605 Fretting Fatigue Characteristics and Microstructure of Ti-4.5Al-3V-2Mo-2Fe for Aircraft Applications
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概要
- 論文の詳細を見る
Ti-4.5Al-3V-2Mo-2Fe, which is an α+β type titanium alloy with excellent superplastic characteristics, has been developed for aircraft structural applications. In the case of using as aircraft materials, the fretting fatigue fracture, which is caused by the combination of cyclic fatigue stress and fretting, is highly expected. Microstructure of Ti-4.5Fe-3V-2Mo-2Fe is variously changed by heat treatments. Therefore, the effects of microstructures on fretting fatigue characteristics of the alloy conducted with various annealing treatments in α+β field were investigated in this study. The fretting fatigue limit of the alloy tends to increase with decreasing area fraction and average diameter of primary α phase. However, when area fraction and average diameter of primary α phase are below certain values, the fretting fatigue limit is lowered by coarsening of acicular α phases, which precipitate in β phase region.
- 一般社団法人日本機械学会の論文
著者
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NIINOMI Mitsuo
Department of Production Systems Engineering, Toyohashi University of Technology
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AKAHORI Toshikazu
Department of Production Systems Engineering, Toyohashi University of Technology
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Takeda Junji
Department Of Production Systems Engineering Toyohashi University Of Technology
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Takeda Junji
Toyohashi University of Technology
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Niinomi Mitsuo
Department Of Biomaterials Science Institute For Materials Research Tohoku University
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- PREFACE
- Biologically and Mechanically Biocompatible Titanium Alloys
- Effect of molecular weight on fatigue characteristics of ultra-high molecular weight polyethylene for implant material
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- Metallic biomaterials
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- Toughness and Strength of Microstructurally Controlled Titanium Alloys.