Residually stressed multiple layer tungsten heavy alloys by metal injection molding

Donald F. Heaney, Timothy John Eden

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metal injection molding has been used to form laminated tungsten heavy alloys of different compositions (85W12Ni3Fe, 90W8Ni2Fe, 95W4Ni1Fe ). The alloy difference between the layers induces tensile and compressive stresses in the sintered condition. This paper demonstrates that multilayer heavy metal structures can be fabricated without defects. Two and three layer laminates were prepared and the stresses were predicted using laminate theory and compared to the x-ray diffraction stress measurement. Residual stress differentials of up to approximately 100 ksi have been measured. Laminate theory, using measured material properties, predicts these stress differentials to be approximately 150 ksi.

Original languageEnglish (US)
Title of host publicationAdvances in Powder Metallurgy and Particulate Materials - 2005, Proceedings of the 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005
Pages61-71
Number of pages11
StatePublished - Dec 1 2005
Event2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005 - Montreal, QC, Canada
Duration: Jun 19 2005Jun 23 2005

Publication series

NameAdvances in Powder Metallurgy and Particulate Materials - 2005, Proceedings of the 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005

Other

Other2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005
CountryCanada
CityMontreal, QC
Period6/19/056/23/05

All Science Journal Classification (ASJC) codes

  • Metals and Alloys
  • Surfaces and Interfaces

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  • Cite this

    Heaney, D. F., & Eden, T. J. (2005). Residually stressed multiple layer tungsten heavy alloys by metal injection molding. In Advances in Powder Metallurgy and Particulate Materials - 2005, Proceedings of the 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005 (pp. 61-71). (Advances in Powder Metallurgy and Particulate Materials - 2005, Proceedings of the 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005).