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- W1997066166 abstract "The effect of elevated service temperature on tensile properties, brittle fracture strength and on the Charpy V-notch transition curve of Cr-Mo-V and Cr-W-V cast steels is presented. A lowering of the yield stress and ultimate tensile stress (softening) was observed with both types of cast steels after long-term exposure at elevated temperatures. The brittle fracture strength of Cr-Mo-V steel established by testing both the smooth bars σBF and notch specimens σ∗BF at low temperatures was not influenced during exposure at elevated temperatures. The fracture appearance transition temperature (FATT) of this steel determined by impact Charpy test was also not affected by long-term exposure. Thus, it could be concluded that this type of cast steel was not embrittled during operation. On the contrary, a decrease in brittle fracture strength σ∗BF (250 MPa) and an increase in FATT (50°C) were observed in the Cr-W-V steel after 2 × 105h of service." @default.
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- W1997066166 date "1994-01-01" @default.
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- W1997066166 title "Degradation of mechanical properties of cast Cr-Mo-V and Cr-W-V steam turbine casings after long-term service at elevated temperatures. Part I: Tensile properties, brittle fracture strength and Charpy impact properties" @default.
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- W1997066166 doi "https://doi.org/10.1016/0308-0161(94)90048-5" @default.
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