| タイトル | Study of fretting wear in titanium, Monel-400, and cobalt-25 percent molybdenum using scanning electron microscopy. |
| 著者（英） | Bill, R. C. |
| 発行日 | 1973-04-01 |
| 言語 | eng |
| 内容記述 | Damage scar volume measurements taken from like metal fretting pairs, combined with scanning electron microscopy observations, showed that three sequentially operating mechanisms result in the fretting of titanium, Monel-400, and cobalt-25% molybdenum. Initially, adhesion and plastic deformation on the surface played an important role. This was followed after a few hundred cycles by a fatigue mechanism, producing spall-like pits in the damage scar. Finally, an oxidation-related mechanism became most significant. Damage scar measurements made on several elemental metals after 600,000 fretting cycles suggested that the ratio of oxide hardness to metal hardness was a measure of the susceptibility of a metal to progressive damage by fretting. |
| NASA分類 | MATERIALS, METALLIC |
| レポートNO | 73A34993
ASLE PREPRINT 73AM-8A-3 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/456943 |
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