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Structure of powder brazing alloys based on the system Ni-Cr-Si-Fe-B-C(-Mo)

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

A study was made of the sinterability of PKh12N75S8R brazing alloy powder and a mechanical mixture of this powder with 15% of molybdenum (brazing alloy No. 6MA), which are widely used for the brazing of high-alloy steels. Appreciable shrinkage of compacts begins at 1000°C and steadily increases with rise in sintering temperature. The most intense shrinkage is observed above 1100°C, i.e., at temperature close to the solidus. The structure of brazing alloy No. 6MA produced by sintering at 1175–1200°C or melting consists of a γ solid solution and molybdenum suicides and chromium borides of various compositions.

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Literature cited

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Authors and Affiliations

  1. I. P. Bardin Central Scientific-Research Institute of Ferrous Metallurgy, USSR

    B. A. Borok, M. I. Chikunov, R. P. Shchegoleva, É. N. Ostrovskaya & N. A. Ruch'eva

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  1. B. A. Borok
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  2. M. I. Chikunov
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  3. R. P. Shchegoleva
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  4. É. N. Ostrovskaya
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  5. N. A. Ruch'eva
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Translated from Poroshkovaya Metallurgiya, No. 10 (118), pp. 77–84, October, 1972.

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Borok, B.A., Chikunov, M.I., Shchegoleva, R.P. et al. Structure of powder brazing alloys based on the system Ni-Cr-Si-Fe-B-C(-Mo). Powder Metall Met Ceram 11, 835–841 (1972). https://doi.org/10.1007/BF00844711

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  • DOI: https://doi.org/10.1007/BF00844711

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