Effect of thermal charging of hydrogen on the microstructure of metastable austenitic stainless steel
- Effect of thermal charging of hydrogen on the microstructure of metastable austenitic stainless steel
- 서진유; 심재혁; 김동익; 이영수; 김한진; M.P. Phaniraj; 김주헌; 이준호; 박성준
- Issue Date
- STEEL RESEARCH INTERNATIONAL
- VOL 88, NO 2-1600063-9
- The tensile behavior of hydrogen-charged 304-type austenitic stainless steel, with and without prestrain, is investigated. The specimens are thermally charged with hydrogen in 15  MPa hydrogen gas at 300  °C for 72  h. Tensile behavior of the specimen is compared with the specimen aged in vacuum at 300  °C. The effect of the charging condition on the stability of microstructure is determined by characterizing prestrained specimens before and after charging. The hydrogen content in the specimens is determined using thermal desorption spectroscopy (TDS). Analysis of X-ray diffraction (XRD) data and electron backscattered diffraction (EBSD) shows that the fraction of martensite increases after charging in hydrogen by 5– 10%. The fracture surfaces of the uncharged and charged specimens are examined for characteristic features. Flow stress and ductility of the charged and prestrained and charged specimens are discussed in terms of the martensite fraction and hydrogen content.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.