INITIAL EVALUATION OF BRAZEABILITY OF INCONEL 718.
MCDONNELL AIRCRAFT CORP ST LOUIS MO
Pagination or Media Count:
A preliminary test was conducted to investigate the feasibility of brazing Inconel 718 with various braze alloys. The braze alloy - Inconel 718 specimens were evaluated by a series of wetting tests. Flat Inconel 718 specimens were vacuum brazed with three nickel base and three silver base alloys. The flow radius and wetted area were measured, and the specimens were sectioned for metallographic determination of the solidified contact angle between the braze alloy surface and the base metal. Within the scope of these tests, the nickel base braze alloys exhibited superior wetting and flow characteristics to silver base braze alloys when applied to Inconel 718. Author