Enhancement of ductility in B2-type Zr-Co-Pd alloys with martensitic transformation

M. Matsuda, T. Nishimoto, Y. Morizono, S. Tsurekawa, Minoru Nishida

研究成果: ジャーナルへの寄稿記事

19 引用 (Scopus)

抄録

The relationship between the microstructures and the mechanical properties in the ternary Zr-Co-Pd alloys has been investigated. X-ray diffraction measurements at room temperature indicated that Zr50Co 50-xPdx alloys underwent martensitic transformation from B2 to B33 structures as a result of substituting Pd for Co at amounts greater than 12 at%. The yield and tensile strength increased at a substitution amount of 6 at%. The total elongation remarkably increased as a result of substituting Pd for Co at amounts up to 10 at%; in particular, the Zr50Co 40Pd10 alloy exhibited a considerably high total elongation of 22%. Deformation-induced martensite with a lenticular morphology was observed in the B2 parent phase near the fractured edge, in addition to dislocation with the <100>B2-type Burgers vector. Consequently, we conclude that the remarkable enhancement of the ductility is due to the transformation-induced plasticity associated with the deformation-induced martensite.

元の言語英語
ページ(範囲)894-899
ページ数6
ジャーナルIntermetallics
19
発行部数7
DOI
出版物ステータス出版済み - 7 1 2011

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Martensitic transformations
Ductility
Martensite
Elongation
Burgers vector
Dislocations (crystals)
Plasticity
Yield stress
Substitution reactions
Tensile strength
X ray diffraction
Mechanical properties
Microstructure
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Enhancement of ductility in B2-type Zr-Co-Pd alloys with martensitic transformation. / Matsuda, M.; Nishimoto, T.; Morizono, Y.; Tsurekawa, S.; Nishida, Minoru.

:: Intermetallics, 巻 19, 番号 7, 01.07.2011, p. 894-899.

研究成果: ジャーナルへの寄稿記事

Matsuda, M. ; Nishimoto, T. ; Morizono, Y. ; Tsurekawa, S. ; Nishida, Minoru. / Enhancement of ductility in B2-type Zr-Co-Pd alloys with martensitic transformation. :: Intermetallics. 2011 ; 巻 19, 番号 7. pp. 894-899.
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abstract = "The relationship between the microstructures and the mechanical properties in the ternary Zr-Co-Pd alloys has been investigated. X-ray diffraction measurements at room temperature indicated that Zr50Co 50-xPdx alloys underwent martensitic transformation from B2 to B33 structures as a result of substituting Pd for Co at amounts greater than 12 at{\%}. The yield and tensile strength increased at a substitution amount of 6 at{\%}. The total elongation remarkably increased as a result of substituting Pd for Co at amounts up to 10 at{\%}; in particular, the Zr50Co 40Pd10 alloy exhibited a considerably high total elongation of 22{\%}. Deformation-induced martensite with a lenticular morphology was observed in the B2 parent phase near the fractured edge, in addition to dislocation with the <100>B2-type Burgers vector. Consequently, we conclude that the remarkable enhancement of the ductility is due to the transformation-induced plasticity associated with the deformation-induced martensite.",
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N2 - The relationship between the microstructures and the mechanical properties in the ternary Zr-Co-Pd alloys has been investigated. X-ray diffraction measurements at room temperature indicated that Zr50Co 50-xPdx alloys underwent martensitic transformation from B2 to B33 structures as a result of substituting Pd for Co at amounts greater than 12 at%. The yield and tensile strength increased at a substitution amount of 6 at%. The total elongation remarkably increased as a result of substituting Pd for Co at amounts up to 10 at%; in particular, the Zr50Co 40Pd10 alloy exhibited a considerably high total elongation of 22%. Deformation-induced martensite with a lenticular morphology was observed in the B2 parent phase near the fractured edge, in addition to dislocation with the <100>B2-type Burgers vector. Consequently, we conclude that the remarkable enhancement of the ductility is due to the transformation-induced plasticity associated with the deformation-induced martensite.

AB - The relationship between the microstructures and the mechanical properties in the ternary Zr-Co-Pd alloys has been investigated. X-ray diffraction measurements at room temperature indicated that Zr50Co 50-xPdx alloys underwent martensitic transformation from B2 to B33 structures as a result of substituting Pd for Co at amounts greater than 12 at%. The yield and tensile strength increased at a substitution amount of 6 at%. The total elongation remarkably increased as a result of substituting Pd for Co at amounts up to 10 at%; in particular, the Zr50Co 40Pd10 alloy exhibited a considerably high total elongation of 22%. Deformation-induced martensite with a lenticular morphology was observed in the B2 parent phase near the fractured edge, in addition to dislocation with the <100>B2-type Burgers vector. Consequently, we conclude that the remarkable enhancement of the ductility is due to the transformation-induced plasticity associated with the deformation-induced martensite.

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