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Theory of Pre-Martensitic Effects in Alloys with ω- Transformation

Published online by Cambridge University Press:  25 February 2011

David A. Vul
David A. Vul*
Affiliation:
University of California, Berkeley, Dept. of Materials Science & Mineral Engineering, Berkeley, CA 94720
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Abstract

It is shown that the phonon dip in the longitudinal phonon branch L[111] in the metals Zr, Hf, Ti, Nb results in an oscillating component in static displacement field around a point defect. The oscillations have the wave vector 2/3(111) and occur in four rod-like shape regions along <111> directions. The value of the oscillations is much smaller then whole atomic displacements. Anomalies of the elastic diffuse scattering intensity from β-phase alloys based on the metals are explained as caused by the scattering on these distorted regions around solutes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 246: Symposium M – Shape-Memory Materials and Phenomena--Fundamental Aspects and Applications , 1991 , 235
Copyright
Copyright © Materials Research Society 1992

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