Worn surface and subsurface layer structure formation behavior on wear mechanism of CoCrFeMnNi high entropy alloy in different sliding conditions

Nagarjuna, Cheenepalli; You, Hong; Ahn, Su-Seong; Song, Jae Woong; Jeong, Kyung-Chai; Madavali, Babu; Song, Gian; Na, Young Sang; Won, Jong Woo; Kim, Hyoungseop; Hong, Soon‐Jik

doi:10.1016/j.apsusc.2021.149202

Cited by 47 publications

(10 citation statements)

References 32 publications

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“…Cantor alloys have been extensively studied for their tribological properties; revealing the intrinsic wear characteristics of cantor alloys is critical. Nagarjuna et al [174] examined the wear behaviour of CoCrFeMnNi HEA utilizing a ball on disc. The surface of the HEAs was scratched with some adherent debris at the start of the wear testing, as shown in figure 12.…”

Section: Tribological Characteristicsmentioning

confidence: 99%

A critical review on mechanically alloyed high entropy alloys: processing challenges and properties

Kumar

Singh

Suhane

2022

Mater. Res. Express

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High entropy alloys (HEAs) earned the attention of the scientific community since their discovery in the year 2004, while the progress in this field has been realized since the year 2010 when a drastic increase in demand for HEAs was observed due to their unique characteristics and ability to form several compositions. As universally acknowledged, the immense potential in compositions, microstructures, and properties has sparked a great interest in this field. Researchers primarily focused on equiatomic HEAs, but the paradigm eventually shifted to non-equiatomic alloys. As the research progressed, four core effects were identified as the most important aspects in enabling the distinct characteristics. Mechanical alloying (MA), followed by the sintering approach, has piqued the interest of all researchers focusing on HEA processing. Accordingly, the main objective of this review is to critically discuss mechanically alloyed HEAs in the view of mechanical properties, tribological behavior, and functional properties. Furthermore, the predominant challenges and their conceivable prospects are also deliberated that offer novelty to this review article.

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Section: Tribological Characteristicsmentioning

confidence: 99%

A critical review on mechanically alloyed high entropy alloys: processing challenges and properties

Kumar

Singh

Suhane

2022

Mater. Res. Express

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“…Nabi et al, [9] concluded that GA 3 at 33.33 ppm response on growth and yield attributing characters, different concentration of GA3 to find out the suitable variety and optimum level of gibberellic acid (GA 3 ) application which would be also suitable to cultivate As a result, the tallest plant (62.33),number of leaves and branches plant-1(28.67 and 20.07,respectively),TDM (83.99 g),CGR (1.68 cm2day-1) RGR (0.729 cm2 day-1) and NAR (1.275 cm2 day-1).yield contributing characters had also higher such as pods plant-1(11.67),length of pod (17.20 cm),seeds pod-1(16.80) 100-seed weight (12.49 g), seed yield (20.16 g plant -1 and 3139.93 kg ha-1),therefore is suggested to cultivate 33.33 ppm GA3 would be also optimum level for the better production. Nagarjuma et al [10] reported that GA 3 at100,200 ppm and SA at 100,200 ppm are applied. The application of GA 3 at 100 ppm showed highest No of pods/plant (50.73) and seed yield/plant (19.65gm), Biological yield (154.40 kg) and salicylic acid at 100 ppm showed highest No of pods/plant (43.67),seed yield/plant (19.73 gm) and Biological yield (145.87 kg).…”

Section: Literature Reviewmentioning

confidence: 99%

“…Vikram et al [13] reported that application of GA 3 at 50 ppm at flowering stage have increased plant height at harvest (45.67cm) number of branches per plant (7.50) number root nodules (10.00) dry matter accumulation (60.00g) pods per plant (64.67) seed index (20.00) seed yield (2811kg/ha) stover yield (3041kg/ha). [10] IAA applied at flowering stage with 50ppm Utpal et al, [12] NAA applied at flowering with 50 ppm Syama et al, [11], Muhammad et al, [8].…”

Section: Literature Reviewmentioning

confidence: 99%

Effect of Nipping and Plant Growth Regulator on Growth and Yield of Chick Pea (Cicer arietinum)

Mounika¹,

Singh²

2022

IJECC

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A field experiment was carried out at Crop Research Farm, Department of Agronomy, Naini Agricultural Institute, SHUATS ,Prayagraj(U.P.)in rabi 2021 to study the "Effect of nipping and plant growth regulator on growth and yield of Chick pea (Cicer arietinum)".It was consisting of three combinations of nipping and plant growth regulators. The experiment was laid out in Randomized Block Design with nine treatments each replicated thrice. The experiment results revealed that the growth parameters and yield parameters such as Plant height (23.93cm),Number of Nodules (22.00cm),Dry weight (11.41cm),Number of Branches (8.20cm), crop growth rate(16.96) Recorded highest At harvest, Significantly recorded in treatment T2 with application of Nipping and GA3 at 100ppm. Moreover, No.of pods/plant (56.40),No.of seeds/pod (1.53),Test weight(264.82),Seed Yield (3.43t/ha),Harvest index (41.34%),Gross return (154,350.00),Net return(107,252.50),and were also recorded significantly higher in the treatment T4 With application of Nipping and NAA at 50ppm among all treatments.

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“…In terms of scratch experiments in CoCrFeMnNi HEAs, Nagarjuna et al [28] pointed out that the hardness of the deformed layer showed higher than the matrix owing to grain refinement induced by sliding friction. For MD simulations about scratch in CoCrFeMnNi HEAs, Tang and Li [29] reflected that the correspondingly reduced stress concentration and less lattice deterioration helped to absorb more wearing energy before failure.…”

Section: Introductionmentioning

confidence: 99%

Atomistic study on the nano-scratch mechanism of CoCrFeMnNi high-entropy alloy at different morphology densities

Wang

Luo

Wang

et al. 2023

Mater. Res. Express

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The physical nature of the scratch behavior of CoCrFeMnNi HEA and its deformation mechanism at different morphology densities are investigated by molecular dynamics (MD) simulations. The results show that the groove morphology contributes to the reduction of surface plastic deformation and exhibits a friction-reducing effect. As the morphology density decreases, the surface deformation and atom pile-up decrease, and the plastic deformation in the scratch region decreases, resulting in a further enhancement of the friction reduction effect. The increase of scratch depth intensifies the plastic deformation of the specimens, and the average scratch coefficient of friction increases with the increase in scratch depth. The dominant plastic deformation mechanism in the scratch deformation of CoCrFeMnNi HEA with different morphology densities is the slip deformation of Shockley partial dislocations. The MD simulations are verified further by qualitatively comparing them with corresponding experimental observations of CoCrFeMnNi HEA.

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Worn surface and subsurface layer structure formation behavior on wear mechanism of CoCrFeMnNi high entropy alloy in different sliding conditions

Cited by 47 publications

References 32 publications

A critical review on mechanically alloyed high entropy alloys: processing challenges and properties

A critical review on mechanically alloyed high entropy alloys: processing challenges and properties

Effect of Nipping and Plant Growth Regulator on Growth and Yield of Chick Pea (Cicer arietinum)

Atomistic study on the nano-scratch mechanism of CoCrFeMnNi high-entropy alloy at different morphology densities

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