Stress corrosion cracking behavior of 310S in supercritical water with different oxygen concentrations
| Autor: | Jin-Hua Liu, Yuan Wang, Yong-Fu Zhao, Bin Gong, Shan-Xiu Cong, Er Jiang, Yue-Ming Tan, Jia-Zhen Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Materials science 020209 energy Oxide chemistry.chemical_element 02 engineering and technology Intergranular corrosion 021001 nanoscience & nanotechnology Oxygen Supercritical fluid chemistry.chemical_compound Cracking Nuclear Energy and Engineering chemistry Ultimate tensile strength 0202 electrical engineering electronic engineering information engineering Fracture (geology) Stress corrosion cracking Composite material 0210 nano-technology |
| Zdroj: | Nuclear Science and Techniques. 29 |
| ISSN: | 2210-3147 1001-8042 |
| Popis: | The effect of dissolved oxygen (DO) on the stress corrosion cracking (SCC) of 310S in supercritical water was investigated using slow-strain-rate tensile tests. The tensile properties, fracture morphology, and distribution of the chemical composition of the oxide were analyzed to evaluate the SCC susceptibility of 310S. The results showed that the rupture elongation decreased significantly as the degree of DO increased. A brittle fracture mode was observed on the fracture surface, and only intergranular cracking was observed on the surface of the gauge section, regardless of the DO. Cracks were widely distributed on the gauge surface near the fracture surface. Oxides were observed in the cracks with two-layered structures, i.e., a Cr-rich inner oxide layer and an Fe-rich outer oxide layer. |
| Databáze: | OpenAIRE |
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