Soviet Powder Metallurgy and Metal Ceramics

, Volume 24, Issue 11, pp 821–823 | Cite as

Nature of the liquid phase forming during the sintering of R6M5 steel produced from machining waste

  • V. S. Panov
  • Yu. F. Kots
  • V. I. Bodnarchuk
Theory and Technology of Sintering, Thermal, and Chemicothermal Treatment Processes
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Conclusions

A thermogravimetric and electron microscopical investigation has been carried out into the nature and composition of the oxycarbide eutectic appearing at the grain boundaries of R6M5 steel at sintering temperatures below 1220°C. The need for two-stage sintering of R6M5 steel from machining waste as a means of obtaining nonporous blanks is explained. Optimum sintering conditions have been established, which are determined by the particle size of the powder and its oxygen content.

Keywords

Oxygen Particle Size Liquid Phase Oxygen Content Microscopical Investigation 

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Literature cited

  1. 1.
    O. V. Padalko, “Sintered high-speed steels,” in: Advances in Science and Technology: Powder Metallurgy [in Russian], Vol. 1, Vses. Inst. Nauchn. Tekh. Inform., Moscow (1983), pp. 5–26.Google Scholar
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    G. A. Meerson, S. S. Kiparisov, and S. I. Bogodukhov, “Comminution of W-Cr-V steel swarf,” Poroshk. Metall., No. 3, 10–15 (1969).Google Scholar
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    V. I. Tret'yakov, S. S. Kiparisov, V. S. Panov, and M. M. Smirnova, “Reduction and sintering of steel powder in hydrogen and in a vacuum,” Transactions of the 14th All-Union Conference on the Applications of Powder Metallurgy in the Manufacture of Machine Components [in Russian], Tashkent (1979), pp. 8–10.Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • V. S. Panov
    • 1
  • Yu. F. Kots
    • 1
  • V. I. Bodnarchuk
    • 1
  1. 1.Moscow Institute of Steel and AlloysUSSR

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