The Effect of Chromium on Microstructure Development during Q-P Process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F15%3A43923885" target="_blank" >RIV/49777513:23210/15:43923885 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.matpr.2015.07.362" target="_blank" >http://dx.doi.org/10.1016/j.matpr.2015.07.362</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matpr.2015.07.362" target="_blank" >10.1016/j.matpr.2015.07.362</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of Chromium on Microstructure Development during Q-P Process

Popis výsledku v původním jazyce

Martensitic microstructures with a controlled fraction of retained austenite have the potential to reach high tensile strength above 1900-2000 MPa with ductility higher than 10 %. These microstructures can be obtained by using the Q&P process. The finalproperties are obtained by using a suitable alloying strategy and a precise combination of technological parameters of the process. The Q&P process with integrated incremental deformation was tested and optimized for two high-strength steels 42SiCr and 42SiMn with 0.43 % C. The 42SiCr steel contained an additional 1.3 % of chromium. A suitable austenitization temperature was determined in the first step and then quenching and partitioning temperatures and cooling rate after deformation were optimized. The results suggest that the addition of chromium has a significant influence on the mechanical properties. Tensile strength of 1367 MPa with ductility A5mm = 7 % were obtained in 42SiMn without chromium. However, the chromium content of 1

Název v anglickém jazyce

The Effect of Chromium on Microstructure Development during Q-P Process

Popis výsledku anglicky

Martensitic microstructures with a controlled fraction of retained austenite have the potential to reach high tensile strength above 1900-2000 MPa with ductility higher than 10 %. These microstructures can be obtained by using the Q&P process. The finalproperties are obtained by using a suitable alloying strategy and a precise combination of technological parameters of the process. The Q&P process with integrated incremental deformation was tested and optimized for two high-strength steels 42SiCr and 42SiMn with 0.43 % C. The 42SiCr steel contained an additional 1.3 % of chromium. A suitable austenitization temperature was determined in the first step and then quenching and partitioning temperatures and cooling rate after deformation were optimized. The results suggest that the addition of chromium has a significant influence on the mechanical properties. Tensile strength of 1367 MPa with ductility A5mm = 7 % were obtained in 42SiMn without chromium. However, the chromium content of 1

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Materials Today: Proceedings

ISBN

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ISSN

2214-7853

e-ISSN

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Počet stran výsledku

4

Strana od-do

"S627"-"S630"

Název nakladatele

Elsevier Ltd.

Místo vydání

Amsterodam

Místo konání akce

Bilbao, Španělsko

Datum konání akce

6. 7. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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