Description: Because of the transient presence of a liquid phase during sintering of graphite coated iron powder, a high percentage (95% to approx. 99.4%) of theoretical density can be achieved in a short time (approx. 10 min.) and at a moderate temperature (1175/sup 0/C). As a result, the mechanical properties of the graphite coated sintered steel are close to those of commercial plain carbon steels and much better than those of commercial powder metallurgy sintered steels. In addition, the physical and mechanical properties of Fe 2% C 20% W were studied in the as-sintered condition.
Date: June 1, 1978
Creator: Lam, T.T.
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