Effect of preliminary treatment on grain refinement of medium carbon steel using ECAP at increased temperature

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F10%3A%230000224" target="_blank" >RIV/26316919:_____/10:#0000224 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effect of preliminary treatment on grain refinement of medium carbon steel using ECAP at increased temperature

Original language description

The work deals with grain refinement of medium carbon steel with different initial microstructure modified either by thermal or thermomechanical treatment (TM) prior severe plastic deformation. In case of TM treated steel, structure refinement was conducted in two steps. Preliminary structure refinement has been achieved due to multistep open die forging process which provided total strain of 3. Uniform recrystallized structure with 2-5 ?m grain size and with nest-like pearlite colonies was obtained. Further grain refinement of samples with different initial structure was accomplished during ECAP at 400°C. The microstructure development was analyzed in dependence of effective strain introduced. The process resulted in extensive deformation of ferrite grains where mixture of subgrains and ultrafine grain was found. The tensile behavior was characterized by strength increase for both structural steel states.

Czech name

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Czech description

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Type

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

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Materials Science Forum

ISSN

1662-9752

e-ISSN

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Volume of the periodical

638-642

Issue of the periodical within the volume

January

Country of publishing house

CH - SWITZERLAND

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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