Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Laser & Optoelectronics Progress, Volume. 56, Issue 21, 211402(2019)

Microscopic Characteristic Analysis and Crack Suppression of Laser-Surface Remelting of Vermicular-Graphite Cast-Iron Valve Seats

Ming Pang* and Wendan Tan
Author Affiliations
  • Airport College, Civil Aviation University of China, Tianjin 300300, China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
    Equations (0)
    References (18)
    Cited By (1)
    Tools
    Paper Information
    Topics
    Figures & Tables(8)
    Substrate structure of vermicular-graphite cast-iron

    Fig. 1. Substrate structure of vermicular-graphite cast-iron

    Download full size
    Macroscopic morphology of laser remelting zone

    Fig. 2. Macroscopic morphology of laser remelting zone

    Download full size
    Microstructures of central region of laser remelting layer. (a) V=5 mm/s; (b) V=3 mm/s; (c) V=1 mm/s

    Fig. 3. Microstructures of central region of laser remelting layer. (a) V=5 mm/s; (b) V=3 mm/s; (c) V=1 mm/s

    Download full size
    Microstructures at interface between laser remelting layer and phase-transformation hardening layer. (a) V=5 mm/s; (b) V=3 mm/s; (c) V=1 mm/s

    Fig. 4. Microstructures at interface between laser remelting layer and phase-transformation hardening layer. (a) V=5 mm/s; (b) V=3 mm/s; (c) V=1 mm/s

    Download full size
    Hardness distribution from substrate to top of remelting layer

    Fig. 5. Hardness distribution from substrate to top of remelting layer

    Download full size
    Crack numbers under variable laser parameters. (a) Variable laser scanning velocities; (b) variable laser powers

    Fig. 6. Crack numbers under variable laser parameters. (a) Variable laser scanning velocities; (b) variable laser powers

    Download full size
    Cracks on surface of remelting zone. (a) V=1 mm/s; (b) V=12 mm/s

    Fig. 7. Cracks on surface of remelting zone. (a) V=1 mm/s; (b) V=12 mm/s

    Download full size

    • Table 1. Chemical compositions of vermicular-graphite cast-iron RuT300 (mass fraction, %)

      View table

      Table 1. Chemical compositions of vermicular-graphite cast-iron RuT300 (mass fraction, %)

      ElementCSiMnPSFe
      Content3.5-3.92.2-2.80.4-0.8<0.06<0.04Bal.
    Tools

    Get Citation

    Copy Citation Text

    Ming Pang, Wendan Tan. Microscopic Characteristic Analysis and Crack Suppression of Laser-Surface Remelting of Vermicular-Graphite Cast-Iron Valve Seats[J]. Laser & Optoelectronics Progress, 2019, 56(21): 211402

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Lasers and Laser Optics

    Received: Feb. 20, 2019

    Accepted: May. 5, 2019

    Published Online: Nov. 2, 2019

    The Author Email: Ming Pang (pangming1980@126.com)

    DOI:10.3788/LOP56.211402

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology