Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K

Hideki Hosoda; Satoshi Tsutsumi; Masaki Tahara; Tomonari Inamura; Kenji Goto; Hiroyasu Kanetaka; Yoko Yamabe-Mitarai

doi:10.1557/opl.2015.59

Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K

Hideki Hosoda, Satoshi Tsutsumi, Masaki Tahara, Tomonari Inamura, Kenji Goto, Hiroyasu Kanetaka, Yoko Yamabe-Mitarai

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

Abstract

The reverse martensitic (austenite) transformation temperatures (A_s) were investigated using a diffusion couple of PtTi and CoTi with a continuous compositional gradient. It was found that PtTi and CoTi form a complete solid solution of (Pt, Co)Ti at 1373K. Surface relief was formed by heating due to the austenite transformation. Judging from the formation of the surface patterns and the corresponding chemical compositions, A_s monotonously decreases with increasing Co content at a rate of -70K/at%Co, and A_s is estimated to be close to room temperature (RT) when the Co concentration is 15at%Co. Besides, micro Vickers hardness values measured at RT are minimized around 15at%Co.

Original language	English
Title of host publication	Advanced Structural and Functional Intermetallic-Based Alloys
Editors	M. Heilmaier, I. Baker, K. Kishida, M. Mills, S. Miura
Publisher	Materials Research Society
Pages	163-168
Number of pages	6
ISBN (Electronic)	9781510806344
DOIs	https://doi.org/10.1557/opl.2015.59
Publication status	Published - 2015
Event	2014 MRS Fall Meeting - Boston, United States Duration: 2014 Nov 30 → 2014 Dec 5

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1760
ISSN (Print)	0272-9172

Other

Other	2014 MRS Fall Meeting
Country/Territory	United States
City	Boston
Period	14/11/30 → 14/12/5

ASJC Scopus subject areas

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

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10.1557/opl.2015.59

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Hosoda, H., Tsutsumi, S., Tahara, M., Inamura, T., Goto, K., Kanetaka, H., & Yamabe-Mitarai, Y. (2015). Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K. In M. Heilmaier, I. Baker, K. Kishida, M. Mills, & S. Miura (Eds.), Advanced Structural and Functional Intermetallic-Based Alloys (pp. 163-168). (Materials Research Society Symposium Proceedings; Vol. 1760). Materials Research Society. https://doi.org/10.1557/opl.2015.59

Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K. / Hosoda, Hideki; Tsutsumi, Satoshi; Tahara, Masaki et al.

Advanced Structural and Functional Intermetallic-Based Alloys. ed. / M. Heilmaier; I. Baker; K. Kishida; M. Mills; S. Miura. Materials Research Society, 2015. p. 163-168 (Materials Research Society Symposium Proceedings; Vol. 1760).

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

Hosoda, H, Tsutsumi, S, Tahara, M, Inamura, T, Goto, K, Kanetaka, H & Yamabe-Mitarai, Y 2015, Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K. in M Heilmaier, I Baker, K Kishida, M Mills & S Miura (eds), Advanced Structural and Functional Intermetallic-Based Alloys. Materials Research Society Symposium Proceedings, vol. 1760, Materials Research Society, pp. 163-168, 2014 MRS Fall Meeting, Boston, United States, 14/11/30. https://doi.org/10.1557/opl.2015.59

Hosoda H, Tsutsumi S, Tahara M, Inamura T, Goto K, Kanetaka H et al. Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K. In Heilmaier M, Baker I, Kishida K, Mills M, Miura S, editors, Advanced Structural and Functional Intermetallic-Based Alloys. Materials Research Society. 2015. p. 163-168. (Materials Research Society Symposium Proceedings). doi: 10.1557/opl.2015.59

Hosoda, Hideki ; Tsutsumi, Satoshi ; Tahara, Masaki et al. / Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K. Advanced Structural and Functional Intermetallic-Based Alloys. editor / M. Heilmaier ; I. Baker ; K. Kishida ; M. Mills ; S. Miura. Materials Research Society, 2015. pp. 163-168 (Materials Research Society Symposium Proceedings).

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abstract = "The reverse martensitic (austenite) transformation temperatures (As) were investigated using a diffusion couple of PtTi and CoTi with a continuous compositional gradient. It was found that PtTi and CoTi form a complete solid solution of (Pt, Co)Ti at 1373K. Surface relief was formed by heating due to the austenite transformation. Judging from the formation of the surface patterns and the corresponding chemical compositions, As monotonously decreases with increasing Co content at a rate of -70K/at%Co, and As is estimated to be close to room temperature (RT) when the Co concentration is 15at%Co. Besides, micro Vickers hardness values measured at RT are minimized around 15at%Co.",

author = "Hideki Hosoda and Satoshi Tsutsumi and Masaki Tahara and Tomonari Inamura and Kenji Goto and Hiroyasu Kanetaka and Yoko Yamabe-Mitarai",

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AU - Hosoda, Hideki

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AU - Goto, Kenji

AU - Kanetaka, Hiroyasu

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AB - The reverse martensitic (austenite) transformation temperatures (As) were investigated using a diffusion couple of PtTi and CoTi with a continuous compositional gradient. It was found that PtTi and CoTi form a complete solid solution of (Pt, Co)Ti at 1373K. Surface relief was formed by heating due to the austenite transformation. Judging from the formation of the surface patterns and the corresponding chemical compositions, As monotonously decreases with increasing Co content at a rate of -70K/at%Co, and As is estimated to be close to room temperature (RT) when the Co concentration is 15at%Co. Besides, micro Vickers hardness values measured at RT are minimized around 15at%Co.

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Phase constituent and reverse martensitic transformation temperature of PtTi-CoTi diffusion couple heat-treated at 1373K

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