TY - GEN
T1 - Residually stressed multiple layer tungsten heavy alloys by metal injection molding
AU - Heaney, Donald F.
AU - Eden, Timothy John
PY - 2005/12/1
Y1 - 2005/12/1
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84883348822
SN - 0976205726
SN - 9780976205722
T3 - Advances in Powder Metallurgy and Particulate Materials - 2005, Proceedings of the 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005
SP - 61
EP - 71
BT - Advances in Powder Metallurgy and Particulate Materials - 2005, Proceedings of the 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005
T2 - 2005 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2005
Y2 - 19 June 2005 through 23 June 2005
ER -