Nondestructive evaluation on hydrogen effect of 316 L stainless steel
| Autor: | Kyonguk Jung, Jin-Kyung Lee, Dong-Su Bae, Seongguk Hwang, Sang-Pill Lee, Joon-Hyun Lee |
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| Rok vydání: | 2016 |
| Předmět: |
0209 industrial biotechnology
Materials science Hydrogen chemistry.chemical_element Fractography 02 engineering and technology Industrial and Manufacturing Engineering law.invention 020901 industrial engineering & automation Brittleness Optical microscope law Management of Technology and Innovation Nondestructive testing General Materials Science Liquid hydrogen Renewable Energy Sustainability and the Environment business.industry Mechanical Engineering Metallurgy 021001 nanoscience & nanotechnology Acoustic emission chemistry 0210 nano-technology business Hydrogen embrittlement |
| Zdroj: | International Journal of Precision Engineering and Manufacturing-Green Technology. 3:99-103 |
| ISSN: | 2198-0810 2288-6206 |
| DOI: | 10.1007/s40684-016-0013-7 |
| Popis: | A stainless steel material is used as components for storing hydrogen gas and liquid hydrogen, or for transportation raw material and oil in storage container. Brittle fracture associated with hydrogen is observed for stainless steel and these phenomena of hydrogen embrittlement were very important for wide-ranging application of stainless steel. Many researchers have studied the hydrogen embrittlement from the mechanical and metallographic point of views. The aim of this study is to identify the material degradation by hydrogen embrittlement for 316L stainless steel using nondestructive evaluation. That is, the relationship between the mechanical properties of 316L stainless steel by hydrogen charging and nondestructive technique of acoustic emission technique and an ultrasonic wave is to be clarified. The relationship between fractography and ultrasonic wave characteristics on hydrogen charged material for 0hr and 24hr was discussed. SEM and optical microscope were used to inspect the fracture surface of hydrogen charged material. The fracture surface of the charged specimen became brittle, especially on the surface nearby. AE parameters of event, count, energy, amplitude and frequency were analyzed according to the degree of the damage of hydrogen charged stainless steel. |
| Databáze: | OpenAIRE |
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