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Title: Laser gas nitriding of Ti6Al4V alloy
Authors: Zhang, CH
Zhang, S
Man, HC 
Liu, CS
Cai, QK
Keywords: Abrasive wear
Laser gas nitriding
Ti6Al4V alloy
TiN coating
Issue Date: 2004
Publisher: 中國學術期刊 (光盤版) 電子雜誌社
Source: 光電子, 激光 (Journal of optoelectronics. Laser), 2004, v. 15, no. 8, p. 946-950 How to cite?
Journal: 光電子, 激光 (Journal of optoelectronics. Laser) 
Abstract: Laser surface gas nitriding is an attractive method to enhance surface hardness and wear resistance of Ti6Al4V alloy. Laser gas nitriding processing of the Ti6Al4V alloy was investigated by using a 2 kW continuous wave Nd-YAG laser under an N2 environment. In the laser affected zone, neither micro-cracking nor porotic structure were observed. SEM and XRD were carried out for laser surface gas nitrided characterization and ball-on-disk tests were conducted to measure the abrasive wear behavior of the resulting surfaces. The results of examination show that the density of a fine dendritic structure is distributed with grads from surface to inside, and microhardness of laser nitration case is Hv0.2 1500. The wear performance of TI6Al4V is improved obviously.
ISSN: 1005-0086
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