X-ray Investigations of Shape Memory Alloys

The investigation aims to analyse the influence of different kinds of thermal treating on the structure of martensite. Maxima of the X-value are observed at 60–70 minutes for the sample aged at 200°C and 90 minutes for that aged at 375 °C and minima for Y after almost the same time. We consider that with these results the discussion on the processes occurring during short ageing times will be activated, because in the literature there is lack of such a results.