...Akihiro Mano; Yoshihito Yamaguchi; Jinya Katsuyama; Yinsheng Li In the past few decades, cracks because of stress corrosion cracking (SCC) have been detected in the dissimilar weld joints using nickel-based alloy in piping system of boiling water reactors (BWRs). Thus, the structural integrity...

...; final manuscript received July 4, 2016; published online September 27, 2016. Assoc. Editor: David L. Rudland. 07 01 2016 04 07 2016 stress intensity factor crack with large aspect ratio circumferential surface crack axial surface crack stress corrosion cracking Solutions...

...Tadafumi Hashimoto; Yusuke Osawa; Shinsuke Itoh; Masahito Mochizuki; Kazutoshi Nishimoto References [1] Nishikawa , S. , Horii , Y. , and Ikeuchi , K. , 2009 , “ Stress Corrosion Cracking Morphology of Shielded Metal Arc Weld Metals for Alloy 600 in High Temperature Pressurized...

... online March 18, 2013. Assoc. Editor: Xian-Kui Zhu. 04 07 2011 09 06 2012 The fundamental correlations such as crack growth rate (CGR) versus K for primary water stress corrosion cracking (PWSCC) of nickel-base alloys in simulated pressurized water reactor environments...

... crack-edge stress field analysis fatigue cracks finite element analysis pressure vessels shapes (structures) stress corrosion cracking structural engineering yield stress In a wide range of industries such as power, chemical, food preparation, nuclear, renewable energy, and armament...

...Jinya Katsuyama; Tohru Tobita; Hiroto Itoh; Kunio Onizawa Stress corrosion cracking (SCC) in Type 316 L low-carbon austenitic stainless steel recirculation pipes have been observed near butt-welding joints. These SCC in Type 316 L stainless steel grow near the welding zone mainly because...

...Tao Zhang; Frederick W. Brust; Gery Wilkowski; Do-Jun Shim; Jinsuo Nie; Charles H. Hofmayer; Syed A. Ali Nuclear power plant safety under seismic conditions is an important consideration. The piping systems may have some defects caused by fatigue, stress corrosion cracking, etc., in aged plants...

... and enhance small crack propagation and may cause stress corrosion cracking of the tube if it is exposed to a corrosive environment. In this paper, an axisymmetric finite element model has been used to evaluate the effect of large initial tube-tubesheet radial clearance and to evaluate the effects of grooves...

... the circumferential direction. Particularly, geometrical shapes of stress corrosion cracks are generally complex. The objective of this paper is to propose a method by formula for predicting the load-carrying capacity of pipes containing a circumferential surface flaw with any arbitrary shape. The failure bending...

...Jinya Katsuyama; Kunio Onizawa Welding residual stress is one of the most important factors of stress corrosion cracking (SCC) for austenitic stainless steels of the pressure boundary piping in nuclear power plants. For the assessment of the integrity of piping particularly for a long-term...

... induced cracking (HIC) and stress corrosion cracking (SCC). Based on the residual stress distribution character, a new connection structure between hydrogen nozzle and head is developed. A stressless flanging is proposed to insert into the nozzle to isolate the residual stresses, which can be useful...

...Katsumasa Miyazaki; Masahito Mochizuki The stress intensity factor estimated by the appropriate modeling of components is essential for the evaluation of crack growth behavior in stress corrosion cracking. For the appropriate modeling of a welded component with a crack, it is important...

... the integrity of the pipe. However, in the current editions of these codes, a limit load estimation method is only provided for pipes containing a single flaw. Independent multiple flaws, such as stress corrosion cracks, have actually been detected in the same plane of stainless steel piping systems...

... allowed the progression of a planar flaw subjected to typical stress corrosion cracking (SCC)-type growth laws by calculating stress intensity factors at every nodal point along the crack front, and incrementally advancing the crack front in a more natural manner. Typically, crack growth analyses...

...Xiang Ling; Gang Ma High tensile weld residual stress is an important factor contributing to stress corrosion cracking (SCC). Ultrasonic impact treatment (UIT) can produce compressive stresses on the surface of welded joints that negate the tensile stresses to enhance the SCC resistance of welded...

... 2009 pipes plasticity reliability stainless steel stress corrosion cracking Stainless steels are high toughness ductile materials and large diameter stainless steel pipes are used in power plants. The failure mode for stainless steels is expected to be fully plastic collapse. Plastic...

... generator tubes containing a defect has received increasing attention. Although several guidelines have been developed and used for assessing defect containing tubes, most of these guidelines are focused on stress corrosion cracking or wall-thinning phenomena. Because some of steam generator tubes fail due...

... for intergranular stress corrosion cracking. The nonsensitized grain boundaries, such as twin boundaries, have been observed to encourage the formation of crack bridging ligaments. Computational models of intergranular cracking have been developed to investigate the consequences of crack bridging, through its...

... agreement with the data by x-ray diffraction method, and the compressive stresses induced by LP are greater than the tensile residual stresses that result from the welding process. Peening, in general, is an effective method for protecting stainless steel weldments against stress corrosion crack (SCC...

...Masayuki Kamaya The interaction between multiple surface cracks is an important consideration in the cracking behavior due to thermal fatigue and stress corrosion cracking. However, it is difficult to evaluate the intensity of the interaction quantitatively because there are many factors...