High entropy brasses and bronzes – Microstructure, phase evolution and properties

Laws, Kevin J.; Crosby, Cody; Sridhar, Aarthi; Conway, Patrick L. J.; Koloadin, Leah S.; Zhao, Mo; Aron-Dine, Shifrah; Bassman, Lori

doi:10.1016/j.jallcom.2015.07.285

Cited by 59 publications

(19 citation statements)

References 28 publications

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“…The Cu-Mn-Ni ternary system with the addition of Al, Sn and Zn was explored. These alloys showed high compressive strength, ductility and hardness in comparison with standard commercial brasses 19 .…”

Section: Introductionmentioning

confidence: 94%

Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys

Sánchez

Vicario

Albizuri

et al. 2019

Sci Rep

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In this work, the design, microstructures and mechanical properties of five novel non-equiatomic lightweight medium entropy alloys were studied. The manufactured alloys were based on the Al 65 Cu 5 Mg 5 Si 15 Zn 5 X 5 and Al 70 Cu 5 Mg 5 Si 10 Zn 5 X 5 systems. The formation and presence of phases and microstructures were studied by introducing Fe, Ni, Cr, Mn and Zr. The feasibility of CALPHAD method for the design of new alloys was studied, demonstrating to be a good approach in the design of medium entropy alloys, due to accurate prediction of the phases, which were validated via X-ray diffraction and scanning electron microscopy with energy dispersive spectroscopy. In addition, the alloys were manufactured using an industrial-scale die-casting process to make the alloys viable as engineering materials. In terms of mechanical properties, the alloys exhibited moderate plastic deformation and very high compressive strength up to 644 MPa. Finally, the reported microhardness value was in the range of 200 HV 0.1 to 264 HV 0.1 , which was two to three times higher than those of commercial Al alloys.

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Section: Introductionmentioning

confidence: 94%

Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys

Sánchez

Vicario

Albizuri

et al. 2019

Sci Rep

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“…For the fifth family–CCA brasses and bronzes—the main motivation is to increase the machinability and strength of hese materials [ 18 , 35 ].…”

Section: Complex Concentrated Alloy Families and Research Trendsmentioning

confidence: 99%

Complex Concentrated Alloys for Substitution of Critical Raw Materials in Applications for Extreme Conditions

Mitrică¹,

Badea²,

Serban³

et al. 2021

Materials

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The paper is proposing a mini-review on the capability of the new complex concentrated alloys (CCAs) to substitute or reduce the use of critical raw materials in applications for extreme conditions. Aspects regarding the regulations and expectations formulated by the European Union in the most recent reports on the critical raw materials were presented concisely. A general evaluation was performed on the CCAs concept and the research directions. The advantages of using critical metals for particular applications were presented to acknowledge the difficulty in the substitution of such elements with other materials. In order to establish the level of involvement of CCAs in the reduction of critical metal in extreme environment applications, a presentation was made of the previous achievements in the field and the potential for the reduction of critical metal content through the use of multi-component compositions.

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“…The value of ¤(¦H mix ) in CoCrMo-based alloys in Table 3 was similar to those of the conventional 3d-HEAs, 1,8,9) RHEAs, 2531) and HE brasses. 61,62) This implies the possibility that the solid solution formation in alloys in Table 3 was large from the viewpoint of the parametric approach using empirical alloy parameters.…”

Section: Alloy Designmentioning

confidence: 99%

Development of Co–Cr–Mo–Fe–Mn–W and Co–Cr–Mo–Fe–Mn–W–Ag High-Entropy Alloys Based on Co–Cr–Mo Alloys

2020

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CoCr and CoCrMo-based alloys are commercially used in the industry especially for high wear resistance and superior chemical and corrosion performance in hostile environments. These alloys were widely recognized as the important metallic biomaterials. Here, the first development of CoCrMoFeMnW and CoCrMoFeMnWAg high-entropy alloys (HEAs) based on CoCrMo metallic biomaterials is reported. Ingots of six-component Co 2.6 Cr 1.2 Mo 0.2 FeMnW 0.27 (Co 41.5 Cr 19.1 Mo 3.2 Fe 16 Mn 16 W 4.3 , at%) HEAs with a minor • phase and of sevencomponent Co 4.

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High entropy brasses and bronzes – Microstructure, phase evolution and properties

Cited by 59 publications

References 28 publications

Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys

Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys

Complex Concentrated Alloys for Substitution of Critical Raw Materials in Applications for Extreme Conditions

Development of Co–Cr–Mo–Fe–Mn–W and Co–Cr–Mo–Fe–Mn–W–Ag High-Entropy Alloys Based on Co–Cr–Mo Alloys

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