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Surface Ablation Of 52100 Bearing Steel Using Femtosecond Laser Irradiation

Author

Listed:
  • NIROJ MAHARJAN

    (School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore)

  • WEI ZHOU

    (School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore)

  • YU ZHOU

    (Advanced Remanufacturing and Technology Centre, 3 CleanTech Loop, Singapore 637143, Singapore)

Abstract

Laser ablation is a rapid-material removal technique with potential application in remanufacturing of bearings to clean damaged surfaces. This study reports the ablation morphology and change in surface composition of 52100 bearing steel irradiated with a femtosecond laser. A smooth ablated surface was achieved by operating the laser at fluence just above the ablation threshold, but higher fluences resulted in roughened surfaces with recast formation. Such coarse morphology is believed to result from higher energy deposition and surface melting. Minimal oxidation occurred at lower fluences. Periodic ripple patterns formed in the ablated area at low fluence; their morphology and possible formation mechanism is discussed.

Suggested Citation

  • Niroj Maharjan & Wei Zhou & Yu Zhou, 2019. "Surface Ablation Of 52100 Bearing Steel Using Femtosecond Laser Irradiation," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 26(07), pages 1-8, August.
    • Handle: RePEc:wsi:srlxxx:v:26:y:2019:i:07:n:s0218625x1850227x
    DOI: 10.1142/S0218625X1850227X
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