Title :
Characterization of Segregation and Precipitation at Grain Boundaries in Thermally Aged Pressure Vessel Steels
Author :
Sha, G. ; Hirosawa, S. ; Morley, A. ; Cerezo, A. ; Smith, G.D.W. ; Ellis, D. ; Williams, T.
Author_Institution :
Dept. of Mater., Oxford Univ.
Abstract :
In this paper, weld materials from two steels similar to SA553B type commercial steels have been analysed after long-term thermal ageing at 330degC and 365degC for 49800 hrs. Precipitation and segregation at grain boundaries have been characterized using field ion microscopy and 3-dimensional atom probe analysis
Keywords :
ageing; atom probe field ion microscopy; grain boundaries; grain boundary segregation; precipitation; pressure vessels; steel; welds; 3-dimensional atom probe analysis; 330 degC; 365 degC; 49800 hr; SA553B type commercial steels; field ion microscopy; grain boundaries; precipitation; pressure vessel steels; segregation; thermal ageing; weld materials; Aging; Building materials; Ceramics; Chromium; Copper; Grain boundaries; Materials science and technology; Nickel; Steel; Tin;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International
Conference_Location :
Guilin
Print_ISBN :
1-4244-0401-0
DOI :
10.1109/IVNC.2006.335326
