Cavitation erosion behavior of laser gas nitrided Ti and Ti6Al4V alloy

Hau Chung Man; Z. D. Cui; Tai Man Yue; F. T. Cheng

doi:10.1016/S0921-5093(03)00062-5

Cavitation erosion behavior of laser gas nitrided Ti and Ti6Al4V alloy

Hau Chung Man, Z. D. Cui, Tai Man Yue, F. T. Cheng

Research output: Journal article publication › Journal article › Academic research › peer-review

88 Citations (Scopus)

Abstract

A CW 2 kW neodymium-doped yttrium-aluminum-garnet (Nd-YAG) laser was used to carry out the gas nitriding process on commercial pure titanium and Ti6Al4V alloy. The microstructure, surface appearance, hardness depth profile and the cavitation erosion behavior of the nitrided samples in 3.5% NaCl solution were examined. The microstructure of the nitrided layer is mainly composed of TiN dendrites, of which the density gradually decreases towards the interface between the nitrided layer and the substrate. The cavitation erosion resistance of the nitrided samples was significantly improved as compared with the untreated samples. Increase in the surface hardness and the fine dendritic structure of the TiN layer contribute to the significantly enhanced cavitation erosion performance of Ti and Ti6Al4V alloy.

Original language	English
Pages (from-to)	167-173
Number of pages	7
Journal	Materials Science and Engineering A
Volume	355
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-5093(03)00062-5
Publication status	Published - 25 Aug 2003

Keywords

Cavitation erosion
Laser gas nitriding
Surface hardness
Ti
Ti alloy

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

More information

10.1016/S0921-5093(03)00062-5

Cite this

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title = "Cavitation erosion behavior of laser gas nitrided Ti and Ti6Al4V alloy",

abstract = "A CW 2 kW neodymium-doped yttrium-aluminum-garnet (Nd-YAG) laser was used to carry out the gas nitriding process on commercial pure titanium and Ti6Al4V alloy. The microstructure, surface appearance, hardness depth profile and the cavitation erosion behavior of the nitrided samples in 3.5% NaCl solution were examined. The microstructure of the nitrided layer is mainly composed of TiN dendrites, of which the density gradually decreases towards the interface between the nitrided layer and the substrate. The cavitation erosion resistance of the nitrided samples was significantly improved as compared with the untreated samples. Increase in the surface hardness and the fine dendritic structure of the TiN layer contribute to the significantly enhanced cavitation erosion performance of Ti and Ti6Al4V alloy.",

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author = "Man, {Hau Chung} and Cui, {Z. D.} and Yue, {Tai Man} and Cheng, {F. T.}",

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T1 - Cavitation erosion behavior of laser gas nitrided Ti and Ti6Al4V alloy

AU - Man, Hau Chung

AU - Cui, Z. D.

AU - Yue, Tai Man

AU - Cheng, F. T.

PY - 2003/8/25

Y1 - 2003/8/25

N2 - A CW 2 kW neodymium-doped yttrium-aluminum-garnet (Nd-YAG) laser was used to carry out the gas nitriding process on commercial pure titanium and Ti6Al4V alloy. The microstructure, surface appearance, hardness depth profile and the cavitation erosion behavior of the nitrided samples in 3.5% NaCl solution were examined. The microstructure of the nitrided layer is mainly composed of TiN dendrites, of which the density gradually decreases towards the interface between the nitrided layer and the substrate. The cavitation erosion resistance of the nitrided samples was significantly improved as compared with the untreated samples. Increase in the surface hardness and the fine dendritic structure of the TiN layer contribute to the significantly enhanced cavitation erosion performance of Ti and Ti6Al4V alloy.

AB - A CW 2 kW neodymium-doped yttrium-aluminum-garnet (Nd-YAG) laser was used to carry out the gas nitriding process on commercial pure titanium and Ti6Al4V alloy. The microstructure, surface appearance, hardness depth profile and the cavitation erosion behavior of the nitrided samples in 3.5% NaCl solution were examined. The microstructure of the nitrided layer is mainly composed of TiN dendrites, of which the density gradually decreases towards the interface between the nitrided layer and the substrate. The cavitation erosion resistance of the nitrided samples was significantly improved as compared with the untreated samples. Increase in the surface hardness and the fine dendritic structure of the TiN layer contribute to the significantly enhanced cavitation erosion performance of Ti and Ti6Al4V alloy.

KW - Cavitation erosion

KW - Laser gas nitriding

KW - Surface hardness

KW - Ti

KW - Ti alloy

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DO - 10.1016/S0921-5093(03)00062-5

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EP - 173

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

IS - 1-2

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Cavitation erosion behavior of laser gas nitrided Ti and Ti6Al4V alloy

Abstract

Keywords

ASJC Scopus subject areas

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