A comparative investigation of different overlaps of the diode laser hardening in low-Carbon steel and stainless steel

Mojtaba Karamimoghadam, Mahmoud Moradi, Mohammad Azami

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    In this paper, the effect of laser overlap on the low-carbon and stainless steel are investigated. The analyzed samples are made of AISI 4130 low-Carbon steel and AISI 410 stainless steel with 50% overlap. The used laser is an industrial high-power diode laser with a continuous wave and a maximum power of 2kW. Samples are fabricated using optimized levels for laser power, focal plane position, and laser scanning speed, and the heat-treatment process is done after that. The parameters and conditions for the laser hardening process of both samples are the same situation. Then, the microstructure analysis is done using OM and SEM. Besides, the hardness of the samples is tested in the hardening depth and width. The study shows that the hardness is improved for both samples at the overlap area, up to 762 hv for AISI 4130 and 675 hv for AISI 410. Also, in both samples the amount of ferrite phase has decreased.
    Original languageEnglish
    Article number168093
    JournalOptik
    Volume251
    Early online date6 Oct 2021
    DOIs
    Publication statusPublished - Feb 2022

    Bibliographical note

    Publisher Copyright:
    © 2021 Elsevier GmbH

    Keywords

    • Diode laser
    • Ferrite phase
    • Heat-treatment
    • Laser surface transformation hardening
    • Low-carbon steel
    • Stainless steel

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Electrical and Electronic Engineering

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