Results 21 to 30 of about 1,865,833 (300)
NEW TREATMENT ROUTE FOR CLOSED-DIE FORGINGS OF STEELS WITH 2.5% MANGANESE
Acta Metallurgica Slovaca, 2018 The requirements placed on closed-die-forged parts of advanced steels have been increasing recently. Such forgings demand an innovative approach to both design and heat treatment. It is important to obtain high strength and sufficient ductility in closed-
Dagmar Bublíková +3 more
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On the Q&P Potential of a Commercial Spring Steel
Metals, 2021 Over the last years heat treatment concept of “quenching and partitioning” (Q&P) has reached popularity for its ability to precisely adjust material properties to desired values. Mostly, Q&P process are applied on tailor-made materials with high purities
Markus Härtel +8 more
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The Effect of Chromium on Microstructure Development During Q-P Process
Materials Today: Proceedings, 2015 Abstract 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.
Jirková, H., Kučerová, L., Mašek, B.
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On the Variants of Thermal Process in Developing Strong and Ductile Medium Mn Steel
Frontiers in Materials, 2020 In this contribution, we investigate the influence of three heat treatments, including intercritical annealing (IA), quenching and partitioning (Q&P), and combination of IA and Q&P (IA-Q&P), on microstructure and mechanical properties of the ...
Shuai Pan, Binbin He
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Random permutations and their discrepancy process [PDF]
Discrete Mathematics & Theoretical Computer Science, 2007 Let $\sigma$ be a random permutation chosen uniformly over the symmetric group $\mathfrak{S}_n$. We study a new "process-valued" statistic of $\sigma$, which appears in the domain of computational biology to construct tests of similarity between ordered ...
Guillaume Chapuy
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Acta Metallurgica Slovaca, 2019 Various ways are sought today to increase mechanical properties of steels while maintaining their good strength and ductility. Besides effective alloying strategies, one method involves preserving a certain amount of retained austenite in a martensitic ...
Dagmar BUBLÍKOVÁ +5 more
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Effect of Quenching and Partitioning Temperatures in the Q-P Process on the Properties of AHSS with Various Amounts of Manganese and Silicon [PDF]
Materials Science Forum, 2012 The use of the combined influence of retained austenite and bainitic ferrite to improve strength and ductility has been known for many years from the treatment of multiphase steels. Recently, the very fine films of retained austenite along the martensitic laths have also become the centre of attention.
Hana Jirková +2 more
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Improving business process models using observed behavior [PDF]
, 2013 Process-aware information systems (PAISs) can be configured using a reference process model, which is typically obtained via expert interviews. Over time, however, contextual factors and system requirements may cause the operational process to start ...
Reijers, H.A.; id_orcid +24 more
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Metals, 2019 This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels.
Sebastian Härtel +7 more
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Analysis of the high order ADL(p, q) models used to describe connections between time series
Российский технологический журнал, 2020 In the paper the mathematical models describing connection between two time series are researched. At first each of them is investigated separately, and the ARIMA(p, d, q) model is constructed.
T. R. Kalugin +2 more
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