OPTIMIZATION OF HEAT TREATMENT OF CLOSED-DIE FORGINGS OF 2.5% MN STEEL
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F18%3A43953018" target="_blank" >RIV/49777513:23210/18:43953018 - isvavai.cz</a>
Result on the web
<a href="https://www.metalconference.eu/cz/sbornik-metal-2018/" target="_blank" >https://www.metalconference.eu/cz/sbornik-metal-2018/</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
OPTIMIZATION OF HEAT TREATMENT OF CLOSED-DIE FORGINGS OF 2.5% MN STEEL
Original language description
The forging industry seeks ways to improve mechanical properties of forged parts without using costly alloyed steels or complicated and time-consuming post-forge heat treatment. One of the available options is Q&P processing (Quenching and Partitioning) of advanced high-strength martensitic steels. The Q&P process is characterized by rapid cooling from the soaking temperature to a quenching temperature which is between the Ms and the Mf, and subsequent reheating to and holding at a partitioning temperature. Strength levels of more than 2000 MPa and elongation above 10 % can be obtained. Since the quench needs to be interrupted between the Ms and the Mf, new alloying strategies are being developed in order to depress the Mf below 100°C. With such steels, plain quenchants could be used, including boiling water. Using material-technological modelling, several heat treatment routes involving various cooling profiles were tested on three high-strength 2.5 % Mn steels with different Ni and Mo levels. The data for constructing the first model were acquired from a real-world treatment of a forged part. Quenching the forged part in boiling water and subsequent partitioning led to a strength of 2130 MPa and elongation of 12 %. Metallographic examination and measurement of mechanical properties were carried out on the experimental steels after the treatments.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/LO1502" target="_blank" >LO1502: Development of Regional Technological Institute</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Conference Proceedings - METAL 2018 - 27th International Conference on Metallurgy and Materials
ISBN
978-80-87294-84-0
ISSN
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e-ISSN
neuvedeno
Number of pages
7
Pages from-to
634-640
Publisher name
TANGER Ltd., Keltickova 62, 710 00 Ostrava, Czech Republic, EU
Place of publication
Ostrava
Event location
Brno, Czech Republic
Event date
May 23, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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