The Experts below are selected from a list of 396 Experts worldwide ranked by ideXlab platform
J T Lee - One of the best experts on this subject based on the ideXlab platform.
-
the stress corrosion crack growth rate in sensitized alloy 600 in thiosulfate solution
Corrosion Science, 1996Co-Authors: W T Tsai, M J Sheu, J T LeeAbstract:Abstract A constant deflection technique incorporating Precracked Specimen was employed to determine the stress corrosion crack (SCC) growth rate in sensitized Alloy 600 in thiosulfate solution under applied potential conditions. At passive potentials, the intergranular stress corrosion crack (IGSCC) growth rate increased, while the critical stress intensity factor for SCC ( K ISCC ) decreased with increasing potential. At + 500 mV(SCE), in the transpassive potential region, crack growth rate retardation was observed.
W T Tsai - One of the best experts on this subject based on the ideXlab platform.
-
the stress corrosion crack growth rate in sensitized alloy 600 in thiosulfate solution
Corrosion Science, 1996Co-Authors: W T Tsai, M J Sheu, J T LeeAbstract:Abstract A constant deflection technique incorporating Precracked Specimen was employed to determine the stress corrosion crack (SCC) growth rate in sensitized Alloy 600 in thiosulfate solution under applied potential conditions. At passive potentials, the intergranular stress corrosion crack (IGSCC) growth rate increased, while the critical stress intensity factor for SCC ( K ISCC ) decreased with increasing potential. At + 500 mV(SCE), in the transpassive potential region, crack growth rate retardation was observed.
M J Sheu - One of the best experts on this subject based on the ideXlab platform.
-
the stress corrosion crack growth rate in sensitized alloy 600 in thiosulfate solution
Corrosion Science, 1996Co-Authors: W T Tsai, M J Sheu, J T LeeAbstract:Abstract A constant deflection technique incorporating Precracked Specimen was employed to determine the stress corrosion crack (SCC) growth rate in sensitized Alloy 600 in thiosulfate solution under applied potential conditions. At passive potentials, the intergranular stress corrosion crack (IGSCC) growth rate increased, while the critical stress intensity factor for SCC ( K ISCC ) decreased with increasing potential. At + 500 mV(SCE), in the transpassive potential region, crack growth rate retardation was observed.
Tatsuki Ohji - One of the best experts on this subject based on the ideXlab platform.
-
evaluation of fracture toughness of ceramic thin plates through modified single edge Precracked plate method
Scripta Materialia, 2015Co-Authors: Hiroyuki Miyazaki, Kiyoshi Hirao, Yuichi Yoshizawa, Tatsuki OhjiAbstract:In order to evaluate fracture toughness of thin plates of aluminum nitrides and silicon nitrides, a small, thin single edge notched plate with the thickness of 0.32 or 0.64 mm was glued on one side of a brass beam and the assembly was deformed in three-point bending to introduce the precrack. The flexural strength of the Precracked Specimen was measured using a special 3pt-bending fixture. The resultant fracture toughness was almost identical to those obtained for the standard-sized Specimens.
Fazhi Yan - One of the best experts on this subject based on the ideXlab platform.
-
influence of coupled effect among flaw parameters on strength characteristic of Precracked Specimen application of response surface methodology and fractal method
Journal of Natural Gas Science and Engineering, 2015Co-Authors: Ting Liu, Baiquan Lin, Chunshan Zheng, Quanle Zou, Chuanjie Zhu, Fazhi YanAbstract:Hydraulic slotting is an effective method for enhanced coalbed methane (ECBM) recovery, and it has been widely employed in China. Although there have been many studies of this technique, the influence of slot parameters on the strength characteristic of the coal, which is an important factor that affects the permeability enhancement effect, has rarely been studied. Thus, only limited information is available regarding the pressure relief and permeability enhancement mechanisms of this technique. In the current study, the influence of flaw parameters on the compressive strength of a Precracked sample under biaxial compression is discussed. The results indicate that an increase in the flaw length and width has a negative effect on the compressive strength, whereas an increase in the flaw inclination angle has a positive effect on the compressive strength. The results of the response surface methodology (RSM) indicate that the interactions among the flaw parameters have a significant influence on the compressive strength. The propagation patterns of cracks are quantified by the fractal dimension, which is used to explore the mechanism of compressive strength variation with changes in the flaw parameters. The study results indicate that the variation in the flaw parameters changes the propagation pattern of cracks, resulting in different compressive strengths. In addition, an opposite variation trend of the compressive strength and fractal dimension with flaw parameters is also observed. The research results are expected to guide the field application of hydraulic slotting.