An Assessment of the Si Mobility and the Application to Phase Transformations in Silicon Steels
-
Peter Franke
Abstract
The mobilities for diffusion in Fe – Si alloys with bcc and fcc structure have been assessed using the DICTRA software: In the bcc phase the mobilities of both elements are determined as functions of temperature and composition. In the fcc phase the mobility of Si is evaluated as a function of temperature. Using these parameters and the data for carbon diffusion from a database, the kinetics of ferrite growth from Si-containing austenite is calculated and compared with experimental results.
Abstract
Die Beweglichkeiten für Diffusion in Fe–Si-Legierungen mit bcc und fcc Struktur sind mit dem DICTRA Programm ausgewertet worden. In der bcc-Phase werden die Beweglichkeiten beider Elemente als Funktion von Temperatur und Zusammensetzung ermittelt. In der fcc-Phase wird die Beweglichkeit von Si als Funktion der Temperatur ausgewertet. Unter Verwendung dieser Parameter und der Daten für Kohlenstoffdiffusion aus einer Datenbank, wird die Kinetik des Ferritwachstums in Si-haltigem Austenit berechnet und mit experimentellen Ergebnissen verglichen.
Acknowledgements
The authors wish to acknowledge the ‘Deutsche Forschungsgemeinschaft’ for their financial support.
Literature
1 Andersson, J.-O.; Höglund, L.; Jönsson, B.; Ågren, J.: in: G.R. Purdy (ed.), Fundamentals and Applications of Ternary Diffusion, Pergamon Press, New York (1990) 153 – 163.10.1016/B978-0-08-040412-7.50023-2Suche in Google Scholar
2 Andersson, J.-O.; Ågren, J.: J. Appl. Phys. 72 (1992) 1350 – 1355.10.1063/1.351745Suche in Google Scholar
3 Lacaze, J.; Sundman, B.: Metall. Trans. A 22A (1990) 2211 – 2223.Suche in Google Scholar
4 Fridberg, J.; Torndahl, L.-E.; Hillert, M.: Jernkont. Ann. 153 (1969) 263 – 276.Suche in Google Scholar
5 Jönsson, B.: Z. Metallkd. 83 (1992) 349 – 355.Suche in Google Scholar
6 Batz, W.; Mead, H.W.; Birchenall, C.E.: J. Metals 4 (1572) 1070.Suche in Google Scholar
7 Krishtal, M.A.; Mokrova, A.M.: Diffusion Data 3, Diffusion Information Center, Cleveland, OH (1969) 278.Suche in Google Scholar
8 Bergner, D.; Khaddour, Y.; Lorx, S.: Defect and Diffusion Forum 66 –69 (1989) 1407 – 1412.Suche in Google Scholar
9 Onishi, M.; Mitani, H.: as Ref. [7] 140.Suche in Google Scholar
10 Mills, B.; Walker, G.K.; Leak, G.M.: Phil. Mag. 12 (1965) 939 – 942.10.1080/14786436508228123Suche in Google Scholar
11 De González, C.O.; De Reca, N.E.W.: J. Phys. Chem. Solids 32 (1971) 1067 – 1074.10.1016/S0022-3697(71)80351-7Suche in Google Scholar
12 Mirani, H.V.M.; Harthoorn, H.; Zuurendonk, T.J.; Helmerhorst,S.J.; De Vries, G.: phys. stat. sol. (a) 29 (1975) 115 – 127.10.1002/pssa.2210290113Suche in Google Scholar
13 Million, B.: Czech. J. Phys. B 27 (1977) 928 –934.10.1007/BF01588941Suche in Google Scholar
14 Jönsson, B.: personal communication.Suche in Google Scholar
15 Askill, J.: Tracer Diffusion Data for Metals, Alloys, and Simple Oxides, Plenum Press, New York (1970).10.1007/978-1-4684-6075-9Suche in Google Scholar
16 Purdy, G.R.; Weichert, D.H.; Kirkaldy, J.S.: Trans. Metall. Soc. AIME 230 (1964) 1025 – 1034.Suche in Google Scholar
17 Zurek, C.; Sachova, E.; Hougardy, H.P.: Final Res. Rep., Project COSMOS, Düsseldorf (1993).Suche in Google Scholar
© 1997 Carl Hanser Verlag, München
Artikel in diesem Heft
- Frontmatter
- Aufsätze
- Automatic Determination of Dendritic Arm Spacing in Directionally Solidified Matters
- Microstructure and Mechanical Properties of Titanium Castings
- Microstructural Features Controlling the Dry Sliding Wear Response of Some Bearing Alloys
- Correlation of Microstructure and Giant Magnetoresistance in Electrodeposited Ni – Cu/Cu Multilayers
- Microstructure-related Modelling of the Deformation Behaviour of the Superalloy CoCr22Ni22W14
- An Assessment of the Si Mobility and the Application to Phase Transformations in Silicon Steels
- Simulated Weld HAZ of Vanadium Modified 2.25Cr-1Mo Steel
- The Metastable Miscibility Gap in the System Fe–Cu
- Precipitation in Iron Aluminides Containing Carbon and Titanium, Zirconium or Niobium
- Use of a Single Zirconia Electrolyte Cell to Measure Basicity in Binary and Ternary Carbonate Melts
- Adsorption Studies of Water on Copper, Nickel, and Iron: Assessment of the Polarization Model
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V
- Personen
- Terminkalender
Artikel in diesem Heft
- Frontmatter
- Aufsätze
- Automatic Determination of Dendritic Arm Spacing in Directionally Solidified Matters
- Microstructure and Mechanical Properties of Titanium Castings
- Microstructural Features Controlling the Dry Sliding Wear Response of Some Bearing Alloys
- Correlation of Microstructure and Giant Magnetoresistance in Electrodeposited Ni – Cu/Cu Multilayers
- Microstructure-related Modelling of the Deformation Behaviour of the Superalloy CoCr22Ni22W14
- An Assessment of the Si Mobility and the Application to Phase Transformations in Silicon Steels
- Simulated Weld HAZ of Vanadium Modified 2.25Cr-1Mo Steel
- The Metastable Miscibility Gap in the System Fe–Cu
- Precipitation in Iron Aluminides Containing Carbon and Titanium, Zirconium or Niobium
- Use of a Single Zirconia Electrolyte Cell to Measure Basicity in Binary and Ternary Carbonate Melts
- Adsorption Studies of Water on Copper, Nickel, and Iron: Assessment of the Polarization Model
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V
- Personen
- Terminkalender
