high percentage of viable cells at each time point. The two qua

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25

Singh, R., P. Singh, A. Sharma, et al. "Neural-network model for force prediction in multi-principal-element alloys." Computational Materials Science 198 (October 2021): 110693. http://dx.doi.org/10.1016/j.commatsci.2021.110693.

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26

Koga, Guilherme Yuuki, Nick Birbilis, Guilherme Zepon, et al. "Corrosion resistant and tough multi-principal element Cr-Co-Ni alloys." Journal of Alloys and Compounds 884 (December 2021): 161107. http://dx.doi.org/10.1016/j.jallcom.2021.161107.

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27

Xu, Shuozhi, Wu-Rong Jian, Yanqing Su, and Irene J. Beyerlein. "Line-length-dependent dislocation glide in refractory multi-principal element alloys." Applied Physics Letters 120, no. 6 (2022): 061901. http://dx.doi.org/10.1063/5.0080849.

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28

Coury, Francisco G., Guilherme Zepon, and Claudemiro Bolfarini. "Multi-principal element alloys from the CrCoNi family: outlook and perspectives." Journal of Materials Research and Technology 15 (November 2021): 3461–80. http://dx.doi.org/10.1016/j.jmrt.2021.09.095.

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29

Subedi, Upadesh, Anil Kunwar, Yuri Amorim Coutinho, and Khem Gyanwali. "pyMPEALab Toolkit for Accelerating Phase Design in Multi-principal Element Alloys." Metals and Materials International 28, no. 1 (2021): 269–81. http://dx.doi.org/10.1007/s12540-021-01100-9.

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AbstractMulti-principal element alloys (MPEAs) occur at or nearby the centre of the multicomponent phase space, and they have the unique potential to be tailored with a blend of several desirable properties for the development of materials of future. The lack of universal phase diagrams for MPEAs has been a major challenge in the accelerated design of products with these materials. This study aims to solve this issue by employing data-driven approaches in phase prediction. A MPEA is first represented by numerical fingerprints (composition, atomic size difference , electronegativity , enthalpy

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30

Roy, Ankit, Prashant Singh, Ganesh Balasubramanian, and Duane D. Johnson. "Vacancy formation energies and migration barriers in multi-principal element alloys." Acta Materialia 226 (March 2022): 117611. http://dx.doi.org/10.1016/j.actamat.2021.117611.

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31

Jiang, Wentao, Tiantian Wang, Xiaohong Wang, et al. "Non-coherent nano-precipitation weakens ductile refractory multi-principal element alloys." Materials Science and Engineering: A 924 (February 2025): 147775. https://doi.org/10.1016/j.msea.2024.147775.

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32

Shargh, Ali K., Christopher D. Stiles, and Jaafar A. El-Awady. "Deep learning accelerated phase prediction of refractory multi-principal element alloys." Acta Materialia 283 (January 2025): 120558. http://dx.doi.org/10.1016/j.actamat.2024.120558.

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33

Smeltzer, Joshua A., Christopher J. Marvel, B. Chad Hornbuckle, et al. "Achieving ultra hard refractory multi-principal element alloys via mechanical alloying." Materials Science and Engineering: A 763 (August 2019): 138140. http://dx.doi.org/10.1016/j.msea.2019.138140.

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34

Gianelle, M., A. Kundu, K. P. Anderson, A. Roy, G. Balasubramanian, and Helen M. Chan. "A novel ceramic derived processing route for Multi-Principal Element Alloys." Materials Science and Engineering: A 793 (August 2020): 139892. http://dx.doi.org/10.1016/j.msea.2020.139892.

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35

Derimow, N., B. E. MacDonald, E. J. Lavernia, and R. Abbaschian. "Duplex phase hexagonal-cubic multi-principal element alloys with high hardness." Materials Today Communications 21 (December 2019): 100658. http://dx.doi.org/10.1016/j.mtcomm.2019.100658.

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36

Sahu, Sarita, Orion J. Swanson, Tianshu Li, Angela Y. Gerard, John R. Scully, and Gerald S. Frankel. "Localized Corrosion Behavior of Non-Equiatomic NiFeCrMnCo Multi-Principal Element Alloys." Electrochimica Acta 354 (September 2020): 136749. http://dx.doi.org/10.1016/j.electacta.2020.136749.

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37

Xiao, Yuan, Yu Zou, Alla S. Sologubenko, Ralph Spolenak, and Jeffrey M. Wheeler. "Size-dependent strengthening in multi-principal element, face-centered cubic alloys." Materials & Design 193 (August 2020): 108786. http://dx.doi.org/10.1016/j.matdes.2020.108786.

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38

Xu, Shuozhi, Abdullah Al Mamun, Sai Mu, and Yanqing Su. "Uniaxial deformation of nanowires in 16 refractory multi-principal element alloys." Journal of Alloys and Compounds 959 (October 2023): 170556. http://dx.doi.org/10.1016/j.jallcom.2023.170556.

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39

Besson, Rémy. "Cluster variation method for investigation of multi-principal-element metallic alloys." Journal of Alloys and Compounds 952 (August 2023): 170067. http://dx.doi.org/10.1016/j.jallcom.2023.170067.

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40

Qiu, Haochen, Xuehui Yan, Shuaishuai Wu, Wei Jiang, Baohong Zhu, and Shengli Guo. "High-Throughput Preparation and Mechanical Property Screening of Zr-Ti-Nb-Ta Multi-Principal Element Alloys via Multi-Target Sputtering." Coatings 13, no. 9 (2023): 1650. http://dx.doi.org/10.3390/coatings13091650.

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Zr-Ti-Nb-Ta alloys were synthesized in parallel via multi-target co-sputtering deposition with physical masking in a pseudo-ternary Ti-Nb-ZrTa alloy system. Sixteen alloys with distinct compositions were obtained. Comprehensive characterization of phase structure, microstructure, Young’s modulus, and nanoindentation hardness was undertaken. The Ti-Nb-ZrTa alloys exhibited two typical phase structures: a single-BCC solid-solution structure, and an amorphous structure. Nanoindentation quantification confirmed a Young’s modulus ranging from 110 to 130 GPa, alongside nanoindentation hardness spann

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41

Yesilcicek, Yasemin, Anncia Wetzel, Ozlem Ozcan, Julia Witt, and Matthias Dimper. "Corrosion and Mechanical Properties of Multi Principal Element Alloys Designed By Using Diffusion Couples." ECS Meeting Abstracts MA2023-02, no. 11 (2023): 1074. http://dx.doi.org/10.1149/ma2023-02111074mtgabs.

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The efficient exploration of novel alloy chemistries is crucial for advancing the development of new materials. Diffusion-controlled synthesis of gradient alloys is an intelligent approach for creating phase diagrams and to effectively identify potential material combinations with tailored properties. This project focusses on the design of quaternary multi-principle-element alloys (MPEAs) using diffusion couples. Our diffusion system contains an equimolar ternary alloy (FeNiCr) and additional single diffusing elements e.g. Mn and Mo. We determined the optimal temperature ranges for the diffusi

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42

Qianqian Song, Bozhao Zhang, and Jun Ding. "Atomic Strain in Body-Centered Cubic Multi-principal Element Alloys: A Computational Simulation." Acta Physica Sinica 74, no. 8 (2025): 0. https://doi.org/10.7498/aps.74.20250128.

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Multi-principal element alloys (MPEAs), also known as high-entropy alloys (HEAs), represent a class of novel materials that have garnered significant attention due to their exceptional mechanical properties, thermal stability, and resistance to wear and corrosion. These alloys are typically composed of multiple principal elements in near-equal atomic proportions, forming solid solution phases such as face-centered cubic (FCC) or body-centered cubic (BCC) structures. Despite the promising applications, a deeper understanding of the atomic-level behavior, particularly lattice distortion and atom

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43

Wang, Xueying, Dimitri Mercier, Sandrine Zanna, et al. "Origin of enhanced passivity of Cr–Fe–Co–Ni–Mo multi-principal element alloy surfaces." npj Materials Degradation 7 (February 16, 2023): 13. https://doi.org/10.1038/s41529-023-00330-z.

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Surface analysis by X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry was applied to investigate the origin of the enhanced surface passivity and resistance to a chloride-induced breakdown provided by the protective ultrathin oxide films formed on Cr–Fe–Co–Ni–Mo single-phase fcc multi-principal element alloys. A bilayer structure of the oxide films is observed with the inner barrier layer mostly constituted of Cr(III) oxide and the outer layer enriched in Cr(III) hydroxides and Mo(IV,VI) oxides. The Mo(VI) and Mo(IV) species are mainly

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44

Stoian, Andrei Bogdan, Radu Nartita, Georgeta Totea, Daniela Ionita, and Cristian Burnei. "Complex Bioactive Chitosan–Bioglass Coatings on a New Advanced TiTaZrAg Medium–High-Entropy Alloy." Coatings 13, no. 5 (2023): 971. http://dx.doi.org/10.3390/coatings13050971.

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High-entropy alloys (HEAs), also known as multicomponent or multi-principal element alloys (MPEAs), differ from traditional alloys, which are usually based only on one principal element, in that they are usually fabricated from five or more elements in large percentages related to each other, in the range of 5%–35%. Despite the usually outstanding characteristics of HEAs, based on a properly selected design, many such alloys are coated with advanced composites after their elaboration to further improve their qualities. In this study, 73Ti-20Zr-5Ta-2Ag samples were covered with chitosan and a m

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45

Das Gupta, Tibra, and Thomas John Balk. "Inhibited Surface Diffusion in Nanoporous Multi-Principal Element Alloy Thin Films Prepared by Vacuum Thermal Dealloying." Metals 14, no. 3 (2024): 289. http://dx.doi.org/10.3390/met14030289.

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Nanoporous structures with 3D interconnected networks are traditionally made by dealloying a binary precursor. Certain approaches for fabricating these materials have been applied to refractory multi-principal element alloys (RMPEAs), which can be suitable candidates for high-temperature applications. In this study, nanoporous refractory multi-principal element alloys (np-RMPEAs) were fabricated from magnesium-based thin films (VMoNbTaMg) that had been prepared by magnetron sputtering. Vacuum thermal dealloying (VTD), which involves sublimation of a higher vapor pressure element, is a novel te

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46

Singh, Sandeep Kumar, and Avinash Parashar. "Shock resistance capability of multi-principal elemental alloys as a function of lattice distortion and grain size." Journal of Applied Physics 132, no. 9 (2022): 095903. http://dx.doi.org/10.1063/5.0106637.

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This article aims to study the shock resistance capability of multi-element alloys. In this study, we utilized nonequilibrium molecular dynamics-based simulations with an embedded atom method potential to predict the deformation governing mechanism in a multi-elemental alloy system subjected to shock loading. The evolution of shock front width, longitudinal stress, shear stress, and dislocation density were investigated for different polycrystalline multi-element systems containing different mean grain sizes of 5, 10, and 18 nm, respectively. In order to quantify the effect of lattice distorti

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47

Mridha, Sanghita, Maryam Sadeghilaridjani, and Sundeep Mukherjee. "Activation Volume and Energy for Dislocation Nucleation in Multi-Principal Element Alloys." Metals 9, no. 2 (2019): 263. http://dx.doi.org/10.3390/met9020263.

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Incipient plasticity in multi-principal element alloys, CoCrNi, CoCrFeMnNi, and Al0.1CoCrFeNi was evaluated by nano-indentation and compared with pure Ni. The tests were performed at a loading rate of 70 μN/s in the temperature range of 298 K to 473 K. The activation energy and activation volume were determined using a statistical approach of analyzing the “pop-in” load marking incipient plasticity. The CoCrFeMnNi and Al0.1CoCrFeNi multi-principal element alloys showed two times higher activation volume and energy compared to CoCrNi and pure Ni, suggesting complex cooperative motion of atoms f

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48

Sadeghilaridjani, Maryam, and Sundeep Mukherjee. "High-Temperature Nano-Indentation Creep Behavior of Multi-Principal Element Alloys under Static and Dynamic Loads." Metals 10, no. 2 (2020): 250. http://dx.doi.org/10.3390/met10020250.

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Creep is a serious concern reducing the efficiency and service life of components in various structural applications. Multi-principal element alloys are attractive as a new generation of structural materials due to their desirable elevated temperature mechanical properties. Here, time-dependent plastic deformation behavior of two multi-principal element alloys, CoCrNi and CoCrFeMnNi, was investigated using nano-indentation technique over the temperature range of 298 K to 573 K under static and dynamic loads with applied load up to 1000 mN. The stress exponent was determined to be in the range

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Li, Z., and N. Birbilis. "Multi-objective Optimization-Oriented Generative Adversarial Design for Multi-principal Element Alloys." Integrating Materials and Manufacturing Innovation, April 30, 2024. http://dx.doi.org/10.1007/s40192-024-00354-6.

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AbstractThe discovery of novel alloys, such as multi-principal element alloys (MPEAs)—inclusive of the so-called high-entropy alloys—remains essential for technological advancement. Multi-principal element alloys can manifest uniquely favorable mechanical properties, but the complexity of their compositions results in their design and performance being challenging to understand. With the emergence of the materials genome concept, there is potential to pursue novel materials using computational design approaches. However, the complexity of such design often requires immense computational power

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Kumar, Jitesh, Saumya Jha, Abheepsit Raturi, et al. "Novel Alloy Design Concepts Enabling Enhanced Mechanical Properties of High Entropy Alloys." Frontiers in Materials 9 (June 6, 2022). http://dx.doi.org/10.3389/fmats.2022.868721.

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Abstract:

The emergence of High Entropy Alloys (HEAs) in the world of materials has shifted the alloy design strategy based on a single principal element to the multi-principal elements where compositional space can cover almost the entire span of the higher dimensional phase diagrams. This approach can provide advanced materials with unique properties, including high strength with sufficient ductility and fracture toughness and excellent corrosion and wear resistance for a wide range of temperatures due to the concentrated alloying that cannot be obtained by traditional microalloying based on a single

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