Nitriding response of microminiature powder injection molded titanium

Toshiko Osada, Hideshi Miura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The gas-nitriding mechanisms effective in sintered titanium parts produced by metal injection molding (MIM) were investigated. The thermal debinding, sintering, and nitriding were performed continuously in a vacuum and gas-atmosphere furnace. Sintering was performed at 1,150°C, 1,200°C, and 1,250°C for 2 h and nitriding parameters of time and partial pressure in the furnace were investigated at 1,250°C temperature. The nitrogen content of the specimens was evaluated by means of the weight increase of the specimen. The microstructures and impurities in the sintered-and-nitrided specimens were evaluated by means of optical microscopy (OM) and elemental analysis using electron microprobe analysis (EMPA). The results showed that the sintered density increased with an increase in the sintering temperature and the nitrogen content increased with the decrease in specimen thickness and decrease in sintering temperature.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalInternational Journal of Powder Metallurgy (Princeton, New Jersey)
Volume46
Issue number2
Publication statusPublished - Mar 1 2010

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Nitriding
Titanium
Powders
Sintering
Furnaces
Nitrogen
Gases
Metal molding
Electron probe microanalysis
Injection molding
Partial pressure
Temperature
Optical microscopy
Vacuum
Impurities
Microstructure
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Metals and Alloys
  • Industrial and Manufacturing Engineering

Cite this

Nitriding response of microminiature powder injection molded titanium. / Osada, Toshiko; Miura, Hideshi.

In: International Journal of Powder Metallurgy (Princeton, New Jersey), Vol. 46, No. 2, 01.03.2010, p. 39-44.

Research output: Contribution to journalArticle

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