Soviet Powder Metallurgy and Metal Ceramics

, Volume 25, Issue 8, pp 694–699 | Cite as

Structure and failure of nickel aluminide powder

  • Yu. L. Krasulin
  • S. M. Barinov
  • M. Siesar
  • L. Parilak
  • J. Dusa
Methods of Examining and Properties of Powder Materials


The material made of the NiAl powders with the recrystallized structures has low strength and cracking resistance even if its porosity is high, similar to theoretical. This is caused by intercrystalline brittleness. The material with the aggregate structure has higher mechanical properties. Cracking resistance in the brittle-ductile transition range changes in relation to porosity which weakens the load-carrying cross section and localizes deformation.


Mechanical Property Porosity Nickel Brittleness NiAl 
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Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • Yu. L. Krasulin
    • 1
  • S. M. Barinov
    • 1
  • M. Siesar
    • 1
  • L. Parilak
    • 1
  • J. Dusa
    • 1
  1. 1.Institute of MetallurgyAcademy of Sciences of the USSRUSSR

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