Unconventional Heat and Thermo-Mechanical Treatment of Steel with High Content of Metastable Austenite Gained in Semi-Solid State

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F12%3A43917114" target="_blank" >RIV/49777513:23210/12:43917114 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Unconventional Heat and Thermo-Mechanical Treatment of Steel with High Content of Metastable Austenite Gained in Semi-Solid State

Popis výsledku v původním jazyce

Thixoforming is a Material processing in the semi-solid state enables very unusual structures to be achieved even when using conventional materials. Merely by heating a material to the semi-solid state and subsequent cooling, a significant change to phase composition and therefore mechanical properties can be achieved. Thanks to the transition through the semi-solid state during the process of minithixoforming, the ledeburitic structure of the tool steel X210Cr12 is transformed into a structure containing more than 95 % of metastable austenite. Metastable austenite is in the form of polygonal grains with an average size of 19 ?m, surrounded by a ledeburitic mesh. Afterwards this structure can be modified by another thermo-mechanical treatment. The influence of heat and thermo-mechanical treatment was compared within the experiment. Different grades of austenite decomposition can be gained by changing the temperature, e.g. troostite or alternatively the completely different martensitic

Název v anglickém jazyce

Unconventional Heat and Thermo-Mechanical Treatment of Steel with High Content of Metastable Austenite Gained in Semi-Solid State

Popis výsledku anglicky

Thixoforming is a Material processing in the semi-solid state enables very unusual structures to be achieved even when using conventional materials. Merely by heating a material to the semi-solid state and subsequent cooling, a significant change to phase composition and therefore mechanical properties can be achieved. Thanks to the transition through the semi-solid state during the process of minithixoforming, the ledeburitic structure of the tool steel X210Cr12 is transformed into a structure containing more than 95 % of metastable austenite. Metastable austenite is in the form of polygonal grains with an average size of 19 ?m, surrounded by a ledeburitic mesh. Afterwards this structure can be modified by another thermo-mechanical treatment. The influence of heat and thermo-mechanical treatment was compared within the experiment. Different grades of austenite decomposition can be gained by changing the temperature, e.g. troostite or alternatively the completely different martensitic

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GAP107%2F12%2F2600" target="_blank" >GAP107/12/2600: Vliv tváření v semi-solid stavu na vývoj struktury ocelí vyrobené práškovou metalurgií</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

COMAT 2012 : Recent trends in structural materials

ISBN

978-80-87294-38-3

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

100-104

Název nakladatele

TANGER

Místo vydání

Ostrava

Místo konání akce

Parkhotel Plzeň

Datum konání akce

21. 11. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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