Precipitation Processes in HR6W Alloy after Long-Term Ageing

Abstract:

Heat resistance and microstructure stability at elevated temperature in HR6W alloy is the result of strong appreciation of the solution by adding tungsten and strengthening precipitation. Structural studies were made after the annealing process at a temperature of 750°C. The heat treatment was carried out for up to 5000 hours. Microstructure stability of HR6W alloy was evaluated by the action of elevated temperature. Identification of precipitates produced using the method of selective electron diffraction (SAED) and chemical composition analysis using a transmission electron microscope by technique STEM.

• Periodical: Solid State Phenomena (Volume 246)
• Pages: 33-38
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.246.33
• Online since: February 2016
• Authors: Przemysław Jamrozik*, Maria Sozańska
• Keywords: HR6W Alloy, Long-Term Aging, Precipitation Processes

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