Effect of heat treatment conditions on multistage martensitic transformation in aged Ni-rich Ti-Ni alloys

Minoru Nishida, Toru Hara, Yasuhiro Morizono, Mitsuhiro Matsuda, Kousuke Fujishima

研究成果: ジャーナルへの寄稿Conference article

抄録

It has been demonstrated with systematic experiments that the appearance and disappearance of multistage martensitic transformation (MMT) in aged Ni-rich Ti-Ni alloys depend on the heat treatment conditions. No multistage transformation occurs when the evaporation of Ti and Ni and/or the preferential oxidation of Ti in the specimen are prevented and the purification of heat treatment atmosphere in an evacuated quartz tube is achieved. The heterogeneity in precipitation morphology of the Ti3Ni4 phase, which is responsible for the multistage transformation can be suppressed with the regulation of heat treatment atmosphere as mentioned above. We have concluded that the multistage martensitic transformation in aged Ni-rich Ti-Ni alloys is extrinsic in nature, and is an artifact during the heat treatment.

元の言語英語
記事番号S5.1
ページ(範囲)365-370
ページ数6
ジャーナルMaterials Research Society Symposium Proceedings
842
出版物ステータス出版済み - 8 25 2005
イベント2004 MRS Fall Meeting - Boston, MA, 米国
継続期間: 11 29 200412 1 2004

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Martensitic transformations
martensitic transformation
heat treatment
Heat treatment
atmospheres
Quartz
purification
Purification
artifacts
Evaporation
quartz
evaporation
tubes
Oxidation
oxidation
titanium nickelide
Experiments

All Science Journal Classification (ASJC) codes

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

これを引用

Effect of heat treatment conditions on multistage martensitic transformation in aged Ni-rich Ti-Ni alloys. / Nishida, Minoru; Hara, Toru; Morizono, Yasuhiro; Matsuda, Mitsuhiro; Fujishima, Kousuke.

:: Materials Research Society Symposium Proceedings, 巻 842, S5.1, 25.08.2005, p. 365-370.

研究成果: ジャーナルへの寄稿Conference article

Nishida, Minoru ; Hara, Toru ; Morizono, Yasuhiro ; Matsuda, Mitsuhiro ; Fujishima, Kousuke. / Effect of heat treatment conditions on multistage martensitic transformation in aged Ni-rich Ti-Ni alloys. :: Materials Research Society Symposium Proceedings. 2005 ; 巻 842. pp. 365-370.
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AU - Fujishima, Kousuke

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