This article is cited in 2 papers

Photoacoustic microscopy of the effect of mechanical processing on the martensite structure of near-surface layers in Cu–Al–Ni alloy single crystals

A. L. Glazov, K. L. Muratikov, V. I. Nikolaev, S. A. Pul'nev

Ioffe Institute, St. Petersburg

Abstract: The near-surface layers in single crystals of copper-based alloys possessing shape memory and superelasticity have been studied using the photoacoustic microscopy (PAM) techniques. It is established that the PAM is advantageous to optical microscopy in studying the martensite structure, in particular, because this structure can be revealed without preliminary polishing of the sample surface. This circumstance allowed the effect of mechanical processing and related stresses on the twin structure in Cu–Al–Ni alloy single crystals to be studied. The sensitivity of PAM is sufficient to observe the structural transformations in samples at the early stages of martensite phase formation.

Received: 09.03.2010

 English version: Technical Physics Letters, 2010, 36:8, 699–702

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