EFFECT OF POROSITY AND PARTICLE SIZE ON THE MECHANICAL STRENGTH OF SINTERED IRON

Abstract

The flexural and tensile strengths and the fatigue limits of sintered iron materials have been measured as a function of porosity and pore size. The resulting experimental values were lower than the theoretical. This discrepancy is attributed to a pore-size effect, analogous to the results of earlier work in which the influence of pore size on elastic modulus was studied (G. Artusio, V. Gallina, G. Mannone, and E. Sgambetterra, Powder Met ., 1966, 9 , (17), 89).