1. Influence of nominal composition variation on phase evolution and creep life of Type 316H austenitic stainless steel components
- Author
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Ana I. Martinez-Ubeda, M. S. A. Karunaratne, Thomas Bligh Scott, C.M. Younes, Peter E J Flewitt, and Ian Griffiths
- Subjects
010302 applied physics ,Materials science ,phase transformation ,Metallurgy ,02 engineering and technology ,engineering.material ,021001 nanoscience & nanotechnology ,01 natural sciences ,Phase evolution ,Carbide ,Creep ,Ferrite (iron) ,0103 physical sciences ,engineering ,creep cavitation ,Austenitic stainless steel ,0210 nano-technology ,Chemical composition ,316H austentic stainless steel ,Earth-Surface Processes ,Electron backscatter diffraction ,creep deformation - Abstract
The present work aims to understand the influence of variation in chemical composition in the long term evolution of secondary phases. Three samples with nominal composition of Type 316H but different specific composition have been exposed to 505 ° C during 150, 145 and 300 kh. The percentage of ferrite and M 23 C 6 carbide have been measured using EBSD and compared with Thermo-Calc predictions. In addition, thin foils were prepared and characterized to identify secondary phases in the samples. The discussion is focused on the influence of the secondary phases on creep deformation and failure.
- Published
- 2016
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