The influence of wide deformation range on the austenitic transformations of the P620Q steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F19%3A10243685" target="_blank" >RIV/61989100:27360/19:10243685 - 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

The influence of wide deformation range on the austenitic transformations of the P620Q steel

Popis výsledku v původním jazyce

Based on dilatometry tests, the effect of various values of previous deformation on the kinetics of austenite transformations during the cooling of P620Q steel has been studied. Dilatometry tests have been performed with the use of the optical dilatometry module of the plastometer Gleeble 3800. The obtained results were confronted with the metallographic analyses and hardness measurements HV30. Uniaxial compression deformations were being chosen as follows: 0, 0.15, 0.35, 0.7, 1, and 2; note, these are true (logarithmic) deformations. The strain rate of 1/s was used in each case. It was verified, an increasing deformation valuecauses the growth of the ferrite and pearlite start-temperatures - especially in the areas of higher cooling rates. Based on this, the assumption of acceleration of by-diffusion-driven transformations through the previous deformation has been again verified. With the increasing of previous deformation, a bainite-start temperature was being proportionally growing in the entire range of cooling rates. Nevertheless, the effect of the increasing previous deformation was in the case of a martensite-start temperature entirely opposite.

Název v anglickém jazyce

The influence of wide deformation range on the austenitic transformations of the P620Q steel

Popis výsledku anglicky

Based on dilatometry tests, the effect of various values of previous deformation on the kinetics of austenite transformations during the cooling of P620Q steel has been studied. Dilatometry tests have been performed with the use of the optical dilatometry module of the plastometer Gleeble 3800. The obtained results were confronted with the metallographic analyses and hardness measurements HV30. Uniaxial compression deformations were being chosen as follows: 0, 0.15, 0.35, 0.7, 1, and 2; note, these are true (logarithmic) deformations. The strain rate of 1/s was used in each case. It was verified, an increasing deformation valuecauses the growth of the ferrite and pearlite start-temperatures - especially in the areas of higher cooling rates. Based on this, the assumption of acceleration of by-diffusion-driven transformations through the previous deformation has been again verified. With the increasing of previous deformation, a bainite-start temperature was being proportionally growing in the entire range of cooling rates. Nevertheless, the effect of the increasing previous deformation was in the case of a martensite-start temperature entirely opposite.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/EF17_049%2F0008399" target="_blank" >EF17_049/0008399: Rozvoj mezisektorové spolupráce RMTVC s aplikační sférou v oblasti výzkumu progresivních a inovací klasických kovových materiálů a technologií s využitím metod modelování</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2019 : conference proceedings : peer reviewed : 28th International Conference on Metallurgy and Materials : May 22nd-24th 2019, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-92-5

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

289-295

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

22. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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