Metallurgical Aspects of Laser Surface Processing of PM Cr-V Ledeburitic Steel | Zendy

Peter Jurči | Zendy; Jiří Cejp | Zendy; Jan Brajer | Zendy

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Metallurgical Aspects of Laser Surface Processing of PM Cr-V Ledeburitic Steel

Author(s) -

Peter Jurči,

Jiří Cejp,

Jan Brajer

Publication year - 2011

Publication title -

advances in materials science and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.356

H-Index - 42

eISSN - 1687-8442

pISSN - 1687-8434

DOI - 10.1155/2011/563410

Subject(s) - materials science , eutectic system , microanalysis , metallurgy , austenite , carbide , dissolution , laser , softening , optical microscope , scanning electron microscope , composite material , microstructure , optics , chemical engineering , chemistry , physics , organic chemistry , engineering

The Vanadis 6 ledeburitic-type steel was laser surface remelted. Microstructural changes and hardness in laser affected material were investigated using light microscopy, SEM, and EDS-microanalysis. It was found that the laser surface melting and subsequent rapid solidifying led to softening of the material, due to presence of retained austenite. The melting of the material begins with the transformation of M7C3-carbide into a liquid and finishes via the dissolution of primary solid solution grains. The solidification proceeded in a reverse manner while the eutectics became often so-called degenerous form

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