Pacific Northwest Laboratory quarterly report to ERDA Nuclear Research and Applications Division for April--June 1976. [WESF-produced /sup 90/SrF/sub 2/ and /sup 137/CsCl]

Technical Report · Thu Jul 01 04:00:00 EDT 1976

DOI:https://doi.org/10.2172/7350089· OSTI ID:7350089

Fullam, H T; Harmon, K M

The long-term compatibility tests are continuing as scheduled. The first set of test couples (1000-hr exposure) were removed from the furnaces and sectioned. Analysis of the test specimens is now underway. Metallographic examination of the nonradioactive specimens has been completed, and evaluation of the micrographs indicates that fluoride attack of the TZM, Haynes Alloy 25, and Hastelloy C-276 specimens is similar to that observed in the earlier short-term tests. Thermal aging of Hastelloy C-4 Charpy specimens is continuing. The 5000-hr tests have been completed and the impact strength of the aged specimens determined. The results show a decrease in impact strength of specimens aged at 600 and 800/sup 0/C, confirming the results of the 1000-hr tests. The dissolution behavior of WESF-produced /sup 90/SrF/sub 2/ in demineralized water and natural seawater was measured. The dissolution rate of the WESF /sup 90/SrF/sub 2/ in seawater was 300 +- 30 ..mu..g Sr/hr-g Sr present, while the dissolution rate in demineralized water was 440 ..mu..g Sr/hr-g Sr present. Work continued on the preparation of topical reports covering various phases of the program. A program was started to assist Sandia Laboratories in the evaluation of competing technologies for sewage treatment.

• Research Organization: Battelle Pacific Northwest Labs., Richland, Wash. (USA)
• DOE Contract Number: E(45-1)-1830
• OSTI ID: 7350089
• Report Number(s): BNWL-1845-25
• Country of Publication: United States
• Language: English

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