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- W830204623 abstract "The creep resistant ferritic steels have a microstructure with fine stable alloy carbides that impede the movement of the dislocations; however it is inevitable that during long periods of service or very critical conditions, microstructural changes that are responsible for the loss of material strength, occur. This type of steel is used for pressurized pipes, boiler tubes and heat exchangers at temperatures of up to 863 K. It exhibits good mechanical strength at high temperature due to the precipitation of carbides but for the low content of chromium present small corrosion resistance at temperatures around 823 K. The objective of this work is to study the creep behavior of 1Cr 0.5Mo steel and compare the resistance when -prior to service- it is subjected to different heat treatments that enhance its conditions of service. Tensile creep tests are performed at stresses between 131 and 205 MPa and temperatures between 843 and 923K. The microstructural change is analyzed in original material, after heat treatment and after test creep. Samples are characterized with light optical microscopy (LOM) and scanning electron microscopy (SEM). The micro hardness of the phases present in the different specimens is also measured." @default.
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- W830204623 date "2015-01-01" @default.
- W830204623 modified "2023-10-17" @default.
- W830204623 title "Creep Behavior of Ferritic Steels after Heat-treated" @default.
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- W830204623 doi "https://doi.org/10.1016/j.mspro.2015.04.163" @default.
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