DIFFERENTIAL THERMAL-EXPANSION EFFECTS ON BRAZED JOINTS

Technical Report · Tue Sep 01 04:00:00 EDT 1953

OSTI ID:4328562

Saller, H A; Baroody, E M; Deem, H W; Stacy, J T; Klebanow, H L

Differential thermal-expansion effects in brazed joints involving Type 310 stainless steel and GE-62 brazing alloy were investigated. The work included dilation and modulus-of-elasticity measurements using homogeneous cast specimens and observations on bimetallic cantilevers made of the two constituents. No amomalies were found, although there were irregularities in the expansion of the brazing alloy which were ascribed to a solubility phenomencn. The elastic modulus of the brazing ailoy was determined. Cantilever deflections with temperature and with load were measured, and the results were interpreted using equations which treat the specimens as true bimetals consisting of two homogeneous components. The difference in thermal-expansion coefficients obtained in this way from the temperature-deflection data was consistent with the dilation measurements. The load measurements yielded an average elastic modulus for the bimetal which was about two-thirds of what would have been expected from knowledge of the components. This discrepancy probably arose from porosity which was observed in the braze component. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-12-001971
• OSTI ID: 4328562
• Report Number(s): BMI-863(Rev.)
• Country of Publication: United States
• Language: English

Related Subjects

ALLOY-GE
BEAM OPTICS
BRAZING
DEFORMATION
ELASTICITY
EQUATIONS
EXPANSION
GERMANIUM ALLOYS
JOINTS
MEASURED VALUES
MINERALOGY, METALLURGY, AND CERAMICS
POROSITY
SOLUBILITY
STAINLESS STEELS
TEMPERATURE
THERMODYNAMICS
WEIGHT