Investigation of plastic strain accommodation and recrystallization behavior in CoCrNiCu  medium-entropy alloy

Jodi, Dennis Edgard; Lee, Byoung Hun; Jang, Myeong Hyeon; Jung, Ju-Hee; Jang, Jonggwan; Kim, Dong Ho; Kim, Jeoung Han; Jeon, Jong Bae; Park, Nokeun

doi:10.1016/j.matlet.2019.06.084

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…The dislocation, twinning, phase transformation and even texture during deformation have been systematically studied [42][43][44][45][46][47] . In overcoming the trade-off between strength and ductility, various factors, including grain refinement [48,49] , heterogeneous structure [50,51] and alloying [52][53][54][55][56][57][58][59][60][61] , have been studied. In addition to their RT and CT properties, their high temperature creep [62] and oxidation resistance [63] has also been explored.…”

Section: Development Of Cocrni Alloymentioning

confidence: 99%

“…It was observed that the heterogeneity in the chemical distribution increases by doping with a trace amount of W [53] . Figure 15 shows the strain maps of the CoCrNi-3W and CoCrNi alloys.…”

Section: Substitutional Elements (Al Fe Mo W Cu Nb and Ti)mentioning

confidence: 99%

“…The gray area covers the alloys strengthened by modifying the microstructures. The dark blue area covers the alloys strengthened by optimizing the chemical composition[49,50,52,53,57,59,60,[90][91][92]105,107,108,110,115,117,120,123,129,133,141,142]…”

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confidence: 99%

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A critical review of the mechanical properties of CoCrNi-based medium-entropy alloys

Xu¹,

Wang²,

Li³

et al. 2022

Microstructures

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The CoCrFeMnNi alloy is one of the most notable first-generation high-entropy alloys and is also known as a Cantor alloy. This alloy was first proposed in 2004 and shows promising performance at cryogenic temperatures (CTs). Subsequent research has indicated that the equiatomic ternary CoCrNi medium-entropy alloy (MEA), as a subset of the Cantor alloy family, has better mechanical properties than the CoCrFeMnNi alloy. Interestingly, both the strength and ductility of the CoCrNi MEA are higher at CTs than at room temperature. CoCrNi-based alloys have attracted considerable attention in the metallic materials community and it is therefore important to generalize and summarize the latest progress in CoCrNi-based MEA research. The present review initially briefly introduces the discovery of the CoCrNi MEA. Subsequently, its tensile response and deformation mechanisms are summarized. In particular, the effects of parameters, such as critical resolved shear stress, stacking fault energy and short-range ordering, on the deformation behavior are discussed in detail. The methods for strengthening the CoCrNi MEA are then reviewed and divided into two categories, namely, modifying microstructures and adjusting chemical compositions. In addition, the mechanical performance of CoCrNi-based MEAs, including their dynamic shear properties, creep behavior and fracture toughness, is also deliberated. Finally, the development prospects of CoCrNi-based MEAs are proposed.

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Section: Development Of Cocrni Alloymentioning

confidence: 99%

“…It was observed that the heterogeneity in the chemical distribution increases by doping with a trace amount of W [53] . Figure 15 shows the strain maps of the CoCrNi-3W and CoCrNi alloys.…”

Section: Substitutional Elements (Al Fe Mo W Cu Nb and Ti)mentioning

confidence: 99%