Thanyaporn Yodkaew, Monnapas Morakotjinda, Nattaya Tosangthum, Ornmanee Coovattachai, Rungtip Krataitong, Pisan Siriphol, Bhanu Vetayanugul, and Ruangdaj Tongsri

pp. 555 - 559

Abstract

The presence of non-reactive hard particles (Al₂O₃) causes some effects on P/M processing of sintered Fe materials. With constant compacting pressure and sintering conditions, particle size and quantity of Al₂O₃
 particles caused reduction of green and sintered densities. Tensile strengths, elongation and hardness of the sintered material were maximum when 2 wt.% of Al₂O₃ particles with particle size between 20-32 um was added. The presence of Al₂O₃ particles may reduce sinterability of the Fe powder.