J Mater Sci Technol ›› 2006, Vol. 22 ›› Issue (02): 257-260.

• Research Articles • Previous Articles     Next Articles

Fabrication of Iron-base Alloy by Spark Plasma Sintering

Yuanyuan LI, Xiaoqiang LI, Yan LONG, Wei XIA, Min ZHU, Weiping CHEN   

  1. College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China
  • Received:2004-11-23 Revised:2005-06-17 Online:2006-03-28 Published:2009-10-10
  • Contact: Yuanyuan LI

Abstract: Fe-2Cu-2Ni-1Mo-0.8C (wt pct) elemental mixed powders were rapidly sintered within 6~min by spark plasma sintering, and the effects of sintering parameters on the densification degree and performance of the as-sintered materials were investigated. Results showed that when a proper combination of pulse electric current and constant electric current was employed for sintering, the density and bend strength of the as-sintered material reached the maxima, being 7.61×103 kg/m3 and 1540 MPa, respectively. Its corresponding fracture morphology was characterized as the mix of ductile, intergranular and cleavage fractures.

Key words: Spark plasma sintering, Iron-base alloy, Density, Microstructure and performance