Measuring and evaluating the prior-austenite grain size of high-strength steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F18%3A43953110" target="_blank" >RIV/49777513:23210/18:43953110 - isvavai.cz</a>

Výsledek na webu

<a href="http://ictki.fsi.ujep.cz/files/ICTKI%202018%20sbornik.pdf" target="_blank" >http://ictki.fsi.ujep.cz/files/ICTKI%202018%20sbornik.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measuring and evaluating the prior-austenite grain size of high-strength steel

Popis výsledku v původním jazyce

The prior-austenite grain size significantly influences the refinement of the martensitic microstructure and therefore the mechanical, electrical and magnetic properties of a material. The accurate determination of the prioraustenite grain size is therefore very important and is a principal task of metallography. There are different metallographic techniques for determining the prior-austenite grain size which can be separated into two steps: (1) revealing the austenite grain boundaries and (2) measuring their size. The experiment described here focuses on determining the prior-austenite grain size in the martensitic microstructure of high strength steel. Samples of this steel were quenched from various temperatures to obtain different sizes of prior-austenite grains. Different techniques were implemented to reveal the austenite grain boundaries to enable the measurement of the grain size and to get the best results. The size of the prior-austenite grain was then determined and the hardness measured. The dependencies between the heat treatment sequence, microstructure and corresponding mechanical properties were established.

Název v anglickém jazyce

Measuring and evaluating the prior-austenite grain size of high-strength steel

Popis výsledku anglicky

The prior-austenite grain size significantly influences the refinement of the martensitic microstructure and therefore the mechanical, electrical and magnetic properties of a material. The accurate determination of the prioraustenite grain size is therefore very important and is a principal task of metallography. There are different metallographic techniques for determining the prior-austenite grain size which can be separated into two steps: (1) revealing the austenite grain boundaries and (2) measuring their size. The experiment described here focuses on determining the prior-austenite grain size in the martensitic microstructure of high strength steel. Samples of this steel were quenched from various temperatures to obtain different sizes of prior-austenite grains. Different techniques were implemented to reveal the austenite grain boundaries to enable the measurement of the grain size and to get the best results. The size of the prior-austenite grain was then determined and the hardness measured. The dependencies between the heat treatment sequence, microstructure and corresponding mechanical properties were established.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/LO1502" target="_blank" >LO1502: Rozvoj Regionálního technologického institutu</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

ICTKI 2018 NOVÉ POZNATKY V TECHNOLOGIÍCH A TECHNOLOGICKÉ INFORMACE 2018 - Sborník příspěvků

ISBN

978-80-7561-114-7

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

13-18

Název nakladatele

Univerzita J. E. Purkyně, Ústí nad Labem

Místo vydání

Ústí nad Labem

Místo konání akce

Kutná hora, Česká republika

Datum konání akce

11. 4. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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