The plastometric simulation of rolling of seamless tubes from Cr-Mo steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F18%3A10240918" target="_blank" >RIV/61989100:27360/18:10240918 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The plastometric simulation of rolling of seamless tubes from Cr-Mo steel

Popis výsledku v původním jazyce

With using of anizothermal plain strain compression tests, which were performed on the Hot Deformation Simulator HDS-20, the physical simulation of rolling and following cooling of seamless tubes from steel 42CrMo4 was performed. The aim was to simulate the thermomechanical conditions during piercing as well as rolling in a pilger mill of the seamless tubes with the final diameter of 273 mm (with the wall thickness of 6.3, 20 and 40 mm) and evaluate the influence of the finish rolling temperatures (chosen in the range from 820 to 970 oC) on microstructural and mechanical properties of the investigated steel. In the case of tubes with the wall thickness of 6.3 and 20 mm the highest hardness was reached at finish rolling temperature of 820 oC and the microstructure of samples was formed by majority share of martenzite and minority share of bainite. In the case of simulation of tube rolling with the wall thickness of 40 mm the chosen finish rolling temperatures did not fundamentally influence the hardness of strained samples and final microstructure of all these samples was formed by the mixture of bainite, ferrite and pearlite.

Název v anglickém jazyce

The plastometric simulation of rolling of seamless tubes from Cr-Mo steel

Popis výsledku anglicky

With using of anizothermal plain strain compression tests, which were performed on the Hot Deformation Simulator HDS-20, the physical simulation of rolling and following cooling of seamless tubes from steel 42CrMo4 was performed. The aim was to simulate the thermomechanical conditions during piercing as well as rolling in a pilger mill of the seamless tubes with the final diameter of 273 mm (with the wall thickness of 6.3, 20 and 40 mm) and evaluate the influence of the finish rolling temperatures (chosen in the range from 820 to 970 oC) on microstructural and mechanical properties of the investigated steel. In the case of tubes with the wall thickness of 6.3 and 20 mm the highest hardness was reached at finish rolling temperature of 820 oC and the microstructure of samples was formed by majority share of martenzite and minority share of bainite. In the case of simulation of tube rolling with the wall thickness of 40 mm the chosen finish rolling temperatures did not fundamentally influence the hardness of strained samples and final microstructure of all these samples was formed by the mixture of bainite, ferrite and pearlite.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

METAL 2018 : conference proceedings : reviewed version : 27th International Conference on Metallurgy and Materials : May 23rd-25th 2018, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-84-0

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

285-290

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—