2027 マルエージング鋼の回転曲げ荷重下におけるギガサイクル疲労特性に関する研究(S11-1 高強度鋼・高硬度鋼の超高サイクル疲労,S11 金属材料の超高サイクル疲労特性の解明)

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  • 2027 A Study on Gigacycle Fatigue Property of Maraging Steels in Rotating Bending

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Maraging steel is one of typical high strength steels used for light-weight mechanical structures due to the significant high strength higher than 2000MPa. After solution treatment, an appropriate aging treatment was applied to this steel to provide the designed strength level. From this point of view, a number of specimens in the hourglass type were prepared and half of them were solution-treated, and remaining half were aged after solution treatment. Thus, ultra-long life fatigue properties for both kinds of specimens were examined in rotating bending, and very high cycle fatigue behaviors of both steels were compared with each other.

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