ERDL-NPFO--QUARTERLY PROGRESS REPORT NO. 9. FOR JULY THROUGH SEPTEMBER 1959

Technical Report · Thu Oct 01 04:00:00 EDT 1959

OSTI ID:4234878

Eicheldinger, C

Preliminary autoclave tests on Inconel were completed. Average corrosion rate was 0.35 mpy and the maximum corrosion rate on any single specimen was 0.90 mpy. The corrosion loop operated at 78% utilization during this quarter. Testing of MOD SG-5 and SH-5 (Croloy 16-1) vessels is continuing. At the end of this quarter, 2691 hours of testing had been accumulated. Testing of MOD SG-6 and SH-6 (Inconel) vessels is also continuing At the end of this quarter, 2008 hours of testing had been accumulated. MIN-4 (Croloy 16-1) was removed from the loop after 2578 hours of testing. Heavy corrosion-prcduct buildup on the tubes was noted at the vapor-liquid interface. MIN-5 (Croloy 16-1) was removed from the loop after 941 hours of testing. Corrosion-product buildup was considerably greater than that noted on MIN-4. MIN-9 (Inccnel) was removed from the loop after 2631 hours of testing. Examination revealed very little attack on tubes and tube sheet. MIN-6 (Croloy 16-1) and MIN-8 (Inconel) remain in the loop for further testing. The cosinecontoured heat transfer test section was reciived from the fabricator. The unit does not meet dimensional specifications. The aniform heat transfer test section was checked out in the loop and found to operate satisfactorily. One hundred kilowatts of electrical power was applied to the test section during checkout. A test program was initiated on the uniform test section. During this program, a short circuit developed between the channel and the backup plate. The test section failed due to meltdown of the channel wall. The damaged uniform test section is being rebuilt. The new technique for fabricating the test channel will be used. The heat transfer data reduction code has been written, assembled on the IBM-704, and partially checked out. The ccde is ready for reassembly on the IBM-709. (For preceding period see MND-E-2006.) (auth)

• Research Organization: Martin Co. Nuclear Div., Baltimore
• NSA Number: NSA-14-002666
• OSTI ID: 4234878
• Report Number(s): MND-E-2007
• Country of Publication: United States
• Language: English

Related Subjects

AUTOCLAVES
CORROSION
HEAT TRANSFER
LIQUIDS
MATERIALS TESTING
METALS, CERAMICS, AND MATERIALS
NICKEL ALLOYS
PIPES
PRESSURE VESSELS
VAPORS