Original scientific paper

Acoustic emission during martensitic transformation in the β Cu-Zn alloy

El-Sa Yeo Esmail ; Dept. of Mech. Eng., 61000 Ljubljana, P. O. Box 394, Yugoslavia
Igor Grabec ; Dept. of Mech. Eng., 61000 Ljubljana, P. O. Box 394, Yugoslavia

Abstract

The double martensitic transformation in the p 1 Cu-Zn alloy was studied using dilatation measurement and acoustic emission (AE) analysis represented by root mean square (rms) voltage and ring-down counting. The slowly growing banded martensite is distinguished by dilatometric changes and very low amplitude, high repetition rate acoustic emission. The burst type martensite is completely self-accommodated, accompanied by high amplitude, low repetition rate emission bursts. The effect of thermal cycling on both the number of ring-down counts and the apparent martensitic start and end temperatures is discussed.

Keywords

Hrčak ID:

331140

URI

https://hrcak.srce.hr/331140

Publication date:

2.12.1986.

Article data in other languages: slovenian

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