Influence of plastic strain on mechanically induced martensitic transformations

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The effects of plastic strain on mechanically induced martensitic transformations are investigated. An austenitic metastable stainless steel is plastically deformed to varying amounts in a tensile tester at 120 C. This temperature is enough to suppress transformation during the deformation up to 20% of plastic strain. The resulting pre-strained material is then cooled to a lower temperature and the tensile test is continued while the martensite amount is measured via a magnetic sensor. Results show that for this alloy plastic strain does not promote the transformation. On the contrary, an increase in the critical stress at which transformation starts is observed with increasing pre-strain. Therefore, to model the transformation instead of the strain-induced transformation theory, a stress-driven approach is followed. Utilizing the Patel-Cohen and Wechsler-Lieberman-Read theories, a transformation criterion is established which is verified by Biaxial tests. For the evolution of martensite fraction, a meso-scale simulation is performed in which a homogeneous stress is applied to random crystal orientations and the favored crystals are allowed to transform. A good correspondence with the experiments is obtained.

Original languageEnglish
Title of host publicationInternational Conference on Martensitic Transformations (ICOMAT)
EditorsG.B. Olson, D.S. Lieberman, A. Saxena
PublisherWiley
Pages614-620
Number of pages7
ISBN (Electronic)9781118803592
ISBN (Print)9781118820438
DOIs
Publication statusPublished - 25 Jan 2010
Event12th International Conference on Martensitic Transformations, ICOMAT-08 - Santa Fe, United States
Duration: 29 Jun 20085 Jul 2008

Conference

Conference12th International Conference on Martensitic Transformations, ICOMAT-08
CountryUnited States
CitySanta Fe
Period29/06/085/07/08

Fingerprint

Martensitic transformations
Plastic deformation
Martensite
Magnetic sensors
Stainless Steel
Crystal orientation
Stainless steel
Temperature
Crystals
Experiments

Keywords

  • Plastic strain
  • Strain-induced
  • Stress-assisted
  • TRIP

Cite this

Perdahcioglu, E. S., Geijselaers, H. J. M., & Huétink, J. (2010). Influence of plastic strain on mechanically induced martensitic transformations. In G. B. Olson, D. S. Lieberman, & A. Saxena (Eds.), International Conference on Martensitic Transformations (ICOMAT) (pp. 614-620). Wiley. https://doi.org/10.1002/9781118803592.ch92
Perdahcioglu, E. S. ; Geijselaers, H. J.M. ; Huétink, J. / Influence of plastic strain on mechanically induced martensitic transformations. International Conference on Martensitic Transformations (ICOMAT). editor / G.B. Olson ; D.S. Lieberman ; A. Saxena. Wiley, 2010. pp. 614-620
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abstract = "The effects of plastic strain on mechanically induced martensitic transformations are investigated. An austenitic metastable stainless steel is plastically deformed to varying amounts in a tensile tester at 120 C. This temperature is enough to suppress transformation during the deformation up to 20{\%} of plastic strain. The resulting pre-strained material is then cooled to a lower temperature and the tensile test is continued while the martensite amount is measured via a magnetic sensor. Results show that for this alloy plastic strain does not promote the transformation. On the contrary, an increase in the critical stress at which transformation starts is observed with increasing pre-strain. Therefore, to model the transformation instead of the strain-induced transformation theory, a stress-driven approach is followed. Utilizing the Patel-Cohen and Wechsler-Lieberman-Read theories, a transformation criterion is established which is verified by Biaxial tests. For the evolution of martensite fraction, a meso-scale simulation is performed in which a homogeneous stress is applied to random crystal orientations and the favored crystals are allowed to transform. A good correspondence with the experiments is obtained.",
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Perdahcioglu, ES, Geijselaers, HJM & Huétink, J 2010, Influence of plastic strain on mechanically induced martensitic transformations. in GB Olson, DS Lieberman & A Saxena (eds), International Conference on Martensitic Transformations (ICOMAT). Wiley, pp. 614-620, 12th International Conference on Martensitic Transformations, ICOMAT-08, Santa Fe, United States, 29/06/08. https://doi.org/10.1002/9781118803592.ch92

Influence of plastic strain on mechanically induced martensitic transformations. / Perdahcioglu, E. S.; Geijselaers, H. J.M.; Huétink, J.

International Conference on Martensitic Transformations (ICOMAT). ed. / G.B. Olson; D.S. Lieberman; A. Saxena. Wiley, 2010. p. 614-620.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - The effects of plastic strain on mechanically induced martensitic transformations are investigated. An austenitic metastable stainless steel is plastically deformed to varying amounts in a tensile tester at 120 C. This temperature is enough to suppress transformation during the deformation up to 20% of plastic strain. The resulting pre-strained material is then cooled to a lower temperature and the tensile test is continued while the martensite amount is measured via a magnetic sensor. Results show that for this alloy plastic strain does not promote the transformation. On the contrary, an increase in the critical stress at which transformation starts is observed with increasing pre-strain. Therefore, to model the transformation instead of the strain-induced transformation theory, a stress-driven approach is followed. Utilizing the Patel-Cohen and Wechsler-Lieberman-Read theories, a transformation criterion is established which is verified by Biaxial tests. For the evolution of martensite fraction, a meso-scale simulation is performed in which a homogeneous stress is applied to random crystal orientations and the favored crystals are allowed to transform. A good correspondence with the experiments is obtained.

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Perdahcioglu ES, Geijselaers HJM, Huétink J. Influence of plastic strain on mechanically induced martensitic transformations. In Olson GB, Lieberman DS, Saxena A, editors, International Conference on Martensitic Transformations (ICOMAT). Wiley. 2010. p. 614-620 https://doi.org/10.1002/9781118803592.ch92