Microstructure of laser clad high-temperature self-lubricating wear-resistant composite coatings

X. B. Liu; C. M. Wang; L. G. Yu; H. M. Wang

doi:10.1117/12.361101

Microstructure of laser clad high-temperature self-lubricating wear-resistant composite coatings

X. B. Liu
, C. M. Wang
, L. G. Yu
, H. M. Wang

Beihang University

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

In this paper, a 5 kW cw CO₂ laser was used to fabricate a new high-temperature self-lubricating wear-resistant composite coating on austenite stainless steel 1Cr18Ni9Ti. Microstructure of the coatings was characterized by OM, SEM, XRD and EDS as functions of laser processing parameters. The hybrid composite coating consists of rapidly solidified wear-resistant primary Cr₇C₃ and eutectic Cr₂₃C₆ carbides, high-temperature self-lubricating CaAgF₄ or CaF₂ particles and the oxidation-resistant austenitic Ni-Cr matrix. Microstructure and hardness within the whole laser clad composite coating is homogeneous and the bonding to the substrate is purely metallurgical. Microhardness of the composite coating is 700-1000HV on average. The hybrid composite coatings fabricated by laser cladding are expected to have good high-temperature tribological properties.

Original language	English
Pages (from-to)	423-427
Number of pages	5
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3862
DOIs	https://doi.org/10.1117/12.361101
State	Published - 1999
Externally published	Yes
Event	Proceedings of the 1999 International Conference on Industrial Lasers (IL '99) - Wuhan, China Duration: 22 Oct 1999 → 27 Oct 1999

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@article{24a10863c8f14f52920e8485872d0b64,

title = "Microstructure of laser clad high-temperature self-lubricating wear-resistant composite coatings",

abstract = "In this paper, a 5 kW cw CO2 laser was used to fabricate a new high-temperature self-lubricating wear-resistant composite coating on austenite stainless steel 1Cr18Ni9Ti. Microstructure of the coatings was characterized by OM, SEM, XRD and EDS as functions of laser processing parameters. The hybrid composite coating consists of rapidly solidified wear-resistant primary Cr7C3 and eutectic Cr23C6 carbides, high-temperature self-lubricating CaAgF4 or CaF2 particles and the oxidation-resistant austenitic Ni-Cr matrix. Microstructure and hardness within the whole laser clad composite coating is homogeneous and the bonding to the substrate is purely metallurgical. Microhardness of the composite coating is 700-1000HV on average. The hybrid composite coatings fabricated by laser cladding are expected to have good high-temperature tribological properties.",

author = "Liu, \{X. B.\} and Wang, \{C. M.\} and Yu, \{L. G.\} and Wang, \{H. M.\}",

year = "1999",

doi = "10.1117/12.361101",

language = "英语",

volume = "3862",

pages = "423--427",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Proceedings of the 1999 International Conference on Industrial Lasers (IL '99) ; Conference date: 22-10-1999 Through 27-10-1999",

}

TY - JOUR

T1 - Microstructure of laser clad high-temperature self-lubricating wear-resistant composite coatings

AU - Liu, X. B.

AU - Wang, C. M.

AU - Yu, L. G.

AU - Wang, H. M.

PY - 1999

Y1 - 1999

N2 - In this paper, a 5 kW cw CO2 laser was used to fabricate a new high-temperature self-lubricating wear-resistant composite coating on austenite stainless steel 1Cr18Ni9Ti. Microstructure of the coatings was characterized by OM, SEM, XRD and EDS as functions of laser processing parameters. The hybrid composite coating consists of rapidly solidified wear-resistant primary Cr7C3 and eutectic Cr23C6 carbides, high-temperature self-lubricating CaAgF4 or CaF2 particles and the oxidation-resistant austenitic Ni-Cr matrix. Microstructure and hardness within the whole laser clad composite coating is homogeneous and the bonding to the substrate is purely metallurgical. Microhardness of the composite coating is 700-1000HV on average. The hybrid composite coatings fabricated by laser cladding are expected to have good high-temperature tribological properties.

AB - In this paper, a 5 kW cw CO2 laser was used to fabricate a new high-temperature self-lubricating wear-resistant composite coating on austenite stainless steel 1Cr18Ni9Ti. Microstructure of the coatings was characterized by OM, SEM, XRD and EDS as functions of laser processing parameters. The hybrid composite coating consists of rapidly solidified wear-resistant primary Cr7C3 and eutectic Cr23C6 carbides, high-temperature self-lubricating CaAgF4 or CaF2 particles and the oxidation-resistant austenitic Ni-Cr matrix. Microstructure and hardness within the whole laser clad composite coating is homogeneous and the bonding to the substrate is purely metallurgical. Microhardness of the composite coating is 700-1000HV on average. The hybrid composite coatings fabricated by laser cladding are expected to have good high-temperature tribological properties.

UR - https://www.scopus.com/pages/publications/0033334649

U2 - 10.1117/12.361101

DO - 10.1117/12.361101

M3 - 会议文章

AN - SCOPUS:0033334649

SN - 0277-786X

VL - 3862

SP - 423

EP - 427

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Proceedings of the 1999 International Conference on Industrial Lasers (IL '99)

Y2 - 22 October 1999 through 27 October 1999

ER -

Microstructure of laser clad high-temperature self-lubricating wear-resistant composite coatings

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