Activation energy of time-dependent martensite formation in steel

Matteo Villa; Marcel A. J. Somers

doi:10.1007/978-3-319-76968-4_2

Activation energy of time-dependent martensite formation in steel

Matteo Villa, Marcel A. J. Somers

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

The kinetics of {557}_γlath martensite formation in (wt%) 17Cr-7Ni-1Al-0.09C and 15Cr-7Ni-2Mo-1Al-0.08C steels was assessed with magnetometry at sub-zero Celsius temperatures. Samples were cooled to 77 K by immersion in boiling nitrogen to suppress martensite formation. Thereafter, thermally activated martensite formation was monitored during: (i) isochronal (re)heating at different heating rates; (ii) isothermal holding at temperatures between 120 and 310 K. The activation energy, EA, of thermally activated martensite formation was quantified from the results of both isochronal and isothermal tests by applying a Kissinger-like method. In addition, the isothermal data was interpreted applying the approach presented by Borgenstam and Hillert. The results of the independent quantification methods were consistent and indicated an EA in the range 9–13 kJ mol⁻¹. Thereafter, the two methods were applied to evaluate the data available in the literature. The overall analysis showed that EA varies in the range 2–27 kJ mol⁻¹ and increases logarithmically with the total fraction of interstitials in the steel.

Original language	English
Title of host publication	Proceedings of the International Conference on Martensitic Transformations: Chicago
Editors	Aaron Stebner, Greg Olson, Valery Levitas, Emmanuel De Moo, Othmane Benafan, Ibrahim Karaman, Mohsen Asle Zaeem, Peter Anderson, David Rowenhorst, Avadh Saxena, Reginald Hamilton, Alan Pelton, Peter Müllner, Michael Mills, Ricardo Komai
Publisher	Springer
Publication date	2018
Pages	13-19
ISBN (Print)	978-3-319-76967-7
ISBN (Electronic)	978-3-319-76968-4
DOIs	https://doi.org/10.1007/978-3-319-76968-4_2
Publication status	Published - 2018
Event	International Conference on Martensitic Transformations 2017 - Chicago, United States Duration: 9 Jul 2017 → 14 Jul 2017

Conference

Conference	International Conference on Martensitic Transformations 2017
Country/Territory	United States
City	Chicago
Period	09/07/2017 → 14/07/2017

Series	The Minerals, Metals & Materials Series
ISSN	2367-1181

Keywords

Isothermal martensite
Transformation kinetics
Martensitic steel

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10.1007/978-3-319-76968-4_2

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Villa, M., & Somers, M. A. J. (2018). Activation energy of time-dependent martensite formation in steel. In A. Stebner, G. Olson, V. Levitas, E. De Moo, O. Benafan, I. Karaman, M. Asle Zaeem, P. Anderson, D. Rowenhorst, A. Saxena, R. Hamilton, A. Pelton, P. Müllner, M. Mills, & R. Komai (Eds.), Proceedings of the International Conference on Martensitic Transformations: Chicago (pp. 13-19). Springer. https://doi.org/10.1007/978-3-319-76968-4_2

Villa, Matteo ; Somers, Marcel A. J. / Activation energy of time-dependent martensite formation in steel. Proceedings of the International Conference on Martensitic Transformations: Chicago. editor / Aaron Stebner ; Greg Olson ; Valery Levitas ; Emmanuel De Moo ; Othmane Benafan ; Ibrahim Karaman ; Mohsen Asle Zaeem ; Peter Anderson ; David Rowenhorst ; Avadh Saxena ; Reginald Hamilton ; Alan Pelton ; Peter Müllner ; Michael Mills ; Ricardo Komai. Springer, 2018. pp. 13-19 ( The Minerals, Metals & Materials Series).

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title = "Activation energy of time-dependent martensite formation in steel",

abstract = "The kinetics of {557}γ lath martensite formation in (wt%) 17Cr-7Ni-1Al-0.09C and 15Cr-7Ni-2Mo-1Al-0.08C steels was assessed with magnetometry at sub-zero Celsius temperatures. Samples were cooled to 77 K by immersion in boiling nitrogen to suppress martensite formation. Thereafter, thermally activated martensite formation was monitored during: (i) isochronal (re)heating at different heating rates; (ii) isothermal holding at temperatures between 120 and 310 K. The activation energy, EA, of thermally activated martensite formation was quantified from the results of both isochronal and isothermal tests by applying a Kissinger-like method. In addition, the isothermal data was interpreted applying the approach presented by Borgenstam and Hillert. The results of the independent quantification methods were consistent and indicated an EA in the range 9–13 kJ mol−1. Thereafter, the two methods were applied to evaluate the data available in the literature. The overall analysis showed that EA varies in the range 2–27 kJ mol−1 and increases logarithmically with the total fraction of interstitials in the steel.",

keywords = "Isothermal martensite, Transformation kinetics, Martensitic steel",

author = "Matteo Villa and Somers, {Marcel A. J.}",

year = "2018",

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publisher = "Springer",

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booktitle = "Proceedings of the International Conference on Martensitic Transformations: Chicago",

note = "International Conference on Martensitic Transformations 2017, ICOMAT 2017 ; Conference date: 09-07-2017 Through 14-07-2017",

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Villa, M & Somers, MAJ 2018, Activation energy of time-dependent martensite formation in steel. in A Stebner, G Olson, V Levitas, E De Moo, O Benafan, I Karaman, M Asle Zaeem, P Anderson, D Rowenhorst, A Saxena, R Hamilton, A Pelton, P Müllner, M Mills & R Komai (eds), Proceedings of the International Conference on Martensitic Transformations: Chicago. Springer, The Minerals, Metals & Materials Series, pp. 13-19, International Conference on Martensitic Transformations 2017, Chicago, Illinois, United States, 09/07/2017. https://doi.org/10.1007/978-3-319-76968-4_2

Activation energy of time-dependent martensite formation in steel. / Villa, Matteo ; Somers, Marcel A. J.
Proceedings of the International Conference on Martensitic Transformations: Chicago. ed. / Aaron Stebner; Greg Olson; Valery Levitas; Emmanuel De Moo; Othmane Benafan; Ibrahim Karaman; Mohsen Asle Zaeem; Peter Anderson; David Rowenhorst; Avadh Saxena; Reginald Hamilton; Alan Pelton; Peter Müllner; Michael Mills; Ricardo Komai. Springer, 2018. p. 13-19 ( The Minerals, Metals & Materials Series).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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AU - Villa, Matteo

AU - Somers, Marcel A. J.

PY - 2018

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N2 - The kinetics of {557}γ lath martensite formation in (wt%) 17Cr-7Ni-1Al-0.09C and 15Cr-7Ni-2Mo-1Al-0.08C steels was assessed with magnetometry at sub-zero Celsius temperatures. Samples were cooled to 77 K by immersion in boiling nitrogen to suppress martensite formation. Thereafter, thermally activated martensite formation was monitored during: (i) isochronal (re)heating at different heating rates; (ii) isothermal holding at temperatures between 120 and 310 K. The activation energy, EA, of thermally activated martensite formation was quantified from the results of both isochronal and isothermal tests by applying a Kissinger-like method. In addition, the isothermal data was interpreted applying the approach presented by Borgenstam and Hillert. The results of the independent quantification methods were consistent and indicated an EA in the range 9–13 kJ mol−1. Thereafter, the two methods were applied to evaluate the data available in the literature. The overall analysis showed that EA varies in the range 2–27 kJ mol−1 and increases logarithmically with the total fraction of interstitials in the steel.

AB - The kinetics of {557}γ lath martensite formation in (wt%) 17Cr-7Ni-1Al-0.09C and 15Cr-7Ni-2Mo-1Al-0.08C steels was assessed with magnetometry at sub-zero Celsius temperatures. Samples were cooled to 77 K by immersion in boiling nitrogen to suppress martensite formation. Thereafter, thermally activated martensite formation was monitored during: (i) isochronal (re)heating at different heating rates; (ii) isothermal holding at temperatures between 120 and 310 K. The activation energy, EA, of thermally activated martensite formation was quantified from the results of both isochronal and isothermal tests by applying a Kissinger-like method. In addition, the isothermal data was interpreted applying the approach presented by Borgenstam and Hillert. The results of the independent quantification methods were consistent and indicated an EA in the range 9–13 kJ mol−1. Thereafter, the two methods were applied to evaluate the data available in the literature. The overall analysis showed that EA varies in the range 2–27 kJ mol−1 and increases logarithmically with the total fraction of interstitials in the steel.

KW - Isothermal martensite

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KW - Martensitic steel

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T3 - The Minerals, Metals & Materials Series

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A2 - De Moo, Emmanuel

A2 - Benafan, Othmane

A2 - Karaman, Ibrahim

A2 - Asle Zaeem, Mohsen

A2 - Anderson, Peter

A2 - Rowenhorst, David

A2 - Saxena, Avadh

A2 - Hamilton, Reginald

A2 - Pelton, Alan

A2 - Müllner, Peter

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Villa M , Somers MAJ. Activation energy of time-dependent martensite formation in steel. In Stebner A, Olson G, Levitas V, De Moo E, Benafan O, Karaman I, Asle Zaeem M, Anderson P, Rowenhorst D, Saxena A, Hamilton R, Pelton A, Müllner P, Mills M, Komai R, editors, Proceedings of the International Conference on Martensitic Transformations: Chicago. Springer. 2018. p. 13-19. ( The Minerals, Metals & Materials Series). doi: 10.1007/978-3-319-76968-4_2

Activation energy of time-dependent martensite formation in steel

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