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Mechanical properties of unsintered pressing. I. Phenomenological relations for unsintered pressing strength

  • Theory, Process Technology, Articles Forming
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

Theoretical and experimental relationships are considered for the strength of green compacts in relation to various properties of the powder (particle material strength, particle size and shape, and apparent powder density), together with the formation conditions (pressure) and test conditions. The effects of the powder properties, in particular the apparent density, may be examined from simple relationships of the form “strength - pressing density” with the use of a correction coefficient. One needs to use ideas from the mechanics of compressible media in considering the state of strain in the pressing and the test conditions.

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REFERENCES

  1. M. Yu. Bal’shin, Powder Metallography [in Russian], Metallurgizdat, Moscow (1948).

    Google Scholar 

  2. R. L. Sands and J. F. Watkinson, “Sintered stainless steel powders. Part 1,” Precis. Metal. Mold., 18, No. 12, 41–42 (1960).

    Google Scholar 

  3. I. Nikolakakis and N. Pilpel, “Effect of particle shape on the tensile strengths of powders,” Powder Technol., 42, No. 3, 279–283 (1985).

    Google Scholar 

  4. M. Yu. Bal’shin, Powder Metallurgy [in Russian], Mashgiz, Moscow (1948).

    Google Scholar 

  5. R. P. Seelig, “Fundamentals of pressing of metal powder,” The Physics of Powder Metallurgy, W. E. Kingston (ed.), McGraw-Hill: Book Comp. Inc. (1951), pp. 344–371.

    Google Scholar 

  6. R. Farley and F. H. H. Valentin, “Effect of particle size upon strength of powder,” Powder Technol., 1, No. 6, 344–354 (1968).

    Google Scholar 

  7. E. Klar and W. M. Shafer, “On the nature of green strength. II. Correlations between pore structure of powder particles and their electrical conductivity and strength in the compacted state,” Int. J. Powder Met., 5, No. 4, 5–16 (1969).

    Google Scholar 

  8. A. K. Radchenko, “Effects of hardness and plasticity in powder particle material on the shaping and strength of green pressings,” Current Topics in Physical Metallography [in Russian], Institute for Problems of Materials Science, Academy of Sciences of USSR, Kiev (1990), pp. 32–36.

    Google Scholar 

  9. R. Angers and A. Couture, “A new approach to increasing the compressibility of iron powder,” Int. J. Powder Met., 22, No. 2, 81–89 (1986).

    Google Scholar 

  10. A. F. Zhornyak and V. E. Oliker, “Trends in the pressing of sprayed iron powders. I. Effects of porous particle structure on compaction and mutual adhesion,” Poroshk. Metall., No. 2, 23–29 (1981).

    Google Scholar 

  11. A. F. Zhornyak and V. E. Oliker, “Effects of grain-size composition of sprayed iron powder on the technological properties of that powder and mixtures of it with zinc stearate,” Poroshk. Metall., No. 4, 1–5 (1978).

    Google Scholar 

  12. N. Claussen and J. Jahn, “Green strength of metal and ceramic compacts as determined by the indirect tensile test,” Powder Met. Int., 2, No. 3, 87–90 (1970).

    Google Scholar 

  13. A. K. Radchenko, “Strips of composite solders based on the copper-phosphorus system,” Advances in Making and Using Phosphides and Phosphorus-Containing Alloys, in 2 Volumes, Vol. 1 [in Russian], Nauka, Alma-Ata (1988), pp. 59–63.

    Google Scholar 

  14. A. F. Zhornyak and V. E. Oliker, “Effects of grain-size composition in sprayed iron powder and its mixtures with reduced powder on the properties of pressed and sintered materials,” Poroshk. Metall., No. 7, 86–90 (1978).

    Google Scholar 

  15. J. P. Jernot and J. L. Chermant, “Compression isostatique de poudre de cobalt,” Memoire Scientifique de la Revue Metallurgie, No. 10, 581–588 (1979).

  16. I. H. Moon and K. H. Kim, “Relationship between compacting pressure, green density, and green strength of copper powder compacts,” Powder Met., 27, No. 2, 80–84 (1984).

    Google Scholar 

  17. D. Bortzmeyer, “Tensile strength of ceramic powders,” J. Mat. Sci., 27, No. 12, 3305–3308 (1992).

    Google Scholar 

  18. G. V. Samsonov and M. S. Koval’chenko, Hot Pressing [in Russian], Gostekhizdat, Kiev (1962).

    Google Scholar 

  19. G. A. Baglyuk, G. E. Mazharova, S. N. Kaplya, et al., “Pressing blanks made of gas-sprayed high-speed steel powders,” Poroshk. Metall., No. 7, 9–12 (1990).

    Google Scholar 

  20. S. Baklouti, T. Chartier, and F. Baumard, “Mechanical properties of dry-pressed ceramic green products: The effect of their binder,” J. Amer. Ceram. Soc., 80, No. 8, 1992–1996 (1997).

    Google Scholar 

  21. L. N. Satapathy, “Effect of water soluble binders on the green properties of alumina ceramics,” Interceram., 49, No. 6, 448–453 (2000).

    Google Scholar 

  22. E. Klar and W. M. Shafer, “On the nature of green strength,” Int. J. Powder Met., 5, No. 2, 5–10 (1969).

    Google Scholar 

  23. E. B. Lozhechnikov, L. A. Rapoport, V. P. Chulkov, and V. I. Vasyukin, “Structure of the links between powder particles and their effects on the material working,” Proceedings of the All-Union Conference on Research and Development in Theoretical Aspects of Powder Metallurgy and Protective Coatings, 24–26 May 1983, Minsk [in Russian], Minsk (1984), pp. 116–118.

  24. A. P. Bogdanov and O. V. Roman, “Structure and properties of pressings made of iron powder obtained by dynamic pressing,” Powder Metallurgy: Proceedings of the 8th All-Union Conference on Progressive Methods of Making Components From Powders [in Russian], Vyssh. Shk., Minsk (1966), pp. 228–231.

    Google Scholar 

  25. A. H. Gerritsen, “The influence of the degree of stress anisotropy during consolidation on the strength of cohesive powdered materials,” Powder Technol., 43, No. 1, 61–70 (1985).

    Google Scholar 

  26. A. F. Zhornyak and V. E. Oliker, “Trends in the pressing of sprayed iron powders. III. Effects of zinc stearate on the compaction and particle adhesion,” Poroshk. Metall., No. 5, 16–22 (1981).

    Google Scholar 

  27. M. Yu. Bal’shin, “Dependence of the mechanical properties of powder metals on the porosity and the ultimate properties of powder cermet materials,” Dokl. AN SSSR, 67, No. 5, 831–834 (1949).

    Google Scholar 

  28. Yu. N. Semenov, “Determining the strength of metal powder pressings,” Zavod. Lab., No. 10, 1240–1247 (1958).

  29. I. M. Fedorchenko, G. A. Vinogradov, and O. A. Katrus, “A study of the properties of strips made from iron powder,” Poroshk. Metall., No. 4, 70–79 (1961).

    Google Scholar 

  30. M. Yu. Bal’shin, Scientific Principles of Powder and Fiber Metallurgy [in Russian], Metallurgiya, Moscow (1972).

    Google Scholar 

  31. Yu. E. Vya’ and A. M. Laptev, “A study of the strength of green powder pressings in axial and radial loading,” Poroshk. Metall., Nos. 5–6, 38–42 (2002).

  32. M. Strömgren, H. Aström, and K. Easterling, “The effect of interparticle contacts area on the strength of cold-pressed aluminium powder compacts,” Powder Metal., 16, No. 32, 155–165 (1973).

    Google Scholar 

  33. A. K. Radchenko and V. Yu. Starchenko, “A study of the strength in shear for green strips of composite solders,” Current Topics in Physical Metallography [in Russian], Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev (1997), pp. 94–102.

    Google Scholar 

  34. G. I. Aksenov, The Principles of Powder Metallurgy [in Russian], Kuibyshev Kn. Izd., Kuibyshev (1962).

    Google Scholar 

  35. N. V. Shepel’skii and V. N. Kornilov, “Effects of strain degree on the renewal of granule surfaces during pressing,” Tekhnologiya Legkikh Splavov, No. 6, 29–34 (1981).

  36. V. N. Kornilov and N. V. Shepel’skii, “Effects of renewal of granule contact surfaces on the seizure strength,” Tekhnologiya Legkikh Splavov, No. 2, 22–25 (1985).

  37. B. A. Aref’ev, V. V. Kuleshov, and V. M. Panovko, “Regularities in joins between powder particles in plastic deformation,” Poroshk. Metall., No. 8, 15–20 (1991).

    Google Scholar 

  38. E. I. Gutmanas and A. Lawley, “Cold sintered — a new powder consolidation process,” Annu. Powder Met. Conf. Proc. (May 1–4, 1983, New Orleans, La), Princeton, New York (1984), pp. 653–667.

    Google Scholar 

  39. E. I. Gutmanas, Y. Schefer, and D. Zak, “Mechanical properties and microstructure of cold sintered ferrous alloys and composites,” Int. Conf. on Powder Metallurgy (P/m-82 in Europe, June 20–25, 1982, Milan and Florence, Italy), Milan and Florence (1982), pp. 643–650.

  40. E. I. Gutmanas, “High pressure compaction and cold sintered of stainless steels powders,” Powder Met. Int., 12, No. 4, 378–382 (1980).

    Google Scholar 

  41. Yu. G. Dorofeev and V. A. Skorikov, “Intergrowth at contact surfaces for metal particles in hot dynamic pressing,” Poroshk. Metall., No. 6, 43–47 (1975).

    Google Scholar 

  42. P. Kasiraj, T. Vreeland, R. B. Schwarz Jr., and T. J. Ahrens, “Shock consolidation of rapidly solidified steel powder,” Acta Metal., 32, No. 8, 1235–1241 (1984).

    Google Scholar 

  43. P. Doremus, F. Toussaint, and O. Alvain, “Simple tests standard procedure for the characterization of green compacted powder,” Recent Developments in Computer Modeling of Powder Metallurgy Processes, A. Zavaliangos and A. Laptev (eds.), IOS Press, Amsterdam, Berlin, Oxford, Tokyo, and Washington (2001), pp. 282–293.

    Google Scholar 

  44. B. W. Darvell, “Uniaxial compression tests and the validity of indirect tensile strength,” J. Mat. Sci., 25, No. 2A, 757–780 (1990).

    Google Scholar 

  45. T. Sheppard and H. B. Meshane, “Strength of cold-pressed compacts,” Powder Metal., No. 3, 120–125 (1980).

    Google Scholar 

  46. D. M. Ashton, R. Farley, and F. H. H. Valentin, “An improved apparatus for measuring the tensile strength of powders,” J. Sci. Instrum., 41, No. 12, 763–765 (1964).

    Google Scholar 

  47. D. K. Worn and R. P. Penks, “Fabrication of strips to poor nickel by powder rolling,” Powder Metal., No. 3, 45–49 (1959).

    Google Scholar 

  48. K. Easterling and A. R. Thölen, “The role of surface energy and powder geometry in powder compaction,” Powder Metal., 16, No. 31, 112–118 (1973).

    Google Scholar 

  49. A. K. Radchenko and O. A. Katrus, “Shapability and strength in powder rollings,” Poroshk. Metall., No. 7, 11–18 (1987).

    Google Scholar 

  50. V. K. Golubev and K. G. Rabinovich, “Effects of the initial state on the strength of pressed lithium hydride,” Probl. Prochnosti, No. 6, 134–150 (1999).

    Google Scholar 

  51. I. M. Fedorchenko, “A study on the specific surface of metal powders,” Izv. AN SSSR, Tekhn. Nauki, No. 3, 411–418 (1951).

  52. L. Parilak, E. Dudrova, and E. Rudnayova, “Aproximativne vyjadrenie lisovacej krivky technickich pra kovych kovov,” Pokzoky Pra kove Metalurgie, No. 3, 19–30 (1983).

  53. S. V. Muchnik, A. K. Radchenko, O. A. Katrus, et al., “Production and shaping of copper phosphide Cu3P powders,” Poroshk. Metall., No. 11, 24–27 (1992).

    Google Scholar 

  54. N. I. Shcherban’, “Effects of porosity on the mechanical properties of materials made by powder metallurgy,” Poroshk. Metall., No. 9, 57–73 (1973).

    Google Scholar 

  55. E. Ryshkewitsh, “Compression strength of porous sintered alumina and zirconia,” J. Amer. Ceram. Soc., 36, No. 2, 65–68 (1953).

    Google Scholar 

  56. B. Ya. Pines, A. F. Sirenko, and N. I. Sukhinin, “Trends in the mechanical strength in bodies made by sintering metal powders,” Researches on Heat-Resisting Alloys, Vol. 3 [in Russian], Izd. AN SSSR, Moscow (1958), pp. 326–339.

    Google Scholar 

  57. V. T. Troshchenko and V. N. Rudenko, Strength in Cermet Materials and Methods of Determining It [in Russian], Tekhnika, Kiev (1965).

    Google Scholar 

  58. G. F. Tikhonov and V. A. Vasil’ev, “Effects of the temperature-time factor on sintering and the properties of cermet specimens,” Tr. Gor’k. Politekhn. Inst.,. 28, Issue 8, 21–24 (1972).

    Google Scholar 

  59. V. V. Skorokhod, “Physicomechanical properties of porous materials,” Powder Metallurgy’77 [in Russian], Nauk. Dumka, Kiev (1977), pp. 120–129.

    Google Scholar 

  60. M. Shtern and O. Mikhailov, “Defects formation in die compaction: Prediction and numerical analysis,” Proc. of Powder Metallurgy European Congress (22–24 October 2001, Nice, France), Vol. 3, Nice (2001), pp. 50–57.

    Google Scholar 

  61. I. Sandler, F. L. DiMaggio, and Y. Baladi, “Generalized cap model for geological materials,” J. Geotechn. Engineer. Division ASCE, 102, No. GT7, 683–699 (1976).

    Google Scholar 

  62. O. Coube and H. Riedel, “Numerical simulation of metal powder die compaction with special consideration of cracking,” Powder Metal., 43, No. 2, 123–131 (2000).

    Google Scholar 

  63. Hibbitt, Karlsson, and Sorensen, Inc. ABAQUS Explisit: Users, Example Problems, and Theory Manuals, Version 5.8 (1998).

  64. A. K. Radchenko, “Choosing a particle shape criterion in application to forming,” Current Topics in Physical Metallography [in Russian], Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev (2002), pp. 42–50.

    Google Scholar 

  65. M. B. Shtern and A. C. F. Cocks, “The structure of constitutive laws for compaction of metal powders,” Recent Development in Computer Modelling of Powder Metallurgy Processes, IOS Press, Amsterdam, Berlin, Oxford, Tokyo, and Washington (2001), pp. 71–81.

    Google Scholar 

  66. M. Shtern, “On the constitutive potentials for powders and porous bodies,” Mechanics of Granular and Porous Materials, N. A. Fleck and A. C. F. Cocks (eds.), Kluwer Academic Publishers, Dordrecht (1997), pp. 1–10.

    Google Scholar 

  67. V. S. Zolotarevskii, Mechanical Properties of Metals [in Russian], Metallurgiya, Moscow (1983).

    Google Scholar 

  68. E. M. Mikhailovskii, “Determining the ultimate strength of a brittle material in tension,” Probl. Prochnosti, No. 11, 53–56 (1976).

    Google Scholar 

  69. V. M. Kornev, A. G. Demeshkin, and T. A. Korneva, “Theoretical and experimental estimates of the brittle strength of bodies made by compacting powders,” Prikl. Mekhanika i Teoret. Fizika, 40, No. 5, 208–215 (1999).

    Google Scholar 

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  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev

    A. K. Radchenko

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Translated from Poroshkovaya Metallurgiya, Nos. 9–10(439), pp. 12–27, September–October, 2004.

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Radchenko, A.K. Mechanical properties of unsintered pressing. I. Phenomenological relations for unsintered pressing strength. Powder Metall Met Ceram 43, 447–460 (2004). https://doi.org/10.1007/s11106-005-0004-7

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  • DOI: https://doi.org/10.1007/s11106-005-0004-7

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