TiAlNb intermetallic compound coating prepared by high velocity oxy-fuel spraying

H. J. Zeng; L. Q. Zhang; J. P. Lin; S. J. Zhang; G. L. Chen

doi:10.1016/j.surfcoat.2011.07.011

TiAlNb intermetallic compound coating prepared by high velocity oxy-fuel spraying

H. J. Zeng
, L. Q. Zhang
, J. P. Lin^*
, S. J. Zhang
, G. L. Chen

^*Corresponding author for this work

University of Science and Technology Beijing

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

12 Scopus citations

Abstract

Ti_28.35Al_63.4Nb_8.25 (at.%) intermetallic compound coatings were sprayed onto 316L stainless steel substrates by HVOF processes using various parameters. By varying the grit blasting pressure between 0.11 and 0.55MPa, the effects of substrate roughness on the adhesion of TiAlNb thermal sprayed coatings were investigated. The microstructure, porosity and microhardness of the coatings were characterized by SEM, XRD, Image Analysis and Vickers hardness analysis. The tensile adhesion test (TAT) specified by ASTM C 633-79 was used to measure the tensile bonding strength of the coating. The results show that the coatings with substrate roughness of 8.33μm displayed the best combined strength. TiAlNb coatings had a lamellar microstructure with different spraying parameters. The porosity, bonding strength, microhardness of coatings were assessed in relation to the spraying processes. The thickness of bond coat on the bond strength of coatings was also discussed.

Original language	English
Pages (from-to)	178-184
Number of pages	7
Journal	Surface and Coatings Technology
Volume	206
Issue number	1
DOIs	https://doi.org/10.1016/j.surfcoat.2011.07.011
State	Published - 15 Oct 2011
Externally published	Yes

Keywords

Bond strength
High velocity oxy-fuel
Porosity
Roughness
TiAlNb intermetallic compound

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10.1016/j.surfcoat.2011.07.011

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@article{a0a50ecd0ffc499380189d3c1daa4724,

title = "TiAlNb intermetallic compound coating prepared by high velocity oxy-fuel spraying",

abstract = "Ti28.35Al63.4Nb8.25 (at.\%) intermetallic compound coatings were sprayed onto 316L stainless steel substrates by HVOF processes using various parameters. By varying the grit blasting pressure between 0.11 and 0.55MPa, the effects of substrate roughness on the adhesion of TiAlNb thermal sprayed coatings were investigated. The microstructure, porosity and microhardness of the coatings were characterized by SEM, XRD, Image Analysis and Vickers hardness analysis. The tensile adhesion test (TAT) specified by ASTM C 633-79 was used to measure the tensile bonding strength of the coating. The results show that the coatings with substrate roughness of 8.33μm displayed the best combined strength. TiAlNb coatings had a lamellar microstructure with different spraying parameters. The porosity, bonding strength, microhardness of coatings were assessed in relation to the spraying processes. The thickness of bond coat on the bond strength of coatings was also discussed.",

keywords = "Bond strength, High velocity oxy-fuel, Porosity, Roughness, TiAlNb intermetallic compound",

author = "Zeng, \{H. J.\} and Zhang, \{L. Q.\} and Lin, \{J. P.\} and Zhang, \{S. J.\} and Chen, \{G. L.\}",

year = "2011",

month = oct,

day = "15",

doi = "10.1016/j.surfcoat.2011.07.011",

language = "英语",

volume = "206",

pages = "178--184",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

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}

TY - JOUR

T1 - TiAlNb intermetallic compound coating prepared by high velocity oxy-fuel spraying

AU - Zeng, H. J.

AU - Zhang, L. Q.

AU - Lin, J. P.

AU - Zhang, S. J.

AU - Chen, G. L.

PY - 2011/10/15

Y1 - 2011/10/15

N2 - Ti28.35Al63.4Nb8.25 (at.%) intermetallic compound coatings were sprayed onto 316L stainless steel substrates by HVOF processes using various parameters. By varying the grit blasting pressure between 0.11 and 0.55MPa, the effects of substrate roughness on the adhesion of TiAlNb thermal sprayed coatings were investigated. The microstructure, porosity and microhardness of the coatings were characterized by SEM, XRD, Image Analysis and Vickers hardness analysis. The tensile adhesion test (TAT) specified by ASTM C 633-79 was used to measure the tensile bonding strength of the coating. The results show that the coatings with substrate roughness of 8.33μm displayed the best combined strength. TiAlNb coatings had a lamellar microstructure with different spraying parameters. The porosity, bonding strength, microhardness of coatings were assessed in relation to the spraying processes. The thickness of bond coat on the bond strength of coatings was also discussed.

AB - Ti28.35Al63.4Nb8.25 (at.%) intermetallic compound coatings were sprayed onto 316L stainless steel substrates by HVOF processes using various parameters. By varying the grit blasting pressure between 0.11 and 0.55MPa, the effects of substrate roughness on the adhesion of TiAlNb thermal sprayed coatings were investigated. The microstructure, porosity and microhardness of the coatings were characterized by SEM, XRD, Image Analysis and Vickers hardness analysis. The tensile adhesion test (TAT) specified by ASTM C 633-79 was used to measure the tensile bonding strength of the coating. The results show that the coatings with substrate roughness of 8.33μm displayed the best combined strength. TiAlNb coatings had a lamellar microstructure with different spraying parameters. The porosity, bonding strength, microhardness of coatings were assessed in relation to the spraying processes. The thickness of bond coat on the bond strength of coatings was also discussed.

KW - Bond strength

KW - High velocity oxy-fuel

KW - Porosity

KW - Roughness

KW - TiAlNb intermetallic compound

UR - https://www.scopus.com/pages/publications/80051472705

U2 - 10.1016/j.surfcoat.2011.07.011

DO - 10.1016/j.surfcoat.2011.07.011

M3 - 文章

AN - SCOPUS:80051472705

SN - 0257-8972

VL - 206

SP - 178

EP - 184

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 1

ER -

TiAlNb intermetallic compound coating prepared by high velocity oxy-fuel spraying

Abstract

Keywords

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