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TECHNICAL PAPERS

Modelling and Experimental Study Into the Laser Assisted Nitriding of Ti-6Al-4V Alloy

[+] Author and Article Information
B. S. Yilbas, I. Z. Naqavi, S. Z. Shuja

ME Department, KFUPM, Dhahran, Saudi Arabia

J. Manuf. Sci. Eng 124(4), 863-874 (Oct 23, 2002) (12 pages) doi:10.1115/1.1511171 History: Received July 01, 2001; Revised January 01, 2002; Online October 23, 2002
Copyright © 2002 by ASME
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References

Figures

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(a) Temporal variation of concentration at different points along axis of symmetry for two time exponentially varying pulses (b) Temporal variation of rate of change of concentration at different points along axis of symmetry for two time exponentially varying pulses
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(a)Variation of concentration along axial direction for different heating periods with two time exponentially varying pulses (b) Variation of concentration gradient along axial direction for different heating periods with two time exponentially varying pulses
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Variation of diffusion coefficient along axial direction for different heating periods with two time exponentially varying pulses
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Variation of concentration along radial direction just below surface for different heating periods with two time exponentialy varying pulses
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Surface plot for equivalent stress using two pulses
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XRD result of laser treated surface
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SEM micrograph of laser treated region
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Nitrogen depth profile obtained from XPS spectrum
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(a) Schematic view of laser beam profile and mesh points (n=480 and m=500) (b) Schematic view of a mushy cell
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XPS spectrum of nitrogen gas assisted laser treated surface
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Temporal variation of peak intensity for time exponentially varying pulses
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Temperature contours for two time exponential input pulses
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(a) Temporal variation of temperature at different points along axis of symmetry for two time exponentially varying pulses (b) Temporal variation of rate of temperature change at different points along axis of symmetry for two time exponentially varying pulses
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(a) Variation of temperature along axial direction at different time steps for two time exponentially varying pulses (b) Variation of temperature gradient along axial direction at different time steps for two time exponentially varying pulses
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Variation of temperature along radial direction for different heating periods with two time exponentially varying pulses
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Diffusion coefficient contours for two time exponential input pulse
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Concentration contours for two time exponential input pulses

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