巻号一覧
24 巻, 7 号
選択された号の論文の4件中1～4を表示しています
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矢島 聖使1977 年 24 巻 7 号 p. 193-196
発行日: 1977/11/25
公開日: 2009/05/22
ジャーナル フリーPDF形式でダウンロード (2961K) -
樺山 資章1977 年 24 巻 7 号 p. 197-204
発行日: 1977/11/25
公開日: 2009/05/22
ジャーナル フリーPDF形式でダウンロード (7598K) -
岡山 昭, 添野 浩, 安藤 寿1977 年 24 巻 7 号 p. 205-210
発行日: 1977/11/25
公開日: 2009/05/22
ジャーナル フリー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.抄録全体を表示PDF形式でダウンロード (2748K) -
杉田 忠彰, 鈴木 和夫1977 年 24 巻 7 号 p. 211-215
発行日: 1977/11/25
公開日: 2009/12/04
ジャーナル フリー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.抄録全体を表示PDF形式でダウンロード (2738K)
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