In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys

Yohei Soejima; Takayuki Miyoshi; Tomonari Inamura; Minoru Nishida

In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys

Yohei Soejima, Takayuki Miyoshi, Tomonari Inamura, Minoru Nishida

Materials Physics and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The nucleation, growth, forward and reverse transformation processes of thermoelastic martensite (TM) in shape memory alloys have been investigated by in-situ SEM cooling and heating observations. The homogeneous-like nucleation from the grain interior was observed in Ti-Ni, Ti-Nb-Al, Ti-Ni-Pd alloys. On the other hand, the heterogeneous nucleation from the grain boundary was observed in Ni-Mn-Ga, Cu-Al-Mn, Cu-Al-Ni alloys. In addition, the microstructure memory effect (MME) of the M phase only occurs during thermal cycles in the Ti-Nb-Al alloy. It is suggested that there is intimate relation between the nucleation site and the distribution of elastic stress field due to the anisotropy of thermal expansion coefficient. It is assumed that the change of internal stress field in the parent (P) phase during transformation cycles prevents MME.

Original language	English
Title of host publication	PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Editors	Long-Qing Chen, Matthias Militzer, Gianluigi Botton, James Howe, Chadwick Sinclair, Hatem Zurob
Publisher	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Pages	649-650
Number of pages	2
ISBN (Electronic)	9780692437360
Publication status	Published - 2015
Event	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada Duration: Jun 28 2015 → Jul 3 2015

Publication series

Name	PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

Other

Other	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
Country/Territory	Canada
City	Whistler
Period	6/28/15 → 7/3/15

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Inorganic Chemistry
Materials Chemistry
Metals and Alloys

Cite this

Soejima, Y., Miyoshi, T., Inamura, T., & Nishida, M. (2015). In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys. In L-Q. Chen, M. Militzer, G. Botton, J. Howe, C. Sinclair, & H. Zurob (Eds.), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 (pp. 649-650). (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015). International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015.

In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys. / Soejima, Yohei; Miyoshi, Takayuki; Inamura, Tomonari et al.
PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. ed. / Long-Qing Chen; Matthias Militzer; Gianluigi Botton; James Howe; Chadwick Sinclair; Hatem Zurob. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015. p. 649-650 (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Soejima, Y, Miyoshi, T, Inamura, T & Nishida, M 2015, In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys. in L-Q Chen, M Militzer, G Botton, J Howe, C Sinclair & H Zurob (eds), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, pp. 649-650, International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015, Whistler, Canada, 6/28/15.

Soejima Y, Miyoshi T, Inamura T, Nishida M. In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys. In Chen L-Q, Militzer M, Botton G, Howe J, Sinclair C, Zurob H, editors, PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. 2015. p. 649-650. (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

Soejima, Yohei ; Miyoshi, Takayuki ; Inamura, Tomonari et al. / In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys. PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. editor / Long-Qing Chen ; Matthias Militzer ; Gianluigi Botton ; James Howe ; Chadwick Sinclair ; Hatem Zurob. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015. pp. 649-650 (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

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title = "In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys",

abstract = "The nucleation, growth, forward and reverse transformation processes of thermoelastic martensite (TM) in shape memory alloys have been investigated by in-situ SEM cooling and heating observations. The homogeneous-like nucleation from the grain interior was observed in Ti-Ni, Ti-Nb-Al, Ti-Ni-Pd alloys. On the other hand, the heterogeneous nucleation from the grain boundary was observed in Ni-Mn-Ga, Cu-Al-Mn, Cu-Al-Ni alloys. In addition, the microstructure memory effect (MME) of the M phase only occurs during thermal cycles in the Ti-Nb-Al alloy. It is suggested that there is intimate relation between the nucleation site and the distribution of elastic stress field due to the anisotropy of thermal expansion coefficient. It is assumed that the change of internal stress field in the parent (P) phase during transformation cycles prevents MME.",

author = "Yohei Soejima and Takayuki Miyoshi and Tomonari Inamura and Minoru Nishida",

year = "2015",

language = "English",

series = "PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015",

publisher = "International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015",

pages = "649--650",

editor = "Long-Qing Chen and Matthias Militzer and Gianluigi Botton and James Howe and Chadwick Sinclair and Hatem Zurob",

booktitle = "PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015",

note = "International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 ; Conference date: 28-06-2015 Through 03-07-2015",

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T1 - In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys

AU - Soejima, Yohei

AU - Miyoshi, Takayuki

AU - Inamura, Tomonari

AU - Nishida, Minoru

PY - 2015

Y1 - 2015

N2 - The nucleation, growth, forward and reverse transformation processes of thermoelastic martensite (TM) in shape memory alloys have been investigated by in-situ SEM cooling and heating observations. The homogeneous-like nucleation from the grain interior was observed in Ti-Ni, Ti-Nb-Al, Ti-Ni-Pd alloys. On the other hand, the heterogeneous nucleation from the grain boundary was observed in Ni-Mn-Ga, Cu-Al-Mn, Cu-Al-Ni alloys. In addition, the microstructure memory effect (MME) of the M phase only occurs during thermal cycles in the Ti-Nb-Al alloy. It is suggested that there is intimate relation between the nucleation site and the distribution of elastic stress field due to the anisotropy of thermal expansion coefficient. It is assumed that the change of internal stress field in the parent (P) phase during transformation cycles prevents MME.

AB - The nucleation, growth, forward and reverse transformation processes of thermoelastic martensite (TM) in shape memory alloys have been investigated by in-situ SEM cooling and heating observations. The homogeneous-like nucleation from the grain interior was observed in Ti-Ni, Ti-Nb-Al, Ti-Ni-Pd alloys. On the other hand, the heterogeneous nucleation from the grain boundary was observed in Ni-Mn-Ga, Cu-Al-Mn, Cu-Al-Ni alloys. In addition, the microstructure memory effect (MME) of the M phase only occurs during thermal cycles in the Ti-Nb-Al alloy. It is suggested that there is intimate relation between the nucleation site and the distribution of elastic stress field due to the anisotropy of thermal expansion coefficient. It is assumed that the change of internal stress field in the parent (P) phase during transformation cycles prevents MME.

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T3 - PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

SP - 649

EP - 650

BT - PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

A2 - Chen, Long-Qing

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A2 - Howe, James

A2 - Sinclair, Chadwick

A2 - Zurob, Hatem

PB - International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

T2 - International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015

Y2 - 28 June 2015 through 3 July 2015

ER -

In-situ SEM observations of nucleation and growth of thermoelastic martensitic transformation in shape memory alloys

Abstract

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