Liquid phase sintering microstructure homogenization

Table 1 is a partial listing of the comp>ositions of the common p>orous sintered P/M materials. Selected compositions of P/M materials possessing near theoretical full density (>99 %), sometimes called full dense or high-performance P/M materials, are shown in Table 2 [2,9]. Full dense P/M parts are made by liquid phase sintering, powder injection molding, extrusion, or hot isostatic pressing. Important full dense P/M materials include P/M superalloys, P/M tool steels, several P/M aluminum alloys, and many P/M specialty alloys. Owing to their refined microstructure and greater homogeneity, full dense P/M materials offer superior mechanical properties with equal or superior corrosion resistance, compared to their wrought or cast counterparts.

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