Rights statement: This is the author’s version of a work that was accepted for publication in Surface and Coatings Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface and Coatings Technology, 395, 2020 DOI: 10.1016/j.surfcoat.2020.125810
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Microstructure, oxidation resistance and mechanical properties of stellite 12 composite coating doped with submicron TiC/B4C by laser cladding
AU - Cheng, Q.
AU - Shi, H.
AU - Zhang, P.
AU - Yu, Z.
AU - Wu, D.
AU - He, S.
AU - Tian, Y.
N1 - This is the author’s version of a work that was accepted for publication in Surface and Coatings Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface and Coatings Technology, 395, 2020 DOI: 10.1016/j.surfcoat.2020.125810
PY - 2020/8/15
Y1 - 2020/8/15
N2 - Stellite 12 and Ti/B4C composite coatings were successfully fabricated on the surface of 304 stainless steel substrates by laser cladding. The effect of Ti/B4C with different mass fractions on the structure and properties of Stellite 12 coating were studied. The properties and the growth mode of the coating were analyzed. The results show that the Stellite 12 coating was mainly composed of face-centered cubic γ-Co and Cr7C3. With the addition of Ti/B4C, TiC submicron particle phase was synthesized in situ in the coatings. Residual B4C as a heterogeneous nucleus particle, forming a submicron microstructure TiC/B4C strengthening phase, and the particle size gradually decreases. The TiC/B4C particles can refine the grains of the coatings. The micro-hardness of the coating gradually increased with the increase of Ti/B4C, and the highest were 650 HV. The wear resistance and oxidation resistance of the coatings gradually increased with the increase of Ti/B4C. © 2020
AB - Stellite 12 and Ti/B4C composite coatings were successfully fabricated on the surface of 304 stainless steel substrates by laser cladding. The effect of Ti/B4C with different mass fractions on the structure and properties of Stellite 12 coating were studied. The properties and the growth mode of the coating were analyzed. The results show that the Stellite 12 coating was mainly composed of face-centered cubic γ-Co and Cr7C3. With the addition of Ti/B4C, TiC submicron particle phase was synthesized in situ in the coatings. Residual B4C as a heterogeneous nucleus particle, forming a submicron microstructure TiC/B4C strengthening phase, and the particle size gradually decreases. The TiC/B4C particles can refine the grains of the coatings. The micro-hardness of the coating gradually increased with the increase of Ti/B4C, and the highest were 650 HV. The wear resistance and oxidation resistance of the coatings gradually increased with the increase of Ti/B4C. © 2020
KW - Laser cladding
KW - Microstructure
KW - Oxidation
KW - Stellite composite coating
KW - Sub-micron Ti/B4C
KW - Wear
KW - Boron carbide
KW - Chromium compounds
KW - Inorganic coatings
KW - Microhardness
KW - Oxidation resistance
KW - Particle size
KW - Stellite
KW - Titanium carbide
KW - Wear resistance
KW - 304 stainless steel
KW - Different mass
KW - Face-centered cubic
KW - Growth modes
KW - Heterogeneous nucleus
KW - Strengthening phase
KW - Structure and properties
KW - Sub-micron particles
KW - Composite coatings
U2 - 10.1016/j.surfcoat.2020.125810
DO - 10.1016/j.surfcoat.2020.125810
M3 - Journal article
VL - 395
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
M1 - 125810
ER -