Development of oxide dispersion strengthened ferritic steels for fusion
- Vista Metals, Inc., McKeesport, PA (United States)
- Univ. of Idaho, ID (United States)
- Pacific Northwest National Lab., Richland, WA (United States)
An oxide dispersion strengthened (ODS) ferritic steel with high temperature strength has been developed in line with low activation criteria for application in fusion power systems. The composition Fe-13.5Cr-2W-0.5Ti-0.25Y{sub 2}O{sup 3} was chosen to provide a minimum chromium content to insure fully delta-ferrite stability. High temperature strength has been demonstrated by measuring creep response of the ODS alloy in uniaxial tension at 650 and 900 C in an inert atmosphere chamber. Results of tests at 900 C demonstrate that this alloy has creep properties similar to other alloys of similar design and can be considered for use in high temperature fusion power system designs. The alloy selection process, materials production, microstructural evaluation and creep testing are described.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 335389
- Report Number(s):
- DOE/ER-0313/23; ON: DE98004697; TRN: 99:005179
- Resource Relation:
- Other Information: PBD: Mar 1998; Related Information: Is Part Of Fusion materials semiannual progress report for the period ending December 31, 1997; Burn, G. [ed.] [comp.]; PB: 390 p.
- Country of Publication:
- United States
- Language:
- English
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Development oxide dispersion strengthened ferritic steels for fusion
Development of oxide dispersion strengthened ferritic steels for fusion