Effect of addition of a small amount of Zr on the sintering behavior of water atomized 316L stainless steel powder

Hidefumi Nakamura, Hisataka Toyoshima, Akihiko Chiba, Kouetu Abe

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The main objective of the present work is to evaluate the effects of Zr addition on various properties of SUS316L stainless steel powders produced by water-atomization of liquid metals. The results are summarized as follows; 1 ) The sintering density of SUS316L stainless steel powders pre-alloyed with 0.05 mass% of Zr was about 2 percent higher than that of the powder containing no Zr. However, in the powder pre-mixed with 0.05 mass% of Zr, no effect of Zr addition was observed. 2) Mechanical properties were improved by pre-alloying with Zr, but impaired by pre-alloying with Zr. 3) In pre-alloyed powder with 0.05 mass% of Zr, the increase of sintering density to start from 1073 K was observed. The micro-structural observation showed that the neck formation between particles started at 1073 K. The temperature is lower by about 100 K compared with the powder containing no Zr.

Original languageEnglish
Pages (from-to)126-133
Number of pages8
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume57
Issue number2
DOIs
Publication statusPublished - 2010 Feb

Keywords

  • Corrosion resistance
  • Metal injection molding
  • Sintered density
  • Water atomized powder
  • Zr

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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