Analysis of dewaxing behavior of iron powder compacts based on a direct observation of Decomposing Lubricant During Sintering in a Furnace

Takashi Kawano, Tomoshige Ono, Yukiko Ozaki

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

Dewaxing behavior of iron powder compacts containing zinc stearate (ZnSt) or ethylene-bisstearamide (EBS) was directly observed during sintering. First, small droplets of lubricant melt appeared scattered on the surface. Then, they gradually formed large pools, and finally vaporized. In addition, melt of ZnSt more remarkably bubbled than that of EBS during vaporization. After sintering the compact containing ZnSt in nitrogen, spot stains of rough surface and concentrated zinc with the diameter of 1 mm were found on the top of their surface. It is believed that the lubricant melt inhomogeneously flew out through the easier paths in the compacts to the surface accompanied by the exhausting gas of the decomposed lubricants.

本文言語英語
ページ(範囲)83-88
ページ数6
ジャーナルJFE Technical Report
16
出版ステータス出版済み - 3 2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

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