Evolution of texture during laser surface treatment of an austenitic manganese steel

• This work describes the evolution of microstructure and texture of an austenitic manganese steel (1.34C-13.6Mn-0.45Si-Fe, wt.%) during surface modification using a high power diode laser. Strong (002) texture has been observed on the surface of the steel with increase in interaction time. It has been found that columnar type dendrites are responsible for the strong texture which is favorably grown in the < 001 > direction perpendicular to the substrate plane. The growth of dendrites with specific crystallographic direction is governed by the interfacial energy anisotropy and thermal gradient direction. (C) 2015 Elsevier Inc. All rights reserved.

Nyckelord

Austenitic steel

Diode laser

Surface texture

Dendritic microstructure

MICROSTRUCTURE

DEPOSITION

STRENGTH

Materials Science

Multidisciplinary

Metallurgy & Metallurgical

Engineering

Materials Science

Characterization & Testing

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