Effects of tin powder on properties of sintered stainless steels

Authors

  • Nattaya Tosangthum National Metal and Materials Technology Center (MTEC)
  • Piyanuch Muangtong Faculty of Engineering, King Mongkut's Institute of Technology North Bangkok
  • Ornmanee Coovattanachai National Metal and Materials Technology Center (MTEC)
  • Monnapas Morakotjinda National Metal and Materials Technology Center (MTEC)
  • Thanyaporn Yodkaew National Metal and Materials Technology Center (MTEC)
  • Pongsak Wila National Metal and Materials Technology Center (MTEC)
  • Rungthip Krataitong National Metal and Materials Technology Center (MTEC)
  • Bhanu Vetayanugul National Metal and Materials Technology Center (MTEC)
  • Ruangdaj Tongsri National Metal and Materials Technology Center (MTEC)

Keywords:

Sintering, Sn powder, stainless steels, sintered properties

Abstract

It was found that addition of 4 wt.% of gas-atomized tin (Sn) powder to stainless steel powders could alter sintered properties of P/M stainless steels. For stainless steel series 300 powders, Sn powder addition resulted in improved tensile properties and hardness. It was speculated that the liquid Sn, formed during sintering process, acted as either a sintering activator or a solvent for nickel (Ni) dissolution. Sintering activation existed because the liquid Sn acted as a diffusion path for powder particle constituent atoms. Dissolution of Ni in Sn was simply due to diffusion of Ni atoms from stainless steel series 300 particles in the liquid Sn. Addition of Sn powder to stainless steel series 400 powders caused extremely adverse effects on tensile properties. Only hardness of the sintered stainless steel series 400-Sn materials could be examined.

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References

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Published

2017-04-23

How to Cite

[1]
N. . Tosangthum, “Effects of tin powder on properties of sintered stainless steels”, J Met Mater Miner, vol. 18, no. 1, Apr. 2017.

Issue

Vol. 18 No. 1 (2008)

Section

Original Research Articles

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