Journal of the Japan Society of Powder and Powder Metallurgy
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
Search
Advanced search
OR
Browse
Search
Volume 24, Issue 7
Displaying 1-4 of 4 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • [title in Japanese]
    [in Japanese]
    1977Volume 24Issue 7 Pages 193-196
    Published: November 25, 1977
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.2497/jjspm.24.193
    JOURNAL OPEN ACCESS
    Download PDF (2961K)
  • [title in Japanese]
    [in Japanese]
    1977Volume 24Issue 7 Pages 197-204
    Published: November 25, 1977
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.2497/jjspm.24.197
    JOURNAL OPEN ACCESS
    Download PDF (7598K)
  • Effects of Atomizing Variables on Oxygen Contents of Steel Powders
    Akira Okayama, Kô Soeno, Hisashi Andô
    1977Volume 24Issue 7 Pages 205-210
    Published: November 25, 1977
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.2497/jjspm.24.205
    JOURNAL OPEN ACCESS
    Show abstractHide abstract
    Steel powders, JIS SCM3 and SKH9, have been made by water and argon atomizations followed by water cooling. Oxygen contents of steel powders have been investigated as a function of atomizing variable.
    Increasing the cooling velocity of powders is considerably effective to decrease oxygen contents of pow-ders. In water atomization, it is considerably effective for decreasing oxygen contents of powders to construct a pipe for conducting the mixture of water and molten droplets underneath the atomizing nozzle. In argon atomization, the cooling velocity of powders is increased by increasing the pressure of argon and by decreasing the distance from the end of the argon nozzle to cooling water.
    View full abstract
    Download PDF (2748K)
  • Interfacial Reaction in the Wear of MgO Single Crystals on Steel Disk
    Tadaaki Sugita, Kazuo Suzuki
    1977Volume 24Issue 7 Pages 211-215
    Published: November 25, 1977
    Released on J-STAGE: December 04, 2009
    DOIhttps://doi.org/10.2497/jjspm.24.211
    JOURNAL OPEN ACCESS
    Show abstractHide abstract
    Chemical reaction in the wear of MgO single crystals on steel was studied. When MgO single crystals were worn on the steel (S15C) disk at the sliding speed of 50 m/s and at the contact load of 200 g, an element and a state analysis of surface layers produced on the wear surface were carried out using the electron probe X-ray micro analyser.
    Oxidation of iron and diffusion of Fe into MgO single crystals were confirmed. The results of state analysis indicated that the oxide of iron was FeO and there was a diffusion process in MgO-FeO system in the wear interface. The interfacial material detected on the wear surface was magnesio-wustite. This wear may be also explained by a mechanism in which the surface layer was delaminated by fatigue caused after many cycles of repeated loading.
    View full abstract
    Download PDF (2738K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top