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Abstract
Data are presented for the tensile properties, fatigue S–N curves in rotating bend, and threshold stress intensities for fatigue crack growth of three Distaloy type materials. Distaloys SA, AB, and AE have been studied in the density range 6400–7200 kg m−3, in the as sintered and quenched and tempered conditions. Combinations of threshold stress intensities and fracture stress are similar to those observed for some conventionally wrought engineering steels. Results are interpreted in the light of metallographic and fractographic studies. PM/0494