Abstract

In the paper the authors provide the results of experimental study of the effect caused by introduction of nanostructured fibres of aluminium oxyhydroxide into the surface layer of austenitic steel upon its microconstituents. The authors show that, due to introduction of given fibres dendrite size is reduced and equilibrium structure is formed.

Highlights

  • Under various methods of metal surface layer formation the crystalline structure of the given layer influenced by the conditions of liquid-solid transition is one of the factors determining the quality and the properties of this layer [1].It is known that the process of nucleation can be spontaneous and induced [2]

  • In the build-up surface layer induced crystallization usually occurs at the fusion boundary where high-melting phases and microconstituents of the base metal may become nucleation centers [1]

  • In practice high-melting particles are deliberately introduced into the molten metal to increase the amount of induced nucleation centers which results in refinement of grains as the metal solidifies [1, 2]

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Summary

IOP Publishing

Series: Materials Science and Engineering 142 (2016) 012011 doi:10.1088/1757-899X/142/1/012011. M A Kuznetsov 1a, E A Zernin 1b, Cand. Sc. in Engineering, V I Danilov 1,3c, Doct. Sc. in Physics and Mathematics, S P Zhuravkov 4d, Cand. Sc. In Chemistry S V Dementyev 1e

Introduction
Published under licence by IOP Publishing Ltd
Findings
Conclusion

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