NDLI: Surface modification and mechanical property studies of Ti6Al4V alloy using high power diode laser in nitrogen atmosphere

Content Provider	IEEE Xplore Digital Library
Author	Ramaseshan, R. Jose, F. Polaki, S.R. Senthilselvan, J. Karunakaramoorthy, B. Sivakumar, M.
Copyright Year	2011
Description	Author affiliation: SND, IGCAR Kalpakkam, India (Ramaseshan, R.; Jose, F.; Polaki, S.R.; Senthilselvan, J.; Karunakaramoorthy, B.; Sivakumar, M.)
Abstract	Ti6Al4V alloy was surface modified by Laser surface nitridation with a high power diode laser (HDPL) in a nitrogen atmosphere in an acrylic chamber. In this report, a complete study of structure and mechanical properties of two scanning speeds (5, 10 mm/sec) presented, by keeping the power (3 kW) and nitrogen gas flow (75 l/min) as constant after a complete study of various powers and nitrogen gas flow. A complete conversion of Ti6Al4V alloy to TiN on the surface was observed by X-ray diffraction in the case of slow scanning speed (5 mm/sec), whereas unreacted Ti was observed in the fast scanning speed (10 mm/sec). The surface roughness of slow scanning speed (5 mm/sec) was larger than the fast scanning speed (10 mm/sec). Nanoindentation hardness of slow scanning speed and fast scanning speed were 18 GPa and 16 GPa, respectively. Friction coefficient of unmodified Ti6Al4V alloy was measured as 0.7, whereas slow and fast scanning speed was 0.42 and 0.62, respectively.
Starting Page	567
Ending Page	570
File Size	739283
Page Count	4
File Format	PDF
ISBN	9781467300711
e-ISBN	9781467300742
DOI	10.1109/ICONSET.2011.6168033
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-28
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High Power Diode Laser Area measurement Metals Surface roughness Chemical lasers Rough surfaces Nitrogen Surface treatment Nanoindentation hardness Friction coefficient TiN Laser Surface Nitridation Ti6Al4V
Content Type	Text
Resource Type	Article

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