... is discussed. creep-fatigue interactions and mechanisms rapid solidification stress-controlled fatigue strain-controlled fatigue stress relaxation stress rupture cavitation precision density measurements grain boundary sliding Chih-Wei G. KUo, 1 Shankar M. L. Sastry, t and Kenneth L. Jerina 1...

... and creep rate. Microstructural evaluations were also conducted to help ascertain the mechanisms by which the improved properties were obtained. phosphorus boron austenitic stainless steel titanium stabilized stainless steel swelling creep stress rupture D9 D9I M. L. Hamilton, 1 G. D...

... prime stress rupture creep powder recrystallization (directional, secondary) thermomechanical processing tensile properties fatigue resistance corrosion resistance oxidation resistance grain growth annealing Alloy 51 Alloy 69 texture threshold stress formability Raymond C. Benn...

... than those of the thermal controls for a given temperature. neutron irradiation stainless steels 316 stainless steels D9 stainless steels inreactor creep creep rupture stress rupture Raymond J. Puigh^ and Margaret L. Hamilton^ In-Reactor Creep Rupture Behavior of the D19 and 316 Alloys...

... forgings for steam turbine application. A detailed evaluation of the tensile properties up to 565°C (1050°F), fracture toughness ( K Ic and J Ic ), high-cycle and low-cycle fatigue properties, and stress rupture (creep) properties were determined for the three forgings. Compared to conventionally...

... Stress rupture and crack velocity data must be used to predict the lifetime of structures. However, to use stress rupture data, the large amount of scatter characteristic of brittle materials must be treated, and to use crack velocity data the initial defect size must be known. Since the time...

... Static fatigue failure in ceramics is often assumed to be due to one mechanism: slow crack growth from preexisting flaws. Multiple mechanisms of failure may be operative, however. Stress rupture data for two materials, hot-pressed silicon nitride and sintered silicon carbide, will be presented...

... and last layers were peened for 0.5 min), and ( 2 ) postweld heat treated (PWHT) at 704°C (1300°F). Both all-welded and transverse weld properties are compared. The hardness, yield strength and tensile strength (at both room and elevated temperature), and stress rupture strength for the peened weldments...

... fluences in liquid metal fast breeder reactor cores. This report describes the test vehicles and the measurement techniques used to generate the data. creep measurement irradiation creep stress rupture laser metrology irradiation effects E. R. Gilbert^ andB. A. Chin^ Irradiated Materials...

... The paper presents a method of determining the proof pressure that can guarantee a design lifetime for Kevlar-49/epoxy pressure vessels. The method is based on the assumption that, when taken from the same population, a statically strong vessel is also strong in stress rupture. The lifetime data...

... tests. Thus even with this pessimistic approach there is no risk of a creep-rupture failure under design conditions. Zircaloy-2 stress rupture ductility low-deformation creep effects of irradiation B. Watkins' and D. S. Wood' The Significance of Irradiation-Induced Creep on Reactor...

... The tensile, fatigue, creep, and stress-rupture behavior of unidirectional, unidirectional off-axis, and cross-plied composites of 25 volume percent boron filaments in a matrix of 6061 aluminum has been investigated. The tensile investigation has shown the composites to be of reasonably high...

... techniques and extrusion. The composites were examined for microstructures and fiber length-to-diameter ratio and tested in tension at room temperature and 1100, 2200, 2500, 2750, and 3000 F. Stress-rupture tests were conducted on the composites at 2200 and 2500 F for times up to 1000 hr. It was found...

... An analysis of the creep deformation of fiber reinforced metallic composites was developed. Equations for predicting the creep rate and stress-rupture properties of fiber reinforced metallic composites were presented. Stress-rupture and creep tests were conducted at 1200 and 1500 F on tungsten...