The Study Of The Impact Of Surface Preparation Methods Of Inconel 625 And 718 Nickel-Base Alloys On Wettability By BNi-2 And BNi-3 Brazing Filler Metals

Author:

Lankiewicz K.,Baranowski M.,Babul T.,Kowalski S.

Abstract

Abstract The article discusses the impact of surface preparation method of Inconel 625 and 718 nickel-base alloys in the form of sheets on wettability of the surface. The results of the investigations of surface preparation method (such as nicro-blasting, nickel plating, etching, degreasing, abrasive blasting with grit 120 and 220 and manually grinding with grit 120 and 240) on spreading of BNi-2 and BNi-3 brazing filler metals, widely used in the aerospace industry in high temperature vacuum brazing processes, are presented. Technological parameters of vacuum brazing process are shown. The macro- and microscopic analysis have shown that nicro-blasting does not bring any benefits of wettability of the alloys investigated.

Publisher

Walter de Gruyter GmbH

Subject

Metals and Alloys

Reference1 articles.

1. The High - Temperature Wetting Balance and the Influence of Grit Blasting on Brazing of IN;Solomon;Welding Journal October,2003

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