A New Complex Phase in a High-Temperature Alloy

Abstract

THE grain boundary phase (Fig. 1) in Allegheny–Ludlum Steel Corporation's A-286 alloy has been separated electrolytically and examined by X-ray diffraction. (The nominal composition of this alloy is 0.05 per cent carbon, 15 per cent chromium, 26 percent nickel, 1.15 per cent molybdenum, 0.50 per.cent silicon, 53.5 per cent iron, 2.0 per cent titanium, 0.17 per cent aluminium, and 0.2 per cent vanadium.) This new constituent has been arbitrarily designated G phase.