Refinement of steel microstructure by free-forging

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F06%3A00000027" target="_blank" >RIV/49777513:23210/06:00000027 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Refinement of steel microstructure by free-forging

Original language description

It is well known that severe plastic deformation of technical alloys can result in microstructure refinement and improvement of mechanical properties. In this study severe hot deformation was applied on low alloyed 0.2C-1.5Mn-2Si-0.05Nb steel and austenitic 0.07C-18Cr-2Mn.-10Ni steel. Cast bars were annealed and processed in a full-hydraulic press. Different temperatures of preheating, dwells and strain levels were applied. Between individual blows specimens were rotated at 90° or 45°. Microstructure was characterised using optical metallography, scanning and transmission electron microscopy. After optimization of processing fine grained structures with convenient phase composition were obtained. Low alloyed steel consisted of ferritic-bainitic microstructure with high content of retained austenite. In the case of austenitic steel recrystallisation annealing had to be included at the end of processing in order to obtain uniform grain size in the whole volume of specimens.

Czech name

Zjemnění mikrostruktury oceli volným kováním

Czech description

Nízkolegovaná ocel se skládá z feriticko-bainitické struktury s s vysokým obsahem zbytkového austenitu. Pro z

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

—

Project

<a href="/en/project/GA106%2F02%2F1521" target="_blank" >GA106/02/1521: Ultrafine microstructures in metal materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Achievements in Materials and Manufacturing Engineering

ISSN

1734-8412

e-ISSN

—

Volume of the periodical

—

Issue of the periodical within the volume

—

Country of publishing house

PL - POLAND

Number of pages

8

Pages from-to

17

UT code for WoS article

—

EID of the result in the Scopus database

—