Abstract: The influence of test atmosphere on creep-rupture properties was determined for plain and notched bars of nickel, Nichrome V, Udimet 500, and Inconel X. The rupture life of nickel and of ...

Abstract: The inclusion of tensile hold periods during cyclic loading did not detrimentally affect rate of crack propagation in solution-annealed type 304 steel and 20 percent cold-worked type 316 steel ...

Abstract: Subcritical crack growth behavior in Alloy 718 was studied at 425°C under static, cyclic, and combined loads. The results are analyzed using linear elastic fracture mechanics. Crack growth ...

Abstract: Crack growth rate da/dN in Alloy 718 at 650°C, compared on the conventional ΔK basis, increased with increase in R (Kmin /Kmax ) and also generally with inclusion of hold time at Kmax ...

Abstract: Pre and postirradiation fatigue crack growth rates in A302-B, A533-B, and A543 steel plate and in two A543 welds (submerged arc and electroslag) were determined at 550 deg F (288 deg C) in ...

Abstract: The dependence of fatigue crack growth rates on range of stress intensity factor (ΔK) in Type 316 stainless steel was investigated over the temperature range of 75 to 1100 deg F. The data ...