Paper Titles

Microstructural Control and DWTT Toughness in Thick-Walled Nb-Ti-V Microalloyed Linepipe Steels
p.303

Cr Influence on Steel Microstructure and Kinetics of Austenite Decomposition at Near-Bay Temperatures
p.311

Influence of Boron on Dynamic Recrystallization and Continuous Cooling Transformation of High Strength Interstitial Free Steels
p.321

Kinetics and Microstructural Aspects of the Coupling between Deformation at the Austenitic State and Ferrite Transformation in Carbon Steels
p.329

Contribution to the Understanding of Austenite Stability in a 12Cr-9Ni-4Mo Maraging Steel
p.339

Microstructure Evolution in Fine-Grained Microalloyed Steels
p.347

Factors Limiting the Achievable Ferrite Grain Refinement in Hot Worked Microalloyed Steels
p.355

Processing and Stability of Ultrafine Grained Structures in Some Microalloy Steels
p.363

Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
p.371

HomeMaterials Science ForumMaterials Science Forum Vols. 500-501Contribution to the Understanding of Austenite...

Contribution to the Understanding of Austenite Stability in a 12Cr-9Ni-4Mo Maraging Steel

Article Preview

Abstract:

Maraging steels show an excellent combination of high strength and ductility, which makes them very attractive in a large variety of potential applications. The present work is concerned with the main factors influencing the stability of metastable austenite in such a steel. At subzero temperatures a large variation in the isothermal transformation behaviour of austenite to martensite has been observed. Factors such as the austenite grain size and the interstitial content in solid solution are known to influence austenite stability and, therefore, the martensitic transformation. In this steel, the addition of titanium results in carbonitride precipitation. These precipitates play an indirect but important role in the stability of austenite by means of removing interstitials from the solid solution and by inhibiting an austenite grain growth. The combination of techniques such as X-ray diffraction, magnetisation measurements, three-dimensional neutron depolarisation, and internal friction measurements enables a complete characterisation of the transformation. A step towards understanding the factors responsible for the variation in the behaviour observed is the main contribution of this work.

You might also be interested in these eBooks

Microalloying for New Steel Processes and Applications

Info:

Periodical:

Materials Science Forum (Volumes 500-501)

Pages:

339-346

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.500-501.339

Citation:

Cite this paper

Online since:

November 2005

Authors:

David San Martín, Niels H. van Dijk, Yuriy Yagodzinskyy, Ekkes Brück, Sybrand van der Zwaag

Keywords:

Austenite, Internal Friction, Magnetic Measurement, Martensitic Transformation (MT), Neutron Depolarization

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] A. Borgenstam and H. Hillert: Acta Mater. Vol. 45 (1997) p.651.

[2] E. Nagy, V. Mertinger, F. Tranta and J. Solyom: Mater. Sci. Eng. A Vol. A378 (2004) p.308.

[3] K. Mumtaz, S. Takahashi, J. Echigoya, Y. Kamada, L.F. Zhang, H. Kikuchi, K. Ara, M. Sato: J. Mater. Sci. Vol. 39 ( 2004) p.85.

[4] R.W.K. Honeycombe and H.K.D.H. Bhadeshia: Steels, Microstructure and Properties (Edward Arnold, 2 nd Edition, Great Britain, 1995) p.83.

[5] S. Kajiwara: Acta Metall. Vol. 32 (1984) 407.

[6] C.L. Magee: The nucleation of martensite, Phase Transformations (ASM, 1970) p.115.

[7] G.B. Olson and M. Cohen: Metall. Trans. Vol. 6A (1975) p.791.

[8] A.K. De, D. C. Murdock, M.C. Mataya, J.G. Speer and D.K. Matlock: Scripta Mater. Vol. 50 (2004) p.1445.

[9] L. Zhao, N.H. van Dijk, E. Brück, J. Sietsma and S. van der Zwaag: Mater. Sci. Eng. A Vol. A313 (2001) p.145.

[10] S.G.E. Te Velthuis, N.H. van Dijk, M. TH. Rekveldt, J. Sietsma and S. van der Zwaag: Acta Mater. Vol. 48 (2000) p.1105.

DOI: 10.1016/s1359-6454(99)00414-0

[11] L.J.G.W. van Wilderen, S.E. Offerman, N.H. van Dijk, M. Th. Rekveldt, J. Sietsma, S. van der Zwaag: Appl. Phys. A Vol. 74 (2002) p. S1052.

DOI: 10.1007/s003390201676

[12] N.H. van Dijk, S.E. Offerman, J.C.P. Klaasse, J. Sietsma, S. van der Zwaag: J. Magn. And Mag. Mater., Vol. 268 (2004) p.40.

[13] N.H. van ijk, L. Zhao, M. Th. Rekveldt, H. Fredrikze, O. Tgus, E. Brück, J. Sietsma and S. van der Zwaag: Physica B Vol. 350 (2004) p. e463.

DOI: 10.1016/j.physb.2004.03.121

[14] M. Holmquist, J. -O Nilsson and A. Hultin Stigenberg: Scripta Metall. Mat. Vol. 33 (1995) 1367.

[15] J. Strid and K.E. Easterling: Acta Metall. Vol. 33 (1985) p. (2057).

[16] J. Snoek: Physica Vol. 6 (1939) p.591.

[17] A.S. Nowick, B.S. Berry: Anelastic Relaxation in Crystalline solids (Academic Press, 1972).

[18] R. Bagramov, D. Mari and W. Benoit: Phil. Mag. A Vol. 81 (2001) p.2797.

[19] I.S. Golovin, J. -O Nilsson, G.V. Serzhantova, S.A. Golovin: J. of Alloys and Compounds Vol. 310 (2000) p.411.

[20] J. Post, K. Datta and J. Huetink, AIP Conference proceedings Vol. 712 (2004) p.1670.

[21] B.D. Cullity, S.R. Stock: Elements of X-ray diffraction, (Prentice Hall, 3 rd ed, NY, 2001) p.351.

[22] Chester F. Jatczak: Retained Austenite and its measurement by X-ray diffraction (SAE Report SP-80/ 453/ S02. 50).

[23] R.S. Tebble and D.J. Craik: Magnetic Materials (Wiley-Interscience, 1969).

[24] S.G.E. Te Velthuis, N.H. van Dijk, M. Th. Rekveldt, J. Sietsma and S. van der Zwaag: Acta Mater. Vol. 48 (2000) p.1105.

DOI: 10.1016/s1359-6454(99)00414-0

[25] R. Rosman, M. Rekveldt: J. Magn. Magn. Mat. Vol. 95 (1991) p.319.

[26] C. Prioul: J. Phys., Vol. 46 (1985) p. C10.

[27] Y. Liu: Acta Metall. Mater. Vol. 41 (1994) p.3277.

[28] J. Post: PhD. Thesis (Technical University of Twente 2004).

[29] G.J. Klems, R.E. Miner, F.A. Hultgren and R. Gibala: Metall. Trans. A Vol. 7 (1976) p.839.