RESULTS OF STRESS CORROSION TESTS OF TYPE 347 STAINLESS STEEL IN 500 F pH 10-11 LITHIUM HYDROXIDE

Technical Report · Thu May 01 04:00:00 EDT 1958

OSTI ID:4335013

Galonian, G E

The results of stress-corrosion tests of T-347 stainless steel in 500 deg F pH 10-11 lithium hydroxide are described. Stressed-bolt specimens heated to 626, 665, and 694 deg F to produce boiling were exposed for four weeks to determine the extent of corrosion to be expected. Also, tests were made to evaluate corrosion under conditions of leakage to the atmosphere. In the boiling tests, corrosion seales thicker than expected were found, and metal penetration of about 0.001 in. occurred in some areas of the threads on the bolt specimens. No stress-corrosion cracking was found by microscopic or metallographic examination. No deposits ef lithium hydroxide were found. Deposits ef calcium carbonate were present. Tests to evaluate leakage to the atmosphere were made with a type 347 stainless steel bar stressed in a Schroeder embrittlement detector. A mixture ef calcium carbonate with some lithium compounds was found on the test surface after four weeks. No severe corrosion attack was observed. (auth)

• Research Organization: Knolls Atomic Power Lab., Schenectady, N.Y.
• DOE Contract Number: W-31-109-ENG-52
• NSA Number: NSA-12-010578
• OSTI ID: 4335013
• Report Number(s): KAPL-M-GEG-11
• Country of Publication: United States
• Language: English

Related Subjects

BOILING
BRITTLENESS
CALCIUM CARBONATES
CORROSION
DETECTION
FILMS
HEATING
LITHIUM COMPOUNDS
LITHIUM HYDROXIDES
MATERIALS TESTING
METALLOGRAPHY
MICROSCOPY
MINERALOGY, METALLURGY, AND CERAMICS
STAINLESS STEELS
STRESSES
SURFACES
TEMPERATURE