Superior Slurry Erosion Behavior of a Casting NiCoCrFeNb0.45 Eutectic High Entropy Alloy

Jinling Lu; Zhenjiang Wang; Wei Wang; Kexuan Zhou; Feng He; Zhijun Wang

doi:10.1007/s40195-020-01070-8

Superior Slurry Erosion Behavior of a Casting NiCoCrFeNb_0.45 Eutectic High Entropy Alloy

Jinling Lu, Zhenjiang Wang, Wei Wang, Kexuan Zhou, Feng He, Zhijun Wang

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The flow passage components in hydraulic machinery will be eroded rapidly when running in sand water. The wear resistance of materials commonly used in hydraulic machinery needs to be improved to prevent the failure of hydraulic machinery. New wear-resistant materials are urgently needed to improve the service life of hydraulic machinery. Eutectic high entropy alloy (EHEA) is a new kind of alloys with in situ lamellar structure. NiCoCrFeNb_0.45 EHEA has combined excellent strength and toughness. In this study, slurry erosion tests of NiCoCrFeNb_0.45 EHEA were carried out with different impact angles and impact velocities using a rotary jet erosion test apparatus. The NiCoCrFeNb_0.45 EHEA exhibited significant slurry erosion resistance compared with medium carbon steel 1045 and stainless steel 04Cr13Ni5Mo. The erosion rate of EHEA is much slower. Compared with medium carbon steel and stainless steel, the erosion of EHEA is completed via the accumulation and removal of platelets after plowing and work hardening, accompanied by partial micro-cutting.

Original language	English
Pages (from-to)	1111-1116
Number of pages	6
Journal	Acta Metallurgica Sinica (English Letters)
Volume	33
Issue number	8
DOIs	https://doi.org/10.1007/s40195-020-01070-8
State	Published - 1 Aug 2020

Keywords

Eutectic high entropy alloy
Friction and wear
Slurry erosion

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title = "Superior Slurry Erosion Behavior of a Casting NiCoCrFeNb0.45 Eutectic High Entropy Alloy",

abstract = "The flow passage components in hydraulic machinery will be eroded rapidly when running in sand water. The wear resistance of materials commonly used in hydraulic machinery needs to be improved to prevent the failure of hydraulic machinery. New wear-resistant materials are urgently needed to improve the service life of hydraulic machinery. Eutectic high entropy alloy (EHEA) is a new kind of alloys with in situ lamellar structure. NiCoCrFeNb0.45 EHEA has combined excellent strength and toughness. In this study, slurry erosion tests of NiCoCrFeNb0.45 EHEA were carried out with different impact angles and impact velocities using a rotary jet erosion test apparatus. The NiCoCrFeNb0.45 EHEA exhibited significant slurry erosion resistance compared with medium carbon steel 1045 and stainless steel 04Cr13Ni5Mo. The erosion rate of EHEA is much slower. Compared with medium carbon steel and stainless steel, the erosion of EHEA is completed via the accumulation and removal of platelets after plowing and work hardening, accompanied by partial micro-cutting.",

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AU - Lu, Jinling

AU - Wang, Zhenjiang

AU - Wang, Wei

AU - Zhou, Kexuan

AU - He, Feng

AU - Wang, Zhijun

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The flow passage components in hydraulic machinery will be eroded rapidly when running in sand water. The wear resistance of materials commonly used in hydraulic machinery needs to be improved to prevent the failure of hydraulic machinery. New wear-resistant materials are urgently needed to improve the service life of hydraulic machinery. Eutectic high entropy alloy (EHEA) is a new kind of alloys with in situ lamellar structure. NiCoCrFeNb0.45 EHEA has combined excellent strength and toughness. In this study, slurry erosion tests of NiCoCrFeNb0.45 EHEA were carried out with different impact angles and impact velocities using a rotary jet erosion test apparatus. The NiCoCrFeNb0.45 EHEA exhibited significant slurry erosion resistance compared with medium carbon steel 1045 and stainless steel 04Cr13Ni5Mo. The erosion rate of EHEA is much slower. Compared with medium carbon steel and stainless steel, the erosion of EHEA is completed via the accumulation and removal of platelets after plowing and work hardening, accompanied by partial micro-cutting.

AB - The flow passage components in hydraulic machinery will be eroded rapidly when running in sand water. The wear resistance of materials commonly used in hydraulic machinery needs to be improved to prevent the failure of hydraulic machinery. New wear-resistant materials are urgently needed to improve the service life of hydraulic machinery. Eutectic high entropy alloy (EHEA) is a new kind of alloys with in situ lamellar structure. NiCoCrFeNb0.45 EHEA has combined excellent strength and toughness. In this study, slurry erosion tests of NiCoCrFeNb0.45 EHEA were carried out with different impact angles and impact velocities using a rotary jet erosion test apparatus. The NiCoCrFeNb0.45 EHEA exhibited significant slurry erosion resistance compared with medium carbon steel 1045 and stainless steel 04Cr13Ni5Mo. The erosion rate of EHEA is much slower. Compared with medium carbon steel and stainless steel, the erosion of EHEA is completed via the accumulation and removal of platelets after plowing and work hardening, accompanied by partial micro-cutting.

KW - Eutectic high entropy alloy

KW - Friction and wear

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Superior Slurry Erosion Behavior of a Casting NiCoCrFeNb_0.45 Eutectic High Entropy Alloy

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