The effect of intense external influences on the structure and properties of alloys [Effetto di fattori esterni intensivi su struttura e caratteristiche delle leghe] / Maltseva L.A., Maltseva T.V., Ozerets N.N., Sharapona V.A., Levina A.V. // Metallurgia Italiana. - 2013. - V. 105, l. 1. - P. 31-34.

ISSN:

00260843

Type:

Article

Abstract:

For the production of special high-wire thin and very thin sections austenitic steel has been widely adopted. Developed carbon-free highly alloyed Fe-Cr-Ni based steel in the quenched condition has a high plasticity, manufacturability and low strength. High adaptability of these steels allowed conducting extensive plastic deformation as shear under pressure and drawing. Prerequisite for a high plasticity and adaptability of the developed steels are: their doping with low carbon, 0.03% C, as well as cobalt and nickel content, which increase the plasticity of steels. Secondly, the presence of strain-metastable austenite, which during severe plastic deformation is almost completely transformed into deformation martensite and the related TRIP-effect. Especially important is the fact that thanks to high steels manufacturability, the effect of severe plastic deformation leads to the formation of submicro- and nanocrystalline structure (mainly with high-angle misorientations at grain boundaries with high strength) in long workpieces. The aging of the deformed steels causes an additional increase of mechanical properties, which is associated with the occurrence of a supersaturated BCC solid solution (strain martensite). The resulting allocation of intermetallic phase NiAl is nanocrystalline, which is especially important in obtaining the finest wire diameters. It should be noted that ageing can be performed on finished products.

Author keywords:

Manufacturability; Plasticity; Severe plastic deformation; Strain-metastable austenite; TRIP-effect

Index keywords:

BCC solid solution; Carbon-free; Cobalt and nickels; Deformation martensites; External influences; Finished products; High plasticity; High strength; Intermetallic phase; Low carbon; Manufacturability

DOI:

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Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874276724&partnerID=40&md5=c294d484281207ff8be08ffcd66a8fee

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Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874276724&partnerID=40&md5=c294d484281207ff8be08ffcd66a8fee
Affiliations	Ural Federal University, Yekaterinburg, Russian Federation
Author Keywords	Manufacturability; Plasticity; Severe plastic deformation; Strain-metastable austenite; TRIP-effect
Correspondence Address	Maltseva, L.A.; Ural Federal University, Yekaterinburg, Russian Federation
CODEN	MITLA
Language of Original Document	Italian
Abbreviated Source Title	Metall. Ital.
Source	Scopus