Study of covering conditions for sintering of metal injection moulded commercially pure titanium

Authors

  • Nattapol Muenya National Metal and Materials Technology Center
  • Anchalee Manonukul National Metal and Materials Technology Center

Keywords:

Pure titanium, Covering conditions, Oxygen content, Sintering, Metal injection moulding

Abstract

In metal injection moulding process, sintering for some specific materials is different from general materials. Titanium is a material that is not easy to sinter because it is a very reactive metal at high temperature. The high quality of the titanium component is difficult to control, especially so in point of the levels of carbon and oxygen, which have large effects on the mechanical properties. Commercially pure titanium was injected, debinded and sintered at 1150°C and 1250°C in high vacuum without a cover, and with a quartz cover, a mullite cover and an alumina cover, respectively. From the physical and mechanical properties of the sintered parts, it can be summarised that it is necessary to protect commercially pure titanium sintered parts from contamination. The cover must be made of a material that is stable at the sintering temperature. Quartz and alumina are possible candidates as both can be used to sinter good quality titanium. However, alumina is a better choice considering the cost and toughness.

Downloads

Download data is not yet available.

References

Froes, F. H. and German, R. M. 2004. Titanium powder injection molding (PIM). Met. Powder Rep. 55: 20-23.

Froes, F. H., Mashl, S. J., Hebeisen, J. C., Moxson, V. S. and Duz, V. A. 2004. The technologies of titanium powder metallurgy. J. Miner. Met. Mater. Soc. 56(11):46-48

German, R. M. 1996. Sintering theory and practice. New York: Wiley.

German, R. M. and Bose, A. 1997. Injection molding of metals and ceramics. New Jersey: Metal Powder Industries Federation.

Leyens, C. and Peter, M. 2003. Titanium and titanium alloys: fundamentals and applications. Weinheim: Wiley-VCH.

Manonukul, A. 2007. Sintering process optimisation of metal injection moulded pure titanium. In: Proceeding of International Symposium in Science and Technology, 31 July – 1 August, Osaka, Kansai University, Japan: 54-59.

Chuankrerkkul, N., Messer, P.F. and Davies, H.A. 2007. Powder injection moulding of cemented carbides: Feedstock preparation and injection moulding. J. Met. Mater. Miner. 17(1):53-57.

Takahashi, S., Shimizu, S. and Shimodaira, K. 1999. Method of manufacturing sintered compact. US Patent 5,911,102.

Downloads

Published

2017-04-15

How to Cite

[1]
N. Muenya and A. Manonukul, “Study of covering conditions for sintering of metal injection moulded commercially pure titanium”, J Met Mater Miner, vol. 20, no. 1, Apr. 2017.

Issue

Vol. 20 No. 1 (2010)

Section

Original Research Articles

License

Copyright (c) 2017 Journal of Metals, Materials and Minerals

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors who publish in this journal agree to the following terms:

    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.

 

    1. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.