Effect of the laser heat treatment on the formation of the gradient structures in alloys based on Fe - Cr - Ni system

The possibility of producing gradient materials, i.e. materials with pre-set distribution of areas having fundamentally different physical and mechanical characteristics, with the help of laser heat treatment was investigated. Using as an example austenitic-martensitic alloys of iron-chromium-nickel...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-12, Vol.941 (1), p.12027
Main Authors: Andreev, A O, Bykovskiy, D P, Osintsev, A V, Petrovskiy, V N, Ryashko, I I, Blinova, E N, Libman, M A, Glezer, A M
Format: Article
Language:English
Subjects:
Austenite
Chromium
Ferrous alloys
Heat treating
Heat treatment
Iron
Lasers
Martensite
Martensitic transformations
Mechanical properties
Nickel
Physics
Plastic deformation
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Summary:The possibility of producing gradient materials, i.e. materials with pre-set distribution of areas having fundamentally different physical and mechanical characteristics, with the help of laser heat treatment was investigated. Using as an example austenitic-martensitic alloys of iron-chromium-nickel, subjected to cold plastic deformation led to formation of martensite, we show that using laser at the temperature higher than the temperature of reverse martensite transformation leads to the formation of areas of high-strength austenite having predetermined form inside the martensite matrix. Influence of austenite areas geometry on mechanical properties of gradient material was studied.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/941/1/012027