Structure and Martensitic Transformation in Ti sub(50) Ni sub((50-X)) Nb sub(X)(X=5; 10) Alloy Produced by Powder Metallurgy

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...

Full description

Saved in:
Bibliographic Details
Published in:Key Engineering Materials 2016-04, Vol.687, p.33-40
Main Authors: Goryczka, Tomasz, Pizuch, Kinga, Dworak, Michal
Format: Article
Language:English
Subjects:
Alloy powders
Martensitic transformations
Nickel
Niobium
Phase transformations
Powder metallurgy
Sintering
Sintering (powder metallurgy)
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 Ti sub(2) Ni 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.
ISSN:1013-9826
1662-9795
DOI:10.4028/www.scientific.net/KEM.687.33