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Grain boundary fracture of L12 type intermetallic compound Ni3Ai

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Abstract

AES analysis of intergranular fracture surfaces of Ni3Al showed that grain boundaries are free from any detectable amount of impurity segregation. From this finding it was suggested that grain boundary brittleness in Ni3Al is not due to the segregation of harmful elements. X-ray diffraction and SEM observation of the fracture surfaces detected a plastically strained layer of which thickness is compa-rable to grain size.

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Authors and Affiliations

  1. The Research Institute for Iron, Steel, and Other Metals, Tohoku University, 980, Sendai, Japan

    T. Ogura (Associate Professor), S. Hanada (Research Associate), T. Masumoto (Professors) & O. Izumi (Professors)

Authors
  1. T. Ogura
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  2. S. Hanada
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  3. T. Masumoto
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  4. O. Izumi
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Ogura, T., Hanada, S., Masumoto, T. et al. Grain boundary fracture of L12 type intermetallic compound Ni3Ai. Metall Trans A 16, 441–443 (1985). https://doi.org/10.1007/BF02814342

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  • DOI: https://doi.org/10.1007/BF02814342

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