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Properties and structure of strained and annealed molybdenum

  • Refractory Metals and Alloys
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Rolling of molybdenum causes irregularity of the grain size. We found strongly deformed fine grains elongated in the rolling direction and less deformed coarse grains surrounding them. Such a structure and the substantial microdeformations in regions of elongated fine grains coexisting with coarse grains are the reasons for layering.

  2. 2.

    We constructed a recrystallization diagram for molybdenum which makes it possible to prescribe the conditions of thermomechanical treatment. We determined the temperature and deformation regions for the development of polygonization.

  3. 3.

    We determined the tabular values of the elasticity modulus of molybdenum treated at temperatures up to 500°C.

The 300°C peak of internal friction in deformed molybdenum at a frequency of 735 Hz is caused by the relaxation of distortions of the crystal lattice.

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Literature cited

  1. M.A. Krishtal and B.M. Drapkin, Zavod. Lab., No.11 (1956).

  2. S.A. Golovin, V.I. Baranova, and K.G. Kudinova, In: Production of Steel and Alloys and Effect of Treatment on Their Properties [in Russian], Tula (1965).

  3. I. Ratliff and H. Ogden, Defence Metals Inform. Center Memorandum,157 (1962).

  4. F.O. Jones, In: Properties and Treatment of Refractory Metals and Alloys [Russian translation], IL (1961).

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  7. E. Zedler, D. Müller, and E. Rexer, Z. Metal.,55, No.8 (1964).

  8. M.E. Blanter, Method of Investigating Metals and Treatment of Experimental Data [in Russian] Metallurgizdat (1952).

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  10. Yu.V. Piguzov and V.D. Verner, In: Internal Friction in Metals and Alloys [in Russian], No.18, Nauka (1966).

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Authors
  1. M. A. Krishtal
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  2. S. A. Golovin
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  3. A. P. Mokrov
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  4. T. S. Shishkhanov
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  5. Ya. M. Vitorskii
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Additional information

Tula Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 54–57, July, 1967.

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Krishtal, M.A., Golovin, S.A., Mokrov, A.P. et al. Properties and structure of strained and annealed molybdenum. Met Sci Heat Treat 9, 534–537 (1968). https://doi.org/10.1007/BF00654256

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  • DOI: https://doi.org/10.1007/BF00654256

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