Synergistic improvement of pitting and wear resistance of laser powder bed fusion 420 stainless steel reinforced by size-controlled spherical cast tungsten carbides

Yiqi Zhou; Zhiyuan Huang; Shuoyang Wang; Wentao Qin; Decheng Kong; Tingting Liu; Yu Yan; Xiaogang Li; Xuanhui Qu; Dirk Engelberg; Chaofang Dong

doi:10.1016/j.corsci.2024.112342

Synergistic improvement of pitting and wear resistance of laser powder bed fusion 420 stainless steel reinforced by size-controlled spherical cast tungsten carbides

Yiqi Zhou, Zhiyuan Huang, Shuoyang Wang, Wentao Qin, Decheng Kong, Tingting Liu, Yu Yan, Xiaogang Li, Xuanhui Qu, Dirk Engelberg, Chaofang Dong

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Abstract

The spherical cast WC/W₂C is selected to produce a martensitic stainless steel-based composite using the laser powder bed fusion technique. W and C reacted with Fe and Cr, creating a strong bond between the particles and the matrix, reducing the wear rate by over 98%. W and C diffuse to the matrix, increasing the hardness over 100 HV_0.5. The interface between cast WC/W₂C and matrix is sensitive to pitting corrosion through galvanic effects. However, the formation of austenite and WO₃from spherical cast WC/W₂C decomposition improves the critical pitting potential and passive film stability.

Original language	English
Article number	112342
Journal	Corrosion Science
Volume	237
Early online date	3 Aug 2024
DOIs	https://doi.org/10.1016/j.corsci.2024.112342
Publication status	Published - 15 Aug 2024

Keywords

Laser powder bed fusion
metal matrix composite
pitting corrosion
bipolar electrochemistry
wear performance

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10.1016/j.corsci.2024.112342

dle 2nd Clean Revised SubmissionAccepted author manuscript, 15 MBLicence: CC BY

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title = "Synergistic improvement of pitting and wear resistance of laser powder bed fusion 420 stainless steel reinforced by size-controlled spherical cast tungsten carbides",

abstract = "The spherical cast WC/W2C is selected to produce a martensitic stainless steel-based composite using the laser powder bed fusion technique. W and C reacted with Fe and Cr, creating a strong bond between the particles and the matrix, reducing the wear rate by over 98%. W and C diffuse to the matrix, increasing the hardness over 100 HV0.5. The interface between cast WC/W2C and matrix is sensitive to pitting corrosion through galvanic effects. However, the formation of austenite and WO3 from spherical cast WC/W2C decomposition improves the critical pitting potential and passive film stability.",

keywords = "Laser powder bed fusion, metal matrix composite, pitting corrosion, bipolar electrochemistry, wear performance",

author = "Yiqi Zhou and Zhiyuan Huang and Shuoyang Wang and Wentao Qin and Decheng Kong and Tingting Liu and Yu Yan and Xiaogang Li and Xuanhui Qu and Dirk Engelberg and Chaofang Dong",

year = "2024",

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day = "15",

doi = "10.1016/j.corsci.2024.112342",

language = "English",

volume = "237",

journal = "Corrosion Science ",

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publisher = "Elsevier BV",

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TY - JOUR

T1 - Synergistic improvement of pitting and wear resistance of laser powder bed fusion 420 stainless steel reinforced by size-controlled spherical cast tungsten carbides

AU - Zhou, Yiqi

AU - Huang, Zhiyuan

AU - Wang, Shuoyang

AU - Qin, Wentao

AU - Kong, Decheng

AU - Liu, Tingting

AU - Yan, Yu

AU - Li, Xiaogang

AU - Qu, Xuanhui

AU - Engelberg, Dirk

AU - Dong, Chaofang

PY - 2024/8/15

Y1 - 2024/8/15

N2 - The spherical cast WC/W2C is selected to produce a martensitic stainless steel-based composite using the laser powder bed fusion technique. W and C reacted with Fe and Cr, creating a strong bond between the particles and the matrix, reducing the wear rate by over 98%. W and C diffuse to the matrix, increasing the hardness over 100 HV0.5. The interface between cast WC/W2C and matrix is sensitive to pitting corrosion through galvanic effects. However, the formation of austenite and WO3 from spherical cast WC/W2C decomposition improves the critical pitting potential and passive film stability.

AB - The spherical cast WC/W2C is selected to produce a martensitic stainless steel-based composite using the laser powder bed fusion technique. W and C reacted with Fe and Cr, creating a strong bond between the particles and the matrix, reducing the wear rate by over 98%. W and C diffuse to the matrix, increasing the hardness over 100 HV0.5. The interface between cast WC/W2C and matrix is sensitive to pitting corrosion through galvanic effects. However, the formation of austenite and WO3 from spherical cast WC/W2C decomposition improves the critical pitting potential and passive film stability.

KW - Laser powder bed fusion

KW - metal matrix composite

KW - pitting corrosion

KW - bipolar electrochemistry

KW - wear performance

U2 - 10.1016/j.corsci.2024.112342

DO - 10.1016/j.corsci.2024.112342

M3 - Article

SN - 0010-938X

VL - 237

JO - Corrosion Science

JF - Corrosion Science

M1 - 112342

ER -

Synergistic improvement of pitting and wear resistance of laser powder bed fusion 420 stainless steel reinforced by size-controlled spherical cast tungsten carbides

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