Crack resistance of maraging steel at cyclic loading

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Resumo

The effect of the structure on the strength and crack resistance of maraging steel is studied at cyclic loading. The impact of dispersity of intermetallide precipitates formed during tempering on the cyclic crack resistance is considered. The paper discusses the variation in the characteristics of cyclic crack resistance of the studied steel depending on the elements of its microstructure and on the modes of quenching and ubsequent tempering. It is shown that in a maraging steel with a coarse-grained structure, there is a high level of near-threshold cyclic crack resistance, probably related with the ratio of the number of loading cycles and the size of the cyclic plastic deformation zone.

Sobre autores

Yu. Simonov

Perm National Research Polytechnic University

Email: akalet@imp.uran.ru
Rússia, Perm, 614990

M. Simonov

Perm National Research Polytechnic University

Email: akalet@imp.uran.ru
Rússia, Perm, 614990

Yu. Kaletina

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: akalet@imp.uran.ru
Rússia, Ekaterinburg, 620108

A. Kaletin

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Autor responsável pela correspondência
Email: akalet@imp.uran.ru
Rússia, Ekaterinburg, 620108

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