Microstructure and wear resistance of laser clad Ti5Si3/ (NiTi2+β+Ti5Si3) composite coating

Yuan Fu Liu; Hai Yun Zhao; Hua Ming Wang; Guo Ping Liu

Microstructure and wear resistance of laser clad Ti₅Si₃/ (NiTi₂+β+Ti₅Si₃) composite coating

Yuan Fu Liu
, Hai Yun Zhao
, Hua Ming Wang
, Guo Ping Liu

School of Mechanical Engineering

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

1 Scopus citations

Abstract

To improve the dry sliding wear resistance of titanium alloy, a wear resistant Ti₅Si₃ reinforced intermetallic composite coating was fabricated on the substrate of titanium alloy BT19 by laser cladding using the Ni-Ti-Si alloy powders. The composition and the microstructure of the intermetallic composite coating was investigated by OM, SEM, XRD and EDS. The wear resistance of the coating was tested under the dry sliding wear condition at room temperature. The results indicate that the laser clad composite coating is free from porous and microcracks and has a rapidly solidified homogeneous microstructure consisting of Ti₅Si₃ primary particles uniformly distributed in the NiTi₂-β-Ti₅Si₃ eutectic matrix. The laser clad Ti₅Si₃/ (NiTi₂+β+Ti₅Si₃) composite coating has high hardness and excellent wear resistance under dry sliding wear test conditions.

Original language	English
Pages (from-to)	337-340
Number of pages	4
Journal	Cailiao Kexue yu Gongyi/Material Science and Technology
Volume	10
Issue number	4
State	Published - Dec 2002

Keywords

Laser cladding
Microstructure
TiSi
Wear resistance

Cite this

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title = "Microstructure and wear resistance of laser clad Ti5Si3/ (NiTi2+β+Ti5Si3) composite coating",

abstract = "To improve the dry sliding wear resistance of titanium alloy, a wear resistant Ti5Si3 reinforced intermetallic composite coating was fabricated on the substrate of titanium alloy BT19 by laser cladding using the Ni-Ti-Si alloy powders. The composition and the microstructure of the intermetallic composite coating was investigated by OM, SEM, XRD and EDS. The wear resistance of the coating was tested under the dry sliding wear condition at room temperature. The results indicate that the laser clad composite coating is free from porous and microcracks and has a rapidly solidified homogeneous microstructure consisting of Ti5Si3 primary particles uniformly distributed in the NiTi2-β-Ti5Si3 eutectic matrix. The laser clad Ti5Si3/ (NiTi2+β+Ti5Si3) composite coating has high hardness and excellent wear resistance under dry sliding wear test conditions.",

keywords = "Laser cladding, Microstructure, TiSi, Wear resistance",

author = "Liu, \{Yuan Fu\} and Zhao, \{Hai Yun\} and Wang, \{Hua Ming\} and Liu, \{Guo Ping\}",

year = "2002",

month = dec,

language = "英语",

volume = "10",

pages = "337--340",

journal = "Cailiao Kexue yu Gongyi/Material Science and Technology",

issn = "1005-0299",

publisher = "Harbin Institute of Technology",

number = "4",

}

TY - JOUR

T1 - Microstructure and wear resistance of laser clad Ti5Si3/ (NiTi2+β+Ti5Si3) composite coating

AU - Liu, Yuan Fu

AU - Zhao, Hai Yun

AU - Wang, Hua Ming

AU - Liu, Guo Ping

PY - 2002/12

Y1 - 2002/12

N2 - To improve the dry sliding wear resistance of titanium alloy, a wear resistant Ti5Si3 reinforced intermetallic composite coating was fabricated on the substrate of titanium alloy BT19 by laser cladding using the Ni-Ti-Si alloy powders. The composition and the microstructure of the intermetallic composite coating was investigated by OM, SEM, XRD and EDS. The wear resistance of the coating was tested under the dry sliding wear condition at room temperature. The results indicate that the laser clad composite coating is free from porous and microcracks and has a rapidly solidified homogeneous microstructure consisting of Ti5Si3 primary particles uniformly distributed in the NiTi2-β-Ti5Si3 eutectic matrix. The laser clad Ti5Si3/ (NiTi2+β+Ti5Si3) composite coating has high hardness and excellent wear resistance under dry sliding wear test conditions.

AB - To improve the dry sliding wear resistance of titanium alloy, a wear resistant Ti5Si3 reinforced intermetallic composite coating was fabricated on the substrate of titanium alloy BT19 by laser cladding using the Ni-Ti-Si alloy powders. The composition and the microstructure of the intermetallic composite coating was investigated by OM, SEM, XRD and EDS. The wear resistance of the coating was tested under the dry sliding wear condition at room temperature. The results indicate that the laser clad composite coating is free from porous and microcracks and has a rapidly solidified homogeneous microstructure consisting of Ti5Si3 primary particles uniformly distributed in the NiTi2-β-Ti5Si3 eutectic matrix. The laser clad Ti5Si3/ (NiTi2+β+Ti5Si3) composite coating has high hardness and excellent wear resistance under dry sliding wear test conditions.

KW - Laser cladding

KW - Microstructure

KW - TiSi

KW - Wear resistance

UR - https://www.scopus.com/pages/publications/0038818470

M3 - 文章

AN - SCOPUS:0038818470

SN - 1005-0299

VL - 10

SP - 337

EP - 340

JO - Cailiao Kexue yu Gongyi/Material Science and Technology

JF - Cailiao Kexue yu Gongyi/Material Science and Technology

IS - 4

ER -

Microstructure and wear resistance of laser clad Ti₅Si₃/ (NiTi₂+β+Ti₅Si₃) composite coating

Abstract

Keywords

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