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Properties of plasma-sprayed chromium-nickel spinel coatings

  • Powder Metallurgical Materials, Parts, and Coatings
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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    The strength with which a coating of chromium-nickel spinel adheres to an OT-4 titanium alloy substrate lies in the range 1.15–1.40 kg/mm2. Preheating the surface to be coated to 450°C increases the adhesion of the coating by 25–30%.

  2. 2.

    The adhesion of a coating to its substrate begins to decrease appreciably after 10 thermal cycles.

  3. 3.

    An 80% Ni-20% Cr alloy undercoat has no effect upon the adhesion of a spinel coating and adversely affects its thermal fatigue resistance.

  4. 4.

    The degree of blackness (coefficient of absorption) of a spinel coating is 0.94–0.95.

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Literature cited

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Authors and Affiliations

  1. Voronezh

    O. B. Chevela, L. M. Ryabich, K. G. Akinin & Yu. K. Pantsyrev

Authors
  1. O. B. Chevela
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  2. L. M. Ryabich
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  3. K. G. Akinin
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  4. Yu. K. Pantsyrev
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 10(166), pp. 40–43, October, 1976.

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Chevela, O.B., Ryabich, L.M., Akinin, K.G. et al. Properties of plasma-sprayed chromium-nickel spinel coatings. Powder Metall Met Ceram 15, 769–771 (1976). https://doi.org/10.1007/BF00796193

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  • DOI: https://doi.org/10.1007/BF00796193

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