The Influence of Heating/Cooling Rate on Transformation Temperatures of Co-Base Alloy

Abstract:

Thepaper deals with an experimental measurement of the transformation temperatures of Co-base alloy. Temperatures were determined by means of DTA-method during controlled heating and cooling. The samples in an as-received state were analysed at heating/cooling rates of 2, 5, 10 and 20 °C/min with the use of the equipment Setaram SETSYS 18TM (DTA-method). The samples after various heat treatments were analysed at heating/cooling rate of 5 °C/min by Setaram SETSYS 18TM (DTA-method). On the basis of evaluation of the results the influence of heating/cooling rate on shift of the transformation temperatures was determined. The influence of heat treatment on shift of the transformation temperatures was also studied. The samples in an as-received state and the samples after heat treatment were alsosubjected to the phase analysis by scanning electron microscopy using the microscope JEOL JSM-6490LV equipped with an energy dispersive analyser EDAX (EDS INCA x-act). The individual phases were identified by semi-quantitative X-ray microanalysis.

• Periodical: Materials Science Forum (Volume 782)
• Pages: 453-456
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.782.453
• Online since: April 2014
• Authors: Jana Dobrovská*, Bedřich Smetana, Hana Francová, Zdenĕk Jonšta
• Keywords: Co-Base Alloy, DTA-Method, Scanning Electron Microscope (SEM), Transformation Temperature

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