- Tytuł:
- Empirical formulas for calculating Continuous Cooling Transformation diagrams
- Autorzy:
- Trzaska, J.
- Powiązania:
- https://bibliotekanauki.pl/articles/366696.pdf
- Data publikacji:
- 2019
- Wydawca:
- Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
- Tematy:
-
computational materials science
steel
regression analysis
CCT diagrams
obliczeniowa nauka o materiałach
stal
regresja
wykresy CTPc - Opis:
- Purpose: The paper presents empirical formulas for the calculation of Continuous Cooling Transformation (CCT) diagram basing on the chemical composition and austenitizing temperature. Design/methodology/approach: In the method of calculating CCT diagrams proposed in the paper, two types of tasks are solved. First task is classification and consists in determining the range of cooling rate for particular phase transformations. The second task is regression, which aims at calculating the transformations temperature, hardness and volume fraction of phases in steel. The model of CCT diagrams was developed using multiple regression and logistic regression methods. Research limitations/implications: CCT diagrams can be calculated according to the presented method, if the chemical composition of steel meets the criteria defined by the application range of the model. Practical implications: The formulas presented in the article can be used to determine the conditions for heat treatment of structural steels. Originality/value: The paper presents the method for calculating CCT diagrams of the structural steels and engineering steels, depending on their chemical composition as well as austenitizing temperature.
- Źródło:
-
Journal of Achievements in Materials and Manufacturing Engineering; 2019, 97, 1; 21-30
1734-8412 - Pojawia się w:
- Journal of Achievements in Materials and Manufacturing Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł