Hot-dipped tin-zinc on U-0. 75 w/o Ti [electronic resource].

Published:: Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1979.
Physical Description:: Pages: 46 : digital, PDF file
Additional Creators:: United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Conventional Zn galvanizing of U-0.75 Ti results in nonuniform coatings and reduced elongation because of thermal aging of the surface of the U-Ti. A lower melting material which would give sacrificial galvanic protection to the U-Ti was found in the Sn-Zn alloy system. The present work describes: (1) the metallography of the Sn-Zn system, (2) the electrochemistry of the Sn-Zn system with respect to U-Ti, (3) the mechanics of applying a Sn-Zn coating to U-Ti, (4) salt spray corrosion test results of various Sn-Zn alloys applied to U-Ti coupons, and (5) mechanical property tests of coated U-Ti tensile bars. An 80 Sn-20 Zn alloy (MP-280/sup 0/C) was chosen for the galvanizing study because of its lower melting point. The results showed that all alloys of the Sn-Zn system galvanically protected the U-Ti in salt fog environments. The lack of a suitable low temperature flux prevented the operation of the Sn-Zn bath at its optimum temperature and low elongations were obtained with this coating system.

Report Numbers:

E 1.99:sand-79-0478
sand-79-0478

Subject(s):

Materials Science

Other Subject(s):

Note:

Published through SciTech Connect.
09/01/1979.
"sand-79-0478"
Weirick, L.J.
Sandia Labs., Albuquerque, NM (USA)

Funding Information:

EY-76-C-04-0789

View MARC record | catkey: 14461754