Effects of Metallizing and Brazing Treatments on Static and Cyclic Fatigue of Polycrystalline Alumina
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概要
- 論文の詳細を見る
In order to accurately estimate the reliability of the service life of a pressure-proof connector made of polycrystalline alumina, static and cyclic fatigue of polycrystalline alumina and its brazing part were examined. Static and cyclic fatigue tests and static bending tests under 4-point bending loads were carried out using three types of specimens: A; plates, B;plates with a center hole, and C; plates with a center hole brazed to a Cu pin with Ag-Cu alloy. Fatigue failures of both the A- and B-type specimens were basically controlled by the static fatigue stress-corrosion cracking, but in addition, the effect of cyclic stress on their failures could be recognized from estimating the time to failure under cyclic stress based on the data from static fatigue tests. On the other hand, fatigue failures of the C-type specimens were mainly controlled by cyclic fatigue, such as metal fatigue. This is because the main mechanism of fatigue in the C-type specimens is the initiation of a fatigue crack in the brazing alloy.
- 一般社団法人日本機械学会の論文
- 1989-10-15
著者
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KUNIO Takeshi
Faculty of Engineering, Keio University.
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Kunio Takeshi
Faculty Of Engineering Keio University
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Kunio T
Faculty Of Science And Engineering Keio University
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SUZUKI Hideto
Department of Mechanical Engineering, Oyama National College of Technology
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AYUTA Tokuichi
Daiichi Denshi Kogyo
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OUTA Yukitake
Daiichi Denshi Kogyo
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Suzuki Hideto
Department Of Mechanical Engineering Oyama National College Of Technology
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