Abstract: The elastic-plastic fracture toughness (JIc ) response of precipitation strengthened Alloy A-286 has been evaluated by the multi-specimen R-curve technique at room temperature, 700 K (800°F) ...

Abstract: The effect of heat treatment on the JIC fracture toughness behavior of Alloy 718 was characterized at room temperature, 427°C and 538°C. Two different heat treatments were used: the ...

Abstract: The ductile fracture toughness behavior of FFTF primary piping and reactor vessel construction materials was characterized using the multiple-specimen J R -curve technique before and after 10,000-hr ...

Abstract: The elevated temperature fatigue-crack propagation response of Inconel 600 and Inconel 718 was characterized within a linear-elastic fracture mechanics framework in air and low-oxygen liquid sodium ...

Abstract: The microstructural features that influenced the fatigue-crack growth behavior of as-welded, conventional heat-treated, and modified heat-treated Alloy 718 GTA weldments were studied. Electron ...

Abstract: Heat-to-heat and product-form variations in the JIc fracture toughness of Alloy 718 were examined at 24°C, 427°C, and 538°C using the multiple-specimen JR -curve method. Five different ...

Abstract: Gas-tungsten-arc weldments in Alloy 718 were studied in fatigue-crack growth tests conducted at five temperatures over the range 24–649°C. In general, crack growth rates increased with ...

Abstract: Standard fatigue precracking of fracture toughness specimens taken from stainless steel welds with a double-V design was found to result in extremely uneven crack fronts. Material variability ...

Abstract: Heat-to-heat and product-form variations in the JIC fracture toughness for Alloy 718 were characterized at 24, 427, and 538°C using the multiple-specimen JR -curve method. Six different ...