Microstructure modifications by tensile deformation in Ti-Ni-Fe alloy

Minoru Nishida, K. Tanaka, S. Ii, M. Kohshima, S. Miura, M. Asai

研究成果: ジャーナルへの寄稿Conference article

15 引用 (Scopus)

抄録

The origin of anomalous ductility in Ti-Ni alloy systems has been investigated by using Ti50Ni48Fe2 with tensile tests at wide temperature range about 200 to 800 K and TEM observations. The advantage of the alloy used is that there is no decomposition during tensile test at elevated temperature. Tensile stress-strain curve is divided into three types. Below 400 K tensile deformation behavior relates to stess and or strain induced martensitic transformation. Between 400 and 700 K serration is observed in stress-strain curve, which is derived from the formation of various deformation twins with rather large twinning shear. Anomalous ductility is attribute to the formation of these twins and increment of slip system. Above 700 K necking take place during tensile test and only dislocations are seen in the deformed specimen. However, type of burgers vector dose not change with deformation temperature throughout the present study.

元の言語英語
ページ(範囲)803-806
ページ数4
ジャーナルJournal De Physique. IV : JP
112 II
出版物ステータス出版済み - 10 1 2003
外部発表Yes
イベントInternational Conference on Martensitic Transformations - Espoo, フィンランド
継続期間: 6 10 20026 14 2002

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tensile deformation
tensile tests
Stress-strain curves
ductility
microstructure
Microstructure
Ductility
Burgers vector
Twinning
Martensitic transformations
martensitic transformation
curves
twinning
tensile stress
Tensile stress
Temperature
temperature
slip
shear
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Nishida, M., Tanaka, K., Ii, S., Kohshima, M., Miura, S., & Asai, M. (2003). Microstructure modifications by tensile deformation in Ti-Ni-Fe alloy. Journal De Physique. IV : JP, 112 II, 803-806.

Microstructure modifications by tensile deformation in Ti-Ni-Fe alloy. / Nishida, Minoru; Tanaka, K.; Ii, S.; Kohshima, M.; Miura, S.; Asai, M.

:: Journal De Physique. IV : JP, 巻 112 II, 01.10.2003, p. 803-806.

研究成果: ジャーナルへの寄稿Conference article

Nishida, M, Tanaka, K, Ii, S, Kohshima, M, Miura, S & Asai, M 2003, 'Microstructure modifications by tensile deformation in Ti-Ni-Fe alloy', Journal De Physique. IV : JP, 巻. 112 II, pp. 803-806.
Nishida M, Tanaka K, Ii S, Kohshima M, Miura S, Asai M. Microstructure modifications by tensile deformation in Ti-Ni-Fe alloy. Journal De Physique. IV : JP. 2003 10 1;112 II:803-806.
Nishida, Minoru ; Tanaka, K. ; Ii, S. ; Kohshima, M. ; Miura, S. ; Asai, M. / Microstructure modifications by tensile deformation in Ti-Ni-Fe alloy. :: Journal De Physique. IV : JP. 2003 ; 巻 112 II. pp. 803-806.
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AU - Asai, M.

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AB - The origin of anomalous ductility in Ti-Ni alloy systems has been investigated by using Ti50Ni48Fe2 with tensile tests at wide temperature range about 200 to 800 K and TEM observations. The advantage of the alloy used is that there is no decomposition during tensile test at elevated temperature. Tensile stress-strain curve is divided into three types. Below 400 K tensile deformation behavior relates to stess and or strain induced martensitic transformation. Between 400 and 700 K serration is observed in stress-strain curve, which is derived from the formation of various deformation twins with rather large twinning shear. Anomalous ductility is attribute to the formation of these twins and increment of slip system. Above 700 K necking take place during tensile test and only dislocations are seen in the deformed specimen. However, type of burgers vector dose not change with deformation temperature throughout the present study.

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