金属粉末の静水圧下圧密構成式の検討  [in Japanese] Constitutive Equation for Cold Isostatic Compaction of Metal Powders  [in Japanese]

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Author(s)

Abstract

For application of “particle contact theory” proposed by several investigators for compaction using mono-sized spherical powder particles to that for powders of general shape and of general size distribution, metallographical method was carried out to obtain the constitutive equation for isostatic compaction of metallic powders. Comparing the obtained equation with experimental results, the approximated constitutive equation to represent the isostatic pressure, <I>P</I>, to densify powder aggregate from the initial relative density, <I>D</I><SUB>0</SUB>, to the achieved relative density, <I>D</I>, is finally conducted as<BR>(This article is not displayable. Please see full text pdf.) <BR>\oindentwhere σ<SUB>eq</SUB> is equivalent stress at the contact surface having the value close to 0.2% proof yield stress of powder material. By mixing a lubricant in powder aggregate, the isostatic pressure to obtain the same relative density is smaller compared with that represented by the above equation.

Journal

  • Journal of the Japan Institute of Metals and Materials

    Journal of the Japan Institute of Metals and Materials 66(4), 393-399, 2002-04-20

    The Japan Institute of Metals and Materials

References:  20

Codes

  • NII Article ID (NAID)
    10008832813
  • NII NACSIS-CAT ID (NCID)
    AN00062446
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    00214876
  • NDL Article ID
    6151706
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-314
  • Data Source
    CJP  NDL  J-STAGE 
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