Materials corrosion and mitigation strategies for APT: End of year report, FY `96
- Los Alamos National Lab., NM (United States). Materials Corrosion and Environmental Effects Lab.
The authors major accomplishment in FY96 was the design and fabrication of the corrosion probes to be used ``In Beam`` during the FY97 irradiation period to begin on February 1, 1997. Never before have corrosion rate measurements been made on-line in such a high radiation environment. To measure corrosion rate as a function of beam time, it is necessary to electrical isolate the corrosion electrode to be examined form the plumbing system. Conventionally, this is accomplished with glass seals. Here irradiation of the glass may cause it to become conductive, rendering the seal useless. To overcome this problem, the corrosion probes to be used in-beam at the spallation neutron cooling water loop at the LANSCE A6 target station were fabricated with ceramic inserts which act as electrical feed-throughs. The corrosion sample is joined to the ceramic by means of a compression seal. The corrosion samples are closed end cylinders, 0.5 inches diameter x 6.25 inch length, that are constructed from Stainless Steel 304L, Stainless Steel 316L, Inconel 718, Tungsten, HT-9, and Tantalum. Because of their specialized nature, InTa Corporation, of Santa Clara, CA was contracted to manufacture these problems. As of November 1, 1996 delivery of these probes has begun and the authors anticipate having all of the probes in hand by Nov. 25.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 441765
- Report Number(s):
- LA-UR-97-116; ON: DE97003285; TRN: 97:005028
- Resource Relation:
- Other Information: PBD: 30 Oct 1996
- Country of Publication:
- United States
- Language:
- English
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