Structure and Martensitic Transformation in Ti50Ni(50-X)NbX  (X=5; 10) Alloy Produced by Powder Metallurgy

Tomasz Goryczka; Kinga Piżuch; Michał Dworak

doi:10.4028/www.scientific.net/KEM.687.33

Paper Titles

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The Structure and Properties Formation of the NiTi Shape Memory Rods after Hot Rotary Forging
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The Structure and Shape Memory of the Hot Extruded NiTi Alloy
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Structure and Martensitic Transformation in Ti₅₀Ni_(50-X)Nb_X (X=5; 10) Alloy Produced by Powder Metallurgy
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Correlation of Tribological Properties of Titanium Alloys with their Microstructures
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Dynamic Recrystallization in Titanium Alloys
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Influence of the Supersaturating Temperature on the Microstructure and Hardness of Ti24Nb4Zr8Sn Alloy
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Investigation on Bioactivity of Zirconium-Calcium Coatings on Titanium Surface Obtained by Sol-Gel and Electrophoretic Deposition (EPD) Methods
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 687Structure and Martensitic Transformation in...

Structure and Martensitic Transformation in Ti₅₀Ni_(50-X)Nb_X (X=5; 10) Alloy Produced by Powder Metallurgy

Abstract:

The TiNiNb alloys with nominal composition containing 5at.% and 10at.% of niobium, substituted for nickel, were produced using a powder metallurgy. Alloys were produced from the initial powders of titanium, nickel and niobium with purity about 99.7%. Mixed powders were sintered at vacuum furnace at various sintering condition. Alloys showed the presence of the reversible martensitic transformation occurring between the B2 phase and the monoclinic martensite B19'. Apart from the presence of the transformable phases, also the non-transformable phase Ti₂Ni was identified. Moreover, in sintered alloy (shorter sintering time), some amount of the niobium was stated. Increase of the niobium content also increased characteristic temperatures of the martensitic transformation.

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Periodical:

Key Engineering Materials (Volume 687)

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33-40

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.687.33

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Online since:

April 2016

Authors:

Tomasz Goryczka*, Kinga Piżuch, Michał Dworak

Keywords:

Martensitic Transformation, Powder metallurgy, Shape Memory Alloy, TiNiNb

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