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

^*此作品的通讯作者

材料科学与工程学院

Beihang University

科研成果: 期刊稿件 › 会议文章 › 同行评审

7 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	423-427
页数	5
期刊	Proceedings of SPIE - The International Society for Optical Engineering
卷	3862
DOI	https://doi.org/10.1117/12.361101
出版状态	已出版 - 1999
活动	Proceedings of the 1999 International Conference on Industrial Lasers (IL '99) - Wuhan, China 期限: 22 10月 1999 → 27 10月 1999

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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",

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pages = "423--427",

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

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

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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.

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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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