ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Inconel 690 alloy is a Ni-Cr-Fe austenite solid solution alloy with a wide range ofapplications such as steam generator tubes in nuclear power plant due to its good mechanicalproperties and corrosion resistance. In this study, the effects of heat treatment on the microstructuralproperties of Inconel 690 alloy were investigated. Inconel 690 alloy was annealed at solid solutiontemperature of 1150°C for 20 min, and cooled down to 800°C with different cooling rates, and thenaged at 800°C for 100 min in vacuum, and then cooled down to room temperature by waterquenching. The optical microscopy, scanning electron microscopy, and transmission electronmicroscopy results indicated that in case of the cooling rate of 0.5°C/min, discontinuous carbidesalong the grain boundaries were formed and when the cooling rate was 10°C/min, continuouscarbides were formed. In both cases, many annealing twins were also formed. These results canhelp to improve the understanding of microstructural properties of Inconel 690 alloy
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.1609.pdf
Permalink