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

Reinshagen, J.H. and Neupaver, A.J. 1989. Fundamentals of P/M Stainless Steels. In : Advances in Powder Metallurgy, (compiled by Gasbarre, T.G. and Jandeska, W.J.) Princeton, N.J. : Metal Powder Industries Federation. 2 : 283-295.

Vetayanugul, B., Coovattanachai, O., Krataitong, R., Tongsri, R. and Burke, P. 2002. Effect of Sintering Temperature on Mechanical Properties of Parts From 316L Stainless Steel Powders. 28th Congress on Science and Technology of Thailand, Bangkok, Thailand : 637.

German, R.M. 1998. Powder Metallurgy of Iron and Steel. New York : John Wiley & Sons.

Samal, P.K., Terrell, J.B. and Klar, E. 2001. Effect of Sintering Atmosphere on the Corrosion Resistance and Mechanical Properties of Austenitic Stainless Steels-Part II. In : Advances in Powder Metallurgy and Particulate Materials Princeton, N.J. : Metal Powder Industries Federation : 7- 111-7-120.

Simsons, J.W., Slanens, G.J. and Dunning, J.S. 1995. High-Strength Stainless Steels Through Nitrogen-Alloying. In : Advances in Powder Metallurgy and Particulate Materials. Princeton, N.J. : Metal Powder Industries Federation. 10-63 -10-76.

Rosso, M., Porto, G. and Wood, J.V. 1996. Properties of High Density Sintered 316L Stainless Steels. In : Advances in Powder Metallurgy and Particulate Materials. Princeton, N.J. : Metal Powder Industries Federation. 17-87 - 17-97.

Exner, H.E. and Arzt, E. 1996. Sintering Processes, Physical Metallurgy. 4th ed. New York : Elsevier : 2628-2262.

Tosangthum, N., Coovattanachai, O., Krataitong, R., Morakotjinda, M., Daraphan, A., Vetayanugul, B. and Tongsri, R. 2006. Effect of Admixing Ni and Cu Powders on Property of Sintered 316L Alloy. Chiang Mai J. Sci. 33(1) : 45- 52.

Coovattanachai, O., Tosangthum, N., Morakotjinda, M., Yotkaew, T., Daraphan, A., Krataitong, R., Vetayanugul, B.and Tongsri, R. 2007. Performance improvement of P/M 316L by addition of liquid phase forming powder. Mater. Sci. Eng. A 445-446 : 440-445.

Tosangthum, N., Coovattanachai, O., Morakotjinda, M., Yotkaew, T., Daraphan, A., Krataitong, R., Vetayanugul, B.and Tongsri, R. 2007. Sintering Activation of 316L Powder Using a Liquid Phase Forming Powder. ICFT, Phuket, Thailand, May : 10-12.

German, R.M. and Olevsky, E.A. 1998. Microstructure coarsening during liquid phase sintering. In : Advances in Powder Metallurgy and Particulate Material. Princeton, N.J. : Metal Powder Industries Federation. Metal Powder Industries Federation. : 12-3 - 12-17.

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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.

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Original Research Articles

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