The Influence of Grain Size on Hot Formability of Steel C45

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10238378" target="_blank" >RIV/61989100:27360/17:10238378 - 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

The Influence of Grain Size on Hot Formability of Steel C45

Original language description

With using of tension tests, which were performed on universal plastometer Gleeble 3800, the influence of grain size on hot formability medium-carbon steel was investigated. From investigated steel were prepared 2 sets of samples, while the booth sets were made from the same melt. The first set of samples was made from hot rolled bars. The second set of samples was made from the subsurface area of the continuously cast billet. It can be assumed that the samples prepared from a cast billet should have a relatively coarse grain structure, whereas samples made from hot rolled bars should have relatively homogenous fine grain structure. The samples with the initial deformed structural state were heated directly to the selected deformation temperatures, whereas samples with initial cast structural state were uniformly austenitized by temperature 1300 °C and then were controlled cooled down to selected deformation temperatures. All hot tensile tests were performed at uniform tension rate 1000 mm•s-1. The samples from initial deformed structural state exhibited, with a comparison of samples from initial cast structural state, the higher hot ultimate tension strength and smaller hot ductility. The interesting results of hot ductility were obtained in the two-phase low-temperature region. In the case of samples from initial cast structural state, the ductility at low-temperature two-phase area decreased, whereas in the case of a sample from the initial deformed structural state the ductility unexpectedly increase.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LO1203" target="_blank" >LO1203: Regional Materials Science and Technology Centre - Feasibility Program</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Article name in the collection

METAL 2017: conference proceedings : 26th International Conference on Metallurgy and Materials : (reviewed version) : May 24th-26th 2017, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-79-6

ISSN

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e-ISSN

neuvedeno

Number of pages

6

Pages from-to

364-369

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

May 24, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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