Abstract: A process for preparing an iron group sintered compact involves forming an admixture of an iron group metal alloy powder additive and iron powder wherein the melting point of the alloy additive is at least about 50.degree. C. lower than that of the iron, compacting the admixture to form a green compact, and sintering the green compact at a temperature of from about 20.degree. C. above the solidus to about 100.degree. C. above the liquidus of the alloy additive whereby a sintered compact is formed. A compact having an iron group alloy additive as a continuous phase and iron as a discontinuous phase wherein the continuous phase has a melting point of at least about 50.degree. C. lower than that of the discontinuous phase can be prepared at lower sintering temperatures than a typical iron powder.

Abstract: A process is disclosed for producing a composite in the form of a sheet which involves forming a slurry of a brazing alloy powder and a vehicle, applying the slurry as a pattern or as a layer to a structural substrate, removing the vehicle from the slurry, and melting the alloy uniformly into a homogeneous mass without melting the substrate, and thereafter cooling the same to solidify it into a self supporting sheet.

Abstract: A process for addition of boron to an alloy which involves forming a melt of the alloy and a reactive metal, selected from the group consisting of aluminum, titanium, zirconium and mixtures thereof to the melt, maintaining the resulting reactive mixture in the molten state and reacting the boric oxide with the reactive metal to convert at least a portion of the boric oxide to boron which dissolves in the resulting melt, and to convert at least portion of the reactive metal to the reactive metal oxide, which oxide remains with the resulting melt, and pouring the resulting melt into a gas stream to form a first atomized powder which is subsequently remelted with further addition of boric oxide, re-atomized, and thus reprocessed to convert essentially all the reactive metal to metal oxide to produce a powdered alloy containing specified amounts of boron.

Abstract: Alloys consisting essentially of controlled amounts of boron, controlled amounts of silicon, and at least one element selected from Cr, Ni, Mn, Mo, V, W, Cb, Ti and when present these elements are present in the following amounts by weight from 0% to about 35% by weight of Cr, from 0 to about 25% by weight of Ni, from 0 to 12% by weight of Mn, from 0 to 5% by weight of Mo, from 0 to 5% by weight of V, from 0 to 15% by weight of W, from 0 to 3% by weight of Cb and from 0 to 2% by weight of Ti, balance of the alloy is iron in amounts greater than 50%. Such alloys are satisfactory brazing and hard surfacing alloys.

Abstract: A brazing alloy having a composition consisting essentially of from about 1% to about 3% by weight boron, from about 8% to about 12% by weight silicon, and the balance copper is beneficial in brazing stainless steels and other ferrous metals.

Abstract: A composition is provided consisting essentially of from about 50% to about 99% by weight of a silver-copper based brazing alloy and as an additive, from about 1% to about 50% to the composition, of a metal or metal alloy having essentially the same density as the brazing alloy and being essentially insoluble in the brazing alloy. The additives are selected from (a) molybdenum, (b) mixtures of molybdenum and at least one metal selected from the group consisting of cobalt, iron and tungsten and (c) mixtures of tungsen and at least one metal selected from iron and cobalt.

Abstract: Nickel based brazing alloys containing embrittling additives are made by depositing a powder blend on a nickel substrate and roll compacting to form an alloy foil having the desired metallurgical content.