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首页> 美国政府科技报告 >Fretting Tests of Titanium Alloy Ti-6Al-4V with Shot-Peened and Solid Lubricant Coated Surfaces
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Fretting Tests of Titanium Alloy Ti-6Al-4V with Shot-Peened and Solid Lubricant Coated Surfaces

机译：喷丸强化和固体润滑涂层表面钛合金Ti-6al-4V的微动测试

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Specimens of Ti-6Al-4V titanium alloy were fatigue tested under fretting conditions. Two groups of specimens were tested, one containing shot-peened specimens and the other containing specimens that were shot-peened and coated with the solid lubricant PWA 474. Rotary bending fatigue tests were performed. Under fretting conditions, the fatigue limit for shot-peened specimens was 235 N/sq mm, while the corresponding value for shot-peened and solid lubricant coated specimen was 480 N/sq mm. The fatigue limit for the latter group of specimens approaches that of material unaffected by fretting. It is shown that shot-peening combined with solid lubricant coating drastically improves the fatigue strength of the material under the fretting conditions used in this investigation.

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