Fracture characteristics of alloyed iron aluminides Article

Agarwal, A, Balasubramaniam, R. (1996). Fracture characteristics of alloyed iron aluminides . Praktische Metallographie/Practical Metallography, 33(9), 453-466. 10.1515/pm-1996-330904

cited authors

  • Agarwal, A; Balasubramaniam, R

abstract

  • The fracture characteristics of Fe3Al and Fe3Al-5M (M = Ti, V, Nb, Ta, Cr, Mo and Si) intermetallics were studied by scanning electron microscopy. River line patterns which are characteristics features of cleavage fracture were observed in binary Fe3Al. Fe3Al-5Cr and Fe3Al-5Ti intermetallics showed mixed (intergranular + transgranular) mode of fracture. Fe3Al-5Mt (M1 = V, Nb, Ta, Mo and Si) cracked in a brittle manner during thermomechanical processing at 1000°C. This is due to the formation of brittle phases in these alloyed intermetallics which leads to crack initiation and subsequent failure. © Carl Hanser Verlag, München.

authors

publication date

  • January 1, 1996

published in

Digital Object Identifier (DOI)

start page

  • 453

end page

  • 466

volume

  • 33

issue

  • 9