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Scanning electron microscopy and transmission electron microscopy microstructural investigation of high‐speed tool steel after Nd:YAG pulsed laser melting
Author(s) -
KAC S.,
KUSINSKI J.,
ZIELINSKALIPIEC A.,
WRONSKA I.
Publication year - 2006
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2006.01666.x
Subject(s) - materials science , microstructure , transmission electron microscopy , laser , homogeneity (statistics) , scanning electron microscope , high speed steel , radiation , composite material , metallurgy , optics , nanotechnology , statistics , physics , mathematics
Summary This article presents the microstructure of a pulsed Nd:YAG laser‐melted high‐speed steel, namely HS6‐5‐2. The high chemical homogeneity and fine structure of the melted zone was attributed to high cooling rates due to the short duration of interaction with the Nd:YAG pulsed laser radiation and the relatively small volume of the melted material. The structure obtained in the surface layer after laser melting has a high level of hardness and shows improved wear resistance.