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Phase transitions in the ordered compound TiAl and in alloys having it as a base

Author
Zelenkov, I. A.
Published
May 1, 1980.
Physical Description
1 electronic document
Additional Creators
Martynchuk, E. N.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
The combined effect of alloying and heat treatment on the order-disorder transition in TiAl of stoichiometric composition was investigated. It is concluded from the data obtained that the TiAl 1 to TiAl 2 transition is a phase transition of the second kind. A phase transition was observed in TiAl of equiatomic composition in the 450-550 C temperature range. The introduction of niobium into the ordered compound TiAl of stoichiometric composition, instead of titanium or aluminum atoms, leads to partial softening. In this case, the effect of niobium atoms on softening of the alloys was greater when the niobium was introduced in place of aluminum atoms.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19800019997.
Accession ID: 80N28498.
NASA-TM-75827.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15721835