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(PDF) Environmental Fatigue Behaviors of SA508 Gr.1a Low

The low cycle fatigue tests of SA508 Gr.1a low alloy steel were carried out to investigate the fatigue crack growth mechanisms in high temperature water. The fatigue life in 310 o C deoxygenated Environmental Fatigue Behaviors of SA508 Gr.1a Low Alloy The low cycle fatigue tests of SA508 Gr.1a low alloy steel were carried out to investigate the fatigue crack growth mechanisms in high temperature water. The fatigue life in 310oC deoxygenated water was shorter than that in air. Furthermore, the reduction in the fatigue life in 310oC deoxygenated water was enhanced with a decreasing strain rate, from 0.4 to 0.008 %/s.

Fatigue Crack Growth Characteristics of the Pressure

Fatigue tests in air and in room temperature water were performed to obtain comparable data and stable crack measuring conditions. In air environment, fatigue crack growth rate was increased with Fatigue crack growth behavior of pressure vessel steels The fatigue crack growth rate (FCGR) properties of SA508 Cl 2a and SA533 Gr A Cl 2 pressure vessel steels and the corresponding automatic submerged arc weldments were developed in a high-temperature pressurized water (HPW) environment at 288{degrees} C (550{degrees} F) and 7.2 MPa (1044 psi) at load ratios of 0.20 and 0.50. Fatigue crack growth of C1.3 pressure vessel steel in high In argon and air environment, the fatigue crack growth rate of SA508 alloy follows Paris' law as shown in Figure 2. In the applied load range, the crack growth rate increased by two or three times at 288 than that at room temperature in air environment, while crack growth rate at 288 OC in argon

Fatigue crack growth rates in a pressure vessel steel

Abstract. Corrosion fatigue (CF) tests have been carried out on SA508 Cl 3 pressure vessel steel, in simulated P.W.R. environments. The test variables investigated included air and P.W.R. water environments, frequency variation over the range 1 Hz to 10 Hz, transverse and longitudinal crack growth directions, temperatures of 20 °C and 50 °C, and R -ratios of 0.2 and 0.7. Study on underclad cracking in nuclear reactor vessel The fatigue crack growth rate (FCGR) properties of SA508 Cl 2a and SA533 Gr A Cl 2 pressure vessel steels and the corresponding automatic submerged arc weldments were developed in a high-temperature pressurized water (HPW) environment at 288{degrees} C (550{degrees} F) and 7.2 MPa (1044 psi) at load ratios of 0.20 and 0.50.Fracture toughness and fracture behavior of SA508-III Dec 07, 2014 · W.A. Logsdon and P.K. Liaw, Fatigue crack growth rate properties of SA508 and SA533 pressure vessel steels and submerged arc weldments in room and elevated temperature air environments, Eng. Fract. Mech., 22(1985), No. 3, p. 509. Article Google Scholar [5]