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MANUFACTURING TECHNOLOGY
Article . 2022 . Peer-reviewed
License: CC BY NC
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Evolution of Mechanical Properties and Microstructure in Q&P Processed Unconventional Medium-Carbon Silicon Steel and Comparison between Q&P Processing, Quenching and Tempering, and Austemperingfor

Authors: Štěpán Jeníček; Kateřina Opatová; Jan Hajšman; Ivan Vorel;

Evolution of Mechanical Properties and Microstructure in Q&P Processed Unconventional Medium-Carbon Silicon Steel and Comparison between Q&P Processing, Quenching and Tempering, and Austemperingfor

Abstract

This paper investigates the evolution of microstructure and its related mechanical properties of Q-P processed medium-carbon AHSS steel. The investigated informations were compared to the structures and mechanical properties of quenched and tempered, austempered specimens made of the same steel grade. According to the correlations between observed microstructures after Q-P, quenching and tempering, austempering the presence of bainite in Q-P processed specimens was found. The hypothesis of bainite growth durinq Q-P processing was devoleped. The experimental results show that during Q-P heat treatment the bainite transformation can occur even when the partitioning temperatures are below the temperature Ms of experimental steel.

Tento článek se zabývá vývojem mikrostruktury a s ní souvisejících mechanických vlastností středněuhlíkové AHSS oceli zpracované metodou Q-P. Zkoumané aspekty byly porovnány se strukturou a mechanickými vlastnostmi kalených a popuštěných, austemperovaných vzorků vyrobených ze stejné třídy oceli. Podle korelací mezi pozorovanými mikrostrukturami po Q-P procesu, kalení a popouštění a austemperaci byla zjištěna přítomnost bainitu ve vzorcích zpracovaných Q-P procesem. Byla navržena hypotéza o růstu bainitu během Q-P zpracování. Experimentální výsledky ukazují, že během tepelného zpracování Q-P může dojít k přeměně bainitu, i když jsou teploty přerozdělení nižší než teplota Ms experimentální oceli.

Country
Czech Republic
Keywords

bainit, martenzit, martensite, mechanické vlastnosti, bainite, mechanical properties, Q&P proces, Q&P process

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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Top 10%
Green
gold