Temperature Field of Repetitive Laser Pulse Irradiation and its Effect on Laser Surface Hardening

Aniruddha Gupta; Ashish Kumar Nath

doi:10.4028/www.scientific.net/AMM.110-116.823

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 110-116Temperature Field of Repetitive Laser Pulse...

Temperature Field of Repetitive Laser Pulse Irradiation and its Effect on Laser Surface Hardening

Abstract:

Analytical expressions for the temperature rise in a semi-infinite workpiece due to the heating with CW and repetitive laser pulse irradiation have been derived. It has been shown that the soaking time at a temperature above the phase transformation temperature, on which the homogeneity of microstructure and the depth of hardening depend, can be increased by heating with repetitive laser pulses. Experimental results of surface hardening of high-carbon steel with repetitive laser pulses showed higher depth of hardening and better microstructure homogeneity compared to those with continuous wave laser.

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Periodical:

Applied Mechanics and Materials (Volumes 110-116)

Pages:

823-830

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.110-116.823

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Online since:

October 2011

Authors:

Aniruddha Gupta, Ashish Kumar Nath

Keywords:

Analytical Modeling, Laser Surface Hardening, Microhardness, Repetitive Laser Pulse Heating

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References

[1] M. F. Ashby, K. E. Easterling, The transformation hardening of steel surfaces by laser beams-I. Hypo-eutectoid steels, Acta Metall. vol. 32, pp.1935-1946, (1984).

DOI: 10.1016/0001-6160(84)90175-5

Google Scholar

[2] J. Meijer, I van Sparng, Optimization of laser beam transformation hardening by one single parameter, Annals of the CIRP, vol. 40, pp.183-186, (1991).

DOI: 10.1016/s0007-8506(07)61963-5

Google Scholar

[3] J. Senthil Selvan, K. Subramanian, A.K. Nath, Effect of laser surface hardening on E-18 steel, J. Mater. Process. Technol. vol 91, pp.29-36, (1999).

Google Scholar

[4] T. Miokovic, V. Schulze, O. Vohringer, D. Lohe, Influence of cyclic temperature changes on the microstructre of AISI 4140 after laser surface hardening, Acta Mater. vol. 55, pp.589-599, (2007).

DOI: 10.1016/j.actamat.2006.08.052

Google Scholar

[5] N. Parvathavarthini, R. K. Dayal, R. Kaul, P. Ganesh, J. Khare, A. K. Nath, S. K. Mishra, I. Samajdar, Novel laser surface treatment approach to suppress sensitisation in modified type 316(N) stainless steel weld metal, Sci. Technol. Weld. Joi. Vol. 13, pp.335-343, (2008).

DOI: 10.1179/174329308x299931

Google Scholar

[6] M. Kalyon, B. S. Yilbas, Repetitive laser pulse heating analysis: Pulse parameter variation effects on closed form solution, Appl. Surf. Sci. vol. 252, pp.2242-2250, (2006).

DOI: 10.1016/j.apsusc.2005.04.032

Google Scholar

[7] D. C. Montgomery, Design and Analysis of Experiments, John Wiley and Sons, New York, (2000).

Google Scholar

[8] W.M. Steen, Laser Materials Processing, 2nd Ed., Springer-Verlag, London, (1998).

Google Scholar