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Published in:
2018 | OriginalPaper | Chapter
Study of Decomposition of Martensite in FV535 Steel
Authors : L. Guerra-Fuentes, M. A. L. Hernandez-Rodriguez, P. Zambrano-Robledo, A. Salinas-Rodriguez, E. Garcia-Sanchez
Published in: Proceedings of the Symposium of Aeronautical and Aerospace Processes, Materials and Industrial Applications
Publisher: Springer International Publishing
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Abstract
The decomposition of martensite and precipitation presented during this process in the FV535 high-chromium martensitic steel and the effect on mechanical properties were studied. FV535 steel is used in petrochemical plants, gas turbine engineering, aircraft, and aerospace industries. The decomposition of martensite has been divided in six different stages, occurring at different temperature ranges, which can vary depending on the steel composition and microstructure; these stages were analyzed by DSC, and in order to analyze the change in mechanical properties, the FV535 steel was characterized by microhardness tests. The precipitation phenomena that occurred in this type of steel were analyzed by DSC and transmission electron microscopy and were correlated with the change in mechanical properties at high temperatures.