The effects of cold rolling orientation and water chemistry on stress corrosion cracking behavior of 316L stainless steel in simulated PWR water environments

Chen, Junjie J.; Lu, Zhanpeng; Xiao, Qian; Ru, Xiangkun; Han, Guangdong; Chen, Zhe; Zhou, Bangxin; Shoji, Tetsuo

doi:10.1016/j.jnucmat.2016.01.018

Cited by 41 publications

(9 citation statements)

References 16 publications

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“…Moreover, some studies have shown that grain refinement could have an important impact on the corrosion resistance of titanium and titanium matrix composites [52,53]; and that ultrafine particles of metallic materials could greatly decrease fluctuation of the passive film and strengthen its stability [54,55]. In this study, metallographic micrographs (Fig.…”

Section: Discussionmentioning

confidence: 73%

Corrosion Behaviour of Selective Laser Melted Ti-TiB Biocomposite in Simulated Body Fluid

Chen

Zhang

Dai

et al. 2017

Electrochimica Acta

178

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The corrosion behaviour of CP-Ti and Ti-TiB composite produced by selective laser melting (SLM) in the artificial simulated body fluid (Hank's solution) at body temperature, was investigated systematically by using electrochemical measurements (potentiodynamic polarisation curves and electrochemical impedance spectroscopy), together with some detailed structural characterisations. The results demonstrate that SLM-produced Ti-TiB composite samples possess better corrosion resistance than SLM-produced CP-Ti samples in Hank's solution. Due to these tiny TiB and TiB 2 particles acting as the micro-cathode uniformly distributing in titanium matrix, anodic dissolution of titanium matrix in the corrosion process is prominently facilitated in early stages, followed by rapid passivation on the surface. The corrosion mechanism of Ti-TiB composite samples has also been discussed in detail at the end of this paper.

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Section: Discussionmentioning

confidence: 73%

Corrosion Behaviour of Selective Laser Melted Ti-TiB Biocomposite in Simulated Body Fluid

Chen

Zhang

Dai

et al. 2017

Electrochimica Acta

178

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“…CGRs of the forged 316 stainless steel are ∼8.5 times and ∼2 times larger than those of the 20 and 30% cold‐worked 316 stainless steel in oxygenated water with 2000 and 100 ppb DO, respectively. However, when tested in deaerated high temperature water, the CGRs of the forged 316 stainless steel are similar to or even lower than those of cold‐worked 316L . Moreover, in hydrogenated high temperature water, the CGRs of the forged 316 stainless steel are lower than those of 15 and 20% cold‐worked 316L, and similar to those of 5 and 10% cold‐worked 316L .…”

Section: Resultsmentioning

confidence: 86%

Evaluation of stress corrosion cracking susceptibility of forged 316 stainless steel in simulated primary water

Zhu

Wang

Ming

et al. 2017

Materials & Corrosion

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The bolts for the reactor coolant pump are planned to be made of the forged 316 stainless steel. Prior to use, the stress corrosion cracking (SCC) resistance of the material requires investigation in simulated primary water at 320 °C. The crack growth rates (CGRs) of two duplicate compact tension (CT) specimens are measured using direct current potential drop method. The effects of stress intensity factor (K, changes from 21 to 41 MPa√m), dissolved oxygen (DO, changes from <10 to 2000 ppb) and dissolved hydrogen (DH, 2800 ppb) on CGRs are comprehensively examined. The results indicate that CGR increases with increasing K. The forged 316 stainless steel is sensitive to SCC in oxygenated water. Changing oxygenated water to hydrogenated water leads to more than one order of magnitude decreases of CGR. The fracture surface, crack path, and the influence of the crack branching on CGR are discussed.

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“…e material composition and organization of the weld area after welding are extremely complex. At the same time, in the process of welding cooling, due to rapid decrease in the temperature of the weld zone, which causes cold shrinkage, it will have a tensile effect on materials in the heat-affected area, and the materials in the heat-affected area will have plastic deformation in different levels under the tensile effect, leading to different levels of cold working in the heat-affected zone [1,2]. Changes of mechanical properties in the heat-affected zone will affect distribution of stress and strain fields at the crack tip in different areas of welded joints, which can affect the driving force of the crack growth and crack growth rate.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cold Working on the Driving Force of the Crack Growth and Crack Growth Rate of Welded Joints under One Overload

Yang

Xue

Yang

et al. 2020

Advances in Materials Science and Engineering

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To understand the effect of cold working of welding heat-affected zone on the driving force of the crack growth and crack growth rate of stress corrosion cracking (SCC) near the welding fusion line, the finite element simulation method was used to analyze the effect of cold working on the tensile stress of the crack tip at different locations near the fusion line. On this basis, the strain rate of the crack tip in the Ford-Andresen model is replaced by the creep rate of the crack tip, and the creep rate of the crack tip is used as driving force for the crack growth of SCC. The effect of the cold working level at the heat-affected zone on the driving force of the crack growth and crack growth rate of SCC are analyzed, and driving force of the crack growth and crack growth rate of SCC after one overload was compared.

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The effects of cold rolling orientation and water chemistry on stress corrosion cracking behavior of 316L stainless steel in simulated PWR water environments

Cited by 41 publications

References 16 publications

Corrosion Behaviour of Selective Laser Melted Ti-TiB Biocomposite in Simulated Body Fluid

Corrosion Behaviour of Selective Laser Melted Ti-TiB Biocomposite in Simulated Body Fluid

Evaluation of stress corrosion cracking susceptibility of forged 316 stainless steel in simulated primary water

Effect of Cold Working on the Driving Force of the Crack Growth and Crack Growth Rate of Welded Joints under One Overload

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