Issue |
J. Phys. IV France
Volume 112, October 2003
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Page(s) | 1051 - 1054 | |
DOI | https://doi.org/10.1051/jp4:20031062 |
J. Phys. IV France 112 (2003) 1051
DOI: 10.1051/jp4:20031062
Martensitic transformations, thermal expansion and mechanical properties of titanium-niobium alloys
L.P. Khromova1, N.B. Dyakonova2, Yu.L. Rodionov2, G.V. Yudin1 and I. Korms11 INOR, 2 Baumanskaya 9, 107005 Moscow, Russia
2 Central Research Institute of Ferrous Metallurgy, 2 Baumanskaya 9, 107005 Moscow, Russia
Abstract
Thermal expansion in quenched and cold rolled Ti-Nb alloys (30-50 w.% Nb) was studied and temperature ranges were determined,
in which anomalies associated with the sample expansion and compression occur. Phase transformations were studied by means
of X-ray diffraction in the temperature range
C. Cold rolling results in significant decrease of thermal expansion along the rolling direction. Thermal coefficient of linear
expansion varies with niobium content for deformed alloys assuming negative values for alloys with 34-38% Nb the minimum value
being
K
-1. Anomalies of TCLE are connected to temperature dependences of lattice constants of orthorhombic martensite, volume fractions
ofthe phases and texture of the alloys.
© EDP Sciences 2003