Surface hardening of steels by alloying with laser heating and subsequent chemical heat treatment

The necessity of providing a high set of operating properties has stimulated the development of combined technologies of surface hardening. A combination of laser alloying of low-carbon steels by nitride-forming elements (V, Cr, Mo, Al) with subsequent chemical heat treatment seems promising in this...

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Bibliographic Details
Published in:Metal science and heat treatment 1997-07, Vol.39 (7), p.285-287
Main Authors: Chudina, O V, Borovskaya, T M
Format: Article
Language:English
Subjects:
Alloy steels
Alloying
Alloying elements
Heat treatment
Lasers
Metallurgy
Residual stress
Steels
Surface hardening
Wear resistance
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Summary:The necessity of providing a high set of operating properties has stimulated the development of combined technologies of surface hardening. A combination of laser alloying of low-carbon steels by nitride-forming elements (V, Cr, Mo, Al) with subsequent chemical heat treatment seems promising in this respect. Such a combined treatment provides a favorable distribution of residual stresses, elevates considerably the microhardness of the strengthened layers, and increases the wear resistance by a factor of 1.5-3 compared to nitrided nitralloys like steel 38Kh2MYuA.[PUBLICATION ABSTRACT]
ISSN:0026-0673
1573-8973
DOI:10.1007/BF02467123