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Two new specimens are introduced and evaluated for the study of soldered joints in engine coolant environments. A cup-shaped specimen has been designed that will provide visual appearance determination of the effect of solder joint processing and operation variables on the propensity toward the development of blooming corrosion on soldered radiator joints. A stressed soldered joint specimen assists in discrimination of solder and coolant variables on exposure in conformance to the ASTM Corrosion Test for Engine Coolants in Glassware (D 1384-70) test environment. These new specimens used in conjunction with ASTM D 1384 glassware test provide added information that is useful in evaluating solder alloy and coolant interactive effects in copper and brass radiator engine systems.
solders, coolants, test methods, corrosion, radiators
Staff consultant/Metals Joining, Packer Engineering Associates, Inc., Naperville, Ill.