Surface hardening of steel with a low-power laser

A. Hussain; R. Akhtar; S. Shahdin; M. Ashraf Atta

doi:10.1117/12.425159

9 April 2001 Surface hardening of steel with a low-power laser

A. Hussain, R. Akhtar, S. Shahdin, M. Ashraf Atta

Proceedings Volume 4397, 11th International School on Quantum Electronics: Laser Physics and Applications; (2001) https://doi.org/10.1117/12.425159
Event: 11th International School on Quantum Electronics: Laser Physics and Applications, 2000, Varna, Bulgaria

Abstract

A locally developed 200 W CO₂ laser with multi-mode output was used to study the surface hardening of different steels. Maximum hardness was achieved in the region where the microstructure was transformed to martensite. The microhardness was found to increase with carbon content. In a new experiment, AISI 1045 steel specimen was first annealed and then treated with laser. The microhardness of annealed samples was found to be higher than the untreated samples. Preliminary results are presented.

Citation Download Citation

A. Hussain, R. Akhtar, S. Shahdin, and M. Ashraf Atta "Surface hardening of steel with a low-power laser", Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); https://doi.org/10.1117/12.425159

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