Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Corrosion tester
Patent
1993-02-08
1994-03-08
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Corrosion tester
73 5301, 73104, 73785, 73799, 436 6, G01N 1700, G01N 1704
Patent
active
052924815
ABSTRACT:
A crack propagation test specimen has a base metal and a clad metal. The base metal has an upper surface and a bottom surface with a hole extending from the bottom surface toward the upper surface. The cladding metal is supported on the upper surface of the base metal and has a first slot cut therethrough which is in fluid flow communication with the hole in the base metal. A second slot is cut in the cladding metal adjacent to the first slot for receiving a wedge. The first slot and the second slot define a wall which closes over the first slot when a wedge is forced into the second slot to simulate a hairline crack. A mechanically deformed metal sample is disposed in the hole in the base metal to simulate a stressed base metal supporting a cladding metal subject to hairline cracking.
REFERENCES:
patent: 3116117 (1963-12-01), Marsh et al.
patent: 4267148 (1981-05-01), Dickson et al.
patent: 5147802 (1992-09-01), Aspden et al.
H. R. Copson et al. Corrosion 1960, 16, 123-129.
H. L. Craig et al. Ing "Handbook on Corrosion Testing and Evaluation".
W. H. Ailor, Ed., John Wiley and Sons, Inc., New York, 1971, 231-271.
"Corrosion Basics An Introduction Duction" National Association of Corrosion Engineers, Houston, Tex., 1984, 309-317.
Aspden Robert G.
Bengel Thomas G.
Housel James C.
Soderquist Arlen
Valentine J. C.
Westinghouse Electric Corp.
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