Laser melting of plasma nitrided Ti-6Al-4V alloy

B. S. Yilbas; J. Nickel; A. Coban; M. Sami; S. Z. Shuja; A. Aleem

doi:10.1016/S0043-1648(97)00070-7

Laser melting of plasma nitrided Ti-6Al-4V alloy

B. S. Yilbas^*
, J. Nickel
, A. Coban
, M. Sami
, S. Z. Shuja
, A. Aleem

^*Corresponding author for this work

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

46 Scopus citations

Abstract

A laser surface modification technique can be used as a part of a dublex treatment process to improve the surface properties of Ti-6Al-4V alloy. The present study is conducted to investigate the surface properties of the Ti-6Al-4V alloy due to laser melting prior to a plasma nitriding process. Consequently, nitriding is carried out to obtain the depth of the nitride zone of 30 μm. A CO₂ laser with 1.6 kW output power was used to melt the nitride layers. The wear properties of the plasma nitrided and nitrided/melted surfaces were investigated using pin-on-disc equipment while the friction coefficient was determined using a ball-on-disc machine. The nitride depth profile was measured using a nuclear analysis reaction and elemental distribution in the melted zones was investigated using μ-PIXE. Scanning electron microscopy and optical microscopy were carried out to analyze the microstructures developed before and after the laser melting process. In addition, heating and cooling rates were predicted through the electron-kinetic theory approach.

Original language	English
Pages (from-to)	140-149
Number of pages	10
Journal	Wear
Volume	212
Issue number	1
DOIs	https://doi.org/10.1016/S0043-1648(97)00070-7
State	Published - 30 Nov 1997

Bibliographical note

Funding Information:
The authors would like to acknowledge the support of the Energy Research Laboratory of the Research Institute, King Fahd University of Petroleum and Minerals.

Keywords

Laser melting
Optical microscopy
Plasma nitriding
Titanium alloy

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/S0043-1648(97)00070-7

Cite this

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title = "Laser melting of plasma nitrided Ti-6Al-4V alloy",

abstract = "A laser surface modification technique can be used as a part of a dublex treatment process to improve the surface properties of Ti-6Al-4V alloy. The present study is conducted to investigate the surface properties of the Ti-6Al-4V alloy due to laser melting prior to a plasma nitriding process. Consequently, nitriding is carried out to obtain the depth of the nitride zone of 30 μm. A CO2 laser with 1.6 kW output power was used to melt the nitride layers. The wear properties of the plasma nitrided and nitrided/melted surfaces were investigated using pin-on-disc equipment while the friction coefficient was determined using a ball-on-disc machine. The nitride depth profile was measured using a nuclear analysis reaction and elemental distribution in the melted zones was investigated using μ-PIXE. Scanning electron microscopy and optical microscopy were carried out to analyze the microstructures developed before and after the laser melting process. In addition, heating and cooling rates were predicted through the electron-kinetic theory approach.",

keywords = "Laser melting, Optical microscopy, Plasma nitriding, Titanium alloy",

author = "Yilbas, \{B. S.\} and J. Nickel and A. Coban and M. Sami and Shuja, \{S. Z.\} and A. Aleem",

note = "Funding Information: The authors would like to acknowledge the support of the Energy Research Laboratory of the Research Institute, King Fahd University of Petroleum and Minerals.",

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AU - Yilbas, B. S.

AU - Nickel, J.

AU - Coban, A.

AU - Sami, M.

AU - Shuja, S. Z.

AU - Aleem, A.

N1 - Funding Information: The authors would like to acknowledge the support of the Energy Research Laboratory of the Research Institute, King Fahd University of Petroleum and Minerals.

PY - 1997/11/30

Y1 - 1997/11/30

N2 - A laser surface modification technique can be used as a part of a dublex treatment process to improve the surface properties of Ti-6Al-4V alloy. The present study is conducted to investigate the surface properties of the Ti-6Al-4V alloy due to laser melting prior to a plasma nitriding process. Consequently, nitriding is carried out to obtain the depth of the nitride zone of 30 μm. A CO2 laser with 1.6 kW output power was used to melt the nitride layers. The wear properties of the plasma nitrided and nitrided/melted surfaces were investigated using pin-on-disc equipment while the friction coefficient was determined using a ball-on-disc machine. The nitride depth profile was measured using a nuclear analysis reaction and elemental distribution in the melted zones was investigated using μ-PIXE. Scanning electron microscopy and optical microscopy were carried out to analyze the microstructures developed before and after the laser melting process. In addition, heating and cooling rates were predicted through the electron-kinetic theory approach.

AB - A laser surface modification technique can be used as a part of a dublex treatment process to improve the surface properties of Ti-6Al-4V alloy. The present study is conducted to investigate the surface properties of the Ti-6Al-4V alloy due to laser melting prior to a plasma nitriding process. Consequently, nitriding is carried out to obtain the depth of the nitride zone of 30 μm. A CO2 laser with 1.6 kW output power was used to melt the nitride layers. The wear properties of the plasma nitrided and nitrided/melted surfaces were investigated using pin-on-disc equipment while the friction coefficient was determined using a ball-on-disc machine. The nitride depth profile was measured using a nuclear analysis reaction and elemental distribution in the melted zones was investigated using μ-PIXE. Scanning electron microscopy and optical microscopy were carried out to analyze the microstructures developed before and after the laser melting process. In addition, heating and cooling rates were predicted through the electron-kinetic theory approach.

KW - Laser melting

KW - Optical microscopy

KW - Plasma nitriding

KW - Titanium alloy

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DO - 10.1016/S0043-1648(97)00070-7

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SN - 0043-1648

VL - 212

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JO - Wear

JF - Wear

IS - 1

ER -

Laser melting of plasma nitrided Ti-6Al-4V alloy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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