Microstructure and properties of compound layer fabricated by coincident wire-powder laser cladding on Ti6Al4V surface

Fuquan Li; Zhenzeng Gao; Liqun Li; Yanbin Chen

Microstructure and properties of compound layer fabricated by coincident wire-powder laser cladding on Ti6Al4V surface

Fuquan Li^*
, Zhenzeng Gao
, Liqun Li
, Yanbin Chen

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

13 Scopus citations

Abstract

The aim of this paper is to overcome the poor anti-wear properties such as high friction coefficient and low hardness of Ti6Al4V alloy. Cladding of metal matrix composites (MMC) layer was conducted on Ti-6Al-4V substrate by coincident wire-powder laser deposition. During the experiment, the powder was fed from a coaxial nozzle and the wire was fed from a lateral nozzle into the deposition melt pool. Microstructure of the compound layer was analyzed by SEM, EDS and XRD. Results show that the compound layer mainly comprises WC, W₂C, TiC, α-Ti and W phase. TiC, W₂C phase is formed with different morphologies in different locations of the MMC layer. W₂C, W and TiC layer can be found at the interface of WC/Ti matrix. The HV_0.2 hardness of the compound layer is 5.70 GPa, which is about 2 times of that of the substrate. The friction coefficient of MMC layer is 0.3, while that of Ti substrate is 0.5. Compared to the substrate, the friction coefficient of MMC layer declines significantly.

Original language	English
Pages (from-to)	177-182
Number of pages	6
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	46
Issue number	1
State	Published - 1 Jan 2017

Keywords

Coincident wire-powder laser deposition
Laser cladding
Microstructure
Titanium alloy
WC particle

Cite this

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title = "Microstructure and properties of compound layer fabricated by coincident wire-powder laser cladding on Ti6Al4V surface",

abstract = "The aim of this paper is to overcome the poor anti-wear properties such as high friction coefficient and low hardness of Ti6Al4V alloy. Cladding of metal matrix composites (MMC) layer was conducted on Ti-6Al-4V substrate by coincident wire-powder laser deposition. During the experiment, the powder was fed from a coaxial nozzle and the wire was fed from a lateral nozzle into the deposition melt pool. Microstructure of the compound layer was analyzed by SEM, EDS and XRD. Results show that the compound layer mainly comprises WC, W2C, TiC, α-Ti and W phase. TiC, W2C phase is formed with different morphologies in different locations of the MMC layer. W2C, W and TiC layer can be found at the interface of WC/Ti matrix. The HV0.2 hardness of the compound layer is 5.70 GPa, which is about 2 times of that of the substrate. The friction coefficient of MMC layer is 0.3, while that of Ti substrate is 0.5. Compared to the substrate, the friction coefficient of MMC layer declines significantly.",

keywords = "Coincident wire-powder laser deposition, Laser cladding, Microstructure, Titanium alloy, WC particle",

author = "Fuquan Li and Zhenzeng Gao and Liqun Li and Yanbin Chen",

year = "2017",

month = jan,

day = "1",

language = "英语",

volume = "46",

pages = "177--182",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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number = "1",

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TY - JOUR

T1 - Microstructure and properties of compound layer fabricated by coincident wire-powder laser cladding on Ti6Al4V surface

AU - Li, Fuquan

AU - Gao, Zhenzeng

AU - Li, Liqun

AU - Chen, Yanbin

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The aim of this paper is to overcome the poor anti-wear properties such as high friction coefficient and low hardness of Ti6Al4V alloy. Cladding of metal matrix composites (MMC) layer was conducted on Ti-6Al-4V substrate by coincident wire-powder laser deposition. During the experiment, the powder was fed from a coaxial nozzle and the wire was fed from a lateral nozzle into the deposition melt pool. Microstructure of the compound layer was analyzed by SEM, EDS and XRD. Results show that the compound layer mainly comprises WC, W2C, TiC, α-Ti and W phase. TiC, W2C phase is formed with different morphologies in different locations of the MMC layer. W2C, W and TiC layer can be found at the interface of WC/Ti matrix. The HV0.2 hardness of the compound layer is 5.70 GPa, which is about 2 times of that of the substrate. The friction coefficient of MMC layer is 0.3, while that of Ti substrate is 0.5. Compared to the substrate, the friction coefficient of MMC layer declines significantly.

AB - The aim of this paper is to overcome the poor anti-wear properties such as high friction coefficient and low hardness of Ti6Al4V alloy. Cladding of metal matrix composites (MMC) layer was conducted on Ti-6Al-4V substrate by coincident wire-powder laser deposition. During the experiment, the powder was fed from a coaxial nozzle and the wire was fed from a lateral nozzle into the deposition melt pool. Microstructure of the compound layer was analyzed by SEM, EDS and XRD. Results show that the compound layer mainly comprises WC, W2C, TiC, α-Ti and W phase. TiC, W2C phase is formed with different morphologies in different locations of the MMC layer. W2C, W and TiC layer can be found at the interface of WC/Ti matrix. The HV0.2 hardness of the compound layer is 5.70 GPa, which is about 2 times of that of the substrate. The friction coefficient of MMC layer is 0.3, while that of Ti substrate is 0.5. Compared to the substrate, the friction coefficient of MMC layer declines significantly.

KW - Coincident wire-powder laser deposition

KW - Laser cladding

KW - Microstructure

KW - Titanium alloy

KW - WC particle

UR - https://www.scopus.com/pages/publications/85015208019

M3 - 文章

AN - SCOPUS:85015208019

SN - 1002-185X

VL - 46

SP - 177

EP - 182

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 1

ER -

Microstructure and properties of compound layer fabricated by coincident wire-powder laser cladding on Ti6Al4V surface

Abstract

Keywords

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