Skip to main content
SpringerLink
Log in

Effect of surface erosion of porous metals on their structural and hydraulic characteristics

  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

During treatment of PNS type porous permeable specimens with hard particles at a velocity of 12 m/sec, the metal particles experience only slight surface microdeformation. Under these conditions the pore size decreases by a factor of only 1.25 or less. The substantial fall in permeability observed in this case is due to blockage of specimen pores by the hard particles and to closure of some pores during the plastic flow of metal on the specimen surface. Treatment of PNS type porous permeable specimens with hard particles at a velocity of 40–60 m/sec is accompanied by appreciable plastic deformation of metal particles on the specimen surface. The pore size decreases to one-fifth or less with PNS8 and PNS10 and to less than 1.19 μm with PNS5 and PNS6. The permeability of specimens falls, but their coefficients kpe are higher than the values calculated for these PNS types. Treatment of S200 and S450 gauzes with hard particles at a velocity of 24–80 m/sec induces plastic deformation of their weft wires, with only a slight decrease in their mean pore sizes. At a particle velocity of 80 m/sec S450 gauze disintegrates.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literature cited

  1. A. A. Gatushkin and S. M. Solonin, “Filtering properties of twin-layered sintered filters,” Poroshk. Metall., No. 7, 32–37 (1966).

    Google Scholar 

  2. G. F. Tikhonov and V. K. Sorokin, “Sintered metallic filter materials for fine purification,” Energomashinostroenie, No. 12, 26–27 (1976).

    Google Scholar 

  3. A. F. Silaev, O. P. Danilova, and S. P. Gromova, “Materials with capillary structures for liquid and gas filtration,” Poroshk. Metall., No. 9, 45–49 (1978).

    Google Scholar 

  4. S. V. Belov, P. A. Kulu, P. K. Kallas, and G. P. Pavlikhin, “Effect of surface erosion on the hydraulic resistance of porous metals,” Poroshk. Metall., No. 9, 19–22 (1980).

    Google Scholar 

  5. P. A. Kulu, O. D. Bussel' and V. S. Pugin, “Erosion resistance of porous permeable iron,” Poroshk. Metall., No. 7, 58–62 (1974).

    Google Scholar 

  6. I. R. Kleis, “TsUK-3M centrifugal accelerator for determining the relative wear resistance of materials during abrasive erosion,” Tr. Tallinsk. Politekh. Inst., Tallin, Ser. A. No. 294, 23–33 (1970).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. N. É. Bauman Moscow Higher Technical College, USSR

    S. V. Belov, A. V. Ksenofontov, P. A. Kulu & P. K. Kallas

  2. Tallin Polytechnic Institute, USSR

    S. V. Belov, A. V. Ksenofontov, P. A. Kulu & P. K. Kallas

Authors
  1. S. V. Belov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. V. Ksenofontov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. A. Kulu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. K. Kallas
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Poroshkovaya Metallurgiya, No. 5(245), pp. 41–47, May, 1983.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Belov, S.V., Ksenofontov, A.V., Kulu, P.A. et al. Effect of surface erosion of porous metals on their structural and hydraulic characteristics. Powder Metall Met Ceram 22, 361–367 (1983). https://doi.org/10.1007/BF00796925

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00796925

Keywords

Search

Navigation