| Abstract: | The results of x-ray structural studies of the effect of previous plastic deformation by rolling on the occurrence of phase
transitions in a TiNi(Fe) alloy are presented in the present work. The temperature dependences of the Bragg reflection intensities
and half-widths and the dependence of the rhombic angle in the R phase with various degrees of deformation were obtained.
Analysis of the results found gave the following rules. Plastic deformation substantially shifts the characteristic temperatures
of the martensitic transitions (MT) R-B19′ and B19′-B19″, increases the temperature range of the transformation and can result
in a “stepwise” transformation. It was observed that deformation weakly affects the temperature TR for the B2-R transformation.
Tomsk State Architecture and Construction Academy. V. D. Kuznetsov Siberian Physicotechical Institute at Tomsk University.
Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 11–20, July, 1996. |
