Wear behavior of HVOF-sprayed Al0.6TiCrFeCoNi high entropy alloy coatings at different temperatures

Chen, Lijia; Bobzin, Kirsten; Zhou, Zheng; Zhao, Lei; Öte, Mehmet; Königstein, Tim; Tan, Zhen; He, Dingyong

doi:10.1016/j.surfcoat.2018.11.052

Cited by 105 publications

(42 citation statements)

References 36 publications

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“…[16] First investigations of the deposition of HEAs by HVOF have been successfully conducted. [17,18] In addition, other high kinetic thermal spray DOI: 10.1002/adem.202001253 High-entropy alloy AlCrFeCoNi powder with a metastable body centered cubic (bcc) structure is produced by inert gas atomization. This state is largely preserved after processing the powder by high-velocity-oxygen-fuel (HVOF) thermal spraying.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Behavior of the High‐Velocity‐Oxygen‐Fuel Sprayed and Spark Plasma Sintered High‐Entropy Alloy AlCrFeCoNi

et al. 2021

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High‐entropy alloy AlCrFeCoNi powder with a metastable body centered cubic (bcc) structure is produced by inert gas atomization. This state is largely preserved after processing the powder by high‐velocity‐oxygen‐fuel (HVOF) thermal spraying. A heat treatment is conducted with the objective to form a duplex structure comprising a ductile face centered cubic (fcc) phase. The formation of an additional fcc phase is accompanied by a decrease in hardness and a significant improvement of wear resistance. The alternative processing route, spark plasma sintering (SPS), causes a duplex bcc and fcc structure. Detailed analyses of phase formation and wear behavior for all production routes contribute to a better understanding of microstructural effects in high‐entropy alloys.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Behavior of the High‐Velocity‐Oxygen‐Fuel Sprayed and Spark Plasma Sintered High‐Entropy Alloy AlCrFeCoNi

et al. 2021

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“…Only few studies have been carried out to examine the wear behaviour at elevated temperature. The sliding wear behaviour in the pin-on-disc test at temperatures of up to 900 °C was investigated [ 14 , 15 , 16 ]. The reciprocating wear behaviour still needs to be examined.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Wear Behaviour of Spark Plasma Sintered AlCoCrFeNiTi0.5 High-Entropy Alloy

Löbel

Lindner

Pippig

et al. 2019

Entropy

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In this study, the wear behaviour of a powder metallurgically produced AlCoCrFeNiTi0.5 high-entropy alloy (HEAs) is investigated at elevated temperatures. Spark plasma sintering (SPS) of inert gas atomised feedstock enables the production of dense bulk material. The microstructure evolution and phase formation are analysed. The high cooling rate in the atomisation process results in spherical powder with a microstructure comprising two finely distributed body-centred cubic phases. An additional phase with a complex crystal structure precipitates during SPS processing, while no coarsening of microstructural features occurs. The wear resistance under reciprocating wear conditions increases at elevated temperatures due to the formation of a protective oxide layer under atmospherical conditions. Additionally, the coefficient of friction (COF) slightly decreases with increasing temperature. SPS processing is suitable for the production of HEA bulk material. An increase in the wear resistance at elevated temperature enables high temperature applications of the HEA system AlCoCrFeNiTi0.5.

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“…The results demonstrated improved surface protection of HEA films against wear and cracking and can be efficiently utilized in knee and hip joints. Chen et al [25] fabricated Al0.6TiCrFeCoNi HEA coating through high-velocity-oxygen-fuel (HVOF) spraying in order to compute the fracture hardness and phase configurational detail. The wear behavior of coating was analyzed by using pin on disc tribometer under different temperature conditions.…”

Section: Wear Resistance Of Hea Cladding/ Coating / Substratementioning

confidence: 99%

Wear Behavior and Tribological Evolution of High Entropy Alloys

2019

IJRTE

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High entropy alloy are equiatomic and nonequiatomic complex concentrated/ multicomponent alloys which are recognized due to their distinctive mechanical and triboligical properties. A unique combination of excellent mechanical and tribological properties of high entropy alloys makes them promising candidate for variety of industrial and structural applications. The wear resistance needs to be examined for these complex concentrated alloys as only few numbers of reports and investigation are available in the field of new advanced HEAs materials. In the current research work, we identified the crucial achievements and breakthrough in the wear and tribological investigations of high entropy alloy and HEA based composites in recent years. This review article investigates the tribological behaviors of multicomponent alloys /high entropy alloys and HEA based composites which play an important role and draw a considerable attention in the present era. In view of recent developments on tribological and wear related mechanisms of HEAs for different type of industrial and structural applications, microstructure, chemical compositions, and mechanical properties are explained and reviewed in this review article.

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Wear behavior of HVOF-sprayed Al0.6TiCrFeCoNi high entropy alloy coatings at different temperatures

Cited by 105 publications

References 36 publications

Microstructure and Wear Behavior of the High‐Velocity‐Oxygen‐Fuel Sprayed and Spark Plasma Sintered High‐Entropy Alloy AlCrFeCoNi

Microstructure and Wear Behavior of the High‐Velocity‐Oxygen‐Fuel Sprayed and Spark Plasma Sintered High‐Entropy Alloy AlCrFeCoNi

High-Temperature Wear Behaviour of Spark Plasma Sintered AlCoCrFeNiTi0.5 High-Entropy Alloy

Wear Behavior and Tribological Evolution of High Entropy Alloys

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