The influence of heat treatment on homogeneity of strength properties and structural peculiarities of low-carbon steel Fe-Mo-Nb-V-C processed by high-pressure torsion

A homogeneity of strength properties (microhardness) through the specimens and the peculiarities of an ultrafine-grained structure produced in low-carbon steel Fe-Mo-Nb-V-C by cold high-pressure torsion, depending on initial heat treatment of steel were studied. As a result of high-pressure torsion,...

Full description

Saved in:
Bibliographic Details
Main Authors: Astafurova, Elena G, Maier, Galina G, Koshovkina, Vera S, Chomyakova, Galina V, Tukeeva, Marina S, Melnikov, Eugene V, Naydenkin, Eugene V, Dobatkin, Sergey V, Odessky, Pavel D
Format: Conference Proceeding
Language:English
Subjects:
Carbon
Cold pressing
Heat treatment
Homogeneity
Iron
Low carbon steel
Low carbon steels
Microhardness
Molybdenum
Niobium
Normalizing (heat treatment)
Properties (attributes)
Steel structures
Torsion
Ultrafines
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A homogeneity of strength properties (microhardness) through the specimens and the peculiarities of an ultrafine-grained structure produced in low-carbon steel Fe-Mo-Nb-V-C by cold high-pressure torsion, depending on initial heat treatment of steel were studied. As a result of high-pressure torsion, the microhardness of steel was increased up to 700-770 HV (in the middle part of disk radii), and the mean (sub)grain size was reduced to ≈100 nm. Initial quenching of low-carbon steel provides a more homogeneous distribution of microhardness through the disk and the higher strength properties after high-pressure torsion in comparison with a normalizing initial state.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4898872