MATERIAL – BRAZED STAINLESS STEEL SANDWICH – EXPOSURE TO WEATHERING UNDER SEASHORE CONDITIONS – EFFECT ON -

摘要

The condition of the panels was periodically checked by flash-testing. One panel, having silver-manganese brazing alloy (uninhibited) failed the flash test -after 9 months exposure and was returned to Port Worth for examination. Two other silver-manganese brazed panels, (inhibited against corrosion), failed the flash test after 17 months exposure and were returned to Fort Worth. The remaining panel, having silver-copper-lithium brazing alloy, was returned intact to Fort Worth after 38 months exposure. It was subsequently flash-tested, without failure, and was then structurally tested in torsional shear to an ultimate falling stress of 77.000 psi. (calc). This test demonstrated the superior corrosion-resistance qualities of Ag-Cu-Li brazing alloy for 17-7 PH stainless steel sandwich panels.