Patent ID: 6127046
Filing Date: 2000-10-03
Classification: C21D,C23C,Y10T

Abstract:
A method of producing a substantially graphite-free intermetallic ferrous bond, comprising the steps of:a) identifying a ferrous first surface and a metallic second surface to be bonded together;b) treating said first surface by plating a bonding layer thereto to substantially eliminate graphite from a bond; andc) preparing said ferrous first surface for bonding by immersing said ferrous first surface in a molten substantially aluminum bath; andd) thermally joining said prepared ferrous first surface and said metallic second surface intermetallically in said bonding layer;wherein the bonding layer is a metal selected from the group consisting of chromium, vanadium, titanium, cobalt, palladium, niobium, molybdenum, and platinum; andwherein the ferrous first surface is cast.