Isothermal Martensitic Transformations in an Aged Ni-Rich Ti-Ni Alloy Containing Coherent Ti3Ni4 Particles

Hiroshi Akamine; Yohei Soejima; Tadaaki Nakamura; Farjami Sahar; Takashi Fukuda; Tomoyuki Kakeshita; Minoru Nishida

doi:10.2320/matertrans.MT-MJ2019004

Isothermal Martensitic Transformations in an Aged Ni-Rich Ti-Ni Alloy Containing Coherent Ti₃Ni₄ Particles

Hiroshi Akamine, Yohei Soejima, Tadaaki Nakamura, Farjami Sahar, Takashi Fukuda, Tomoyuki Kakeshita, Minoru Nishida

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The time dependence nature of B2 (ordered cubic) to R (trigonal) and R to B19A (monoclinic) martensitic transformations in an aged Ni-rich Ti-Ni alloy was investigated by electrical resistivity measurements. Both B2 to R and R to B19A transformations exhibit time dependence nature in the aged alloy containing coherent lenticular Ti₃Ni₄ precipitates with an average diameter of about 110 nm. However, the successive B2-R-B19A isothermal transformation is not detected by electrical resistivity measurements. The isothermal R-B19A transformation is visualized by in situ scanning electron microscopy (SEM) observations.

Original language	English
Pages (from-to)	37-41
Number of pages	5
Journal	Materials Transactions
Volume	61
Issue number	1
DOIs	https://doi.org/10.2320/matertrans.MT-MJ2019004
Publication status	Published - 2020

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.2320/matertrans.MT-MJ2019004

Cite this

@article{218268c879794434afd646b78c949aa5,

title = "Isothermal Martensitic Transformations in an Aged Ni-Rich Ti-Ni Alloy Containing Coherent Ti3Ni4 Particles",

abstract = "The time dependence nature of B2 (ordered cubic) to R (trigonal) and R to B19A (monoclinic) martensitic transformations in an aged Ni-rich Ti-Ni alloy was investigated by electrical resistivity measurements. Both B2 to R and R to B19A transformations exhibit time dependence nature in the aged alloy containing coherent lenticular Ti3Ni4 precipitates with an average diameter of about 110 nm. However, the successive B2-R-B19A isothermal transformation is not detected by electrical resistivity measurements. The isothermal R-B19A transformation is visualized by in situ scanning electron microscopy (SEM) observations.",

author = "Hiroshi Akamine and Yohei Soejima and Tadaaki Nakamura and Farjami Sahar and Takashi Fukuda and Tomoyuki Kakeshita and Minoru Nishida",

note = "Funding Information: This work was partly supported by Grants-in-Aid for Scientific Research (A: No. 25249086 and No. 19H00829) from the Japan Society for the Promotion of Science and the Japan Science and Technology Agency (JST) (grant number: 20100113) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials”. Publisher Copyright: {\textcopyright} 2019 The Japan Institute of Metals and Materials.",

year = "2020",

doi = "10.2320/matertrans.MT-MJ2019004",

language = "English",

volume = "61",

pages = "37--41",

journal = "Materials Transactions",

issn = "0916-1821",

publisher = "The Japan Institute of Metals and Materials",

number = "1",

}

TY - JOUR

T1 - Isothermal Martensitic Transformations in an Aged Ni-Rich Ti-Ni Alloy Containing Coherent Ti3Ni4 Particles

AU - Akamine, Hiroshi

AU - Soejima, Yohei

AU - Nakamura, Tadaaki

AU - Sahar, Farjami

AU - Fukuda, Takashi

AU - Kakeshita, Tomoyuki

AU - Nishida, Minoru

N1 - Funding Information: This work was partly supported by Grants-in-Aid for Scientific Research (A: No. 25249086 and No. 19H00829) from the Japan Society for the Promotion of Science and the Japan Science and Technology Agency (JST) (grant number: 20100113) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials”. Publisher Copyright: © 2019 The Japan Institute of Metals and Materials.

PY - 2020

Y1 - 2020

N2 - The time dependence nature of B2 (ordered cubic) to R (trigonal) and R to B19A (monoclinic) martensitic transformations in an aged Ni-rich Ti-Ni alloy was investigated by electrical resistivity measurements. Both B2 to R and R to B19A transformations exhibit time dependence nature in the aged alloy containing coherent lenticular Ti3Ni4 precipitates with an average diameter of about 110 nm. However, the successive B2-R-B19A isothermal transformation is not detected by electrical resistivity measurements. The isothermal R-B19A transformation is visualized by in situ scanning electron microscopy (SEM) observations.

AB - The time dependence nature of B2 (ordered cubic) to R (trigonal) and R to B19A (monoclinic) martensitic transformations in an aged Ni-rich Ti-Ni alloy was investigated by electrical resistivity measurements. Both B2 to R and R to B19A transformations exhibit time dependence nature in the aged alloy containing coherent lenticular Ti3Ni4 precipitates with an average diameter of about 110 nm. However, the successive B2-R-B19A isothermal transformation is not detected by electrical resistivity measurements. The isothermal R-B19A transformation is visualized by in situ scanning electron microscopy (SEM) observations.

UR - http://www.scopus.com/inward/record.url?scp=85077365666&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85077365666&partnerID=8YFLogxK

U2 - 10.2320/matertrans.MT-MJ2019004

DO - 10.2320/matertrans.MT-MJ2019004

M3 - Article

AN - SCOPUS:85077365666

VL - 61

SP - 37

EP - 41

JO - Materials Transactions

JF - Materials Transactions

SN - 0916-1821

IS - 1

ER -

Isothermal Martensitic Transformations in an Aged Ni-Rich Ti-Ni Alloy Containing Coherent Ti₃Ni₄ Particles

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this