超声振动载荷下合金的疲劳寿命性能研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (11): 1386-1389.

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STUDY ON THEFATIGUELIFE BEHAVIORS OF ALLOYS UNDER ULTRASONIC FATIGUELOADING

Ni Jingang¹, C. Bathias²

1. Faculty 405,Beijing University of Aeronautics and Astronautics,Bebing,100083;2. CNAM,Labo. de Metallurgie,292 Rue St.Martin,75 l41 Paris,Franee

Received:1993-06-20 Revised:1993-12-25 Online:1994-11-25 Published:1994-11-25

Abstract

Abstract: The fatigue life behavior of three widely used engineering alloys(Udimet 500,l7-4 PH and Ti-6Al-4V)under ultrasonic fatigue loading are studied(f=20kHz,R=-1).It is shown from experimental and analytical results that fatigue life characteristics of materials at ultrasonic fatigue frequency depend mainly upon the dynamic vibration features and the mechan-ical responses of materials and the different exciting regimes,

Key words: ultrasonic fatigue, damage, strain rate, frequency effect

CLC Number:

Ni Jingang;C. Bathias. STUDY ON THEFATIGUELIFE BEHAVIORS OF ALLOYS UNDER ULTRASONIC FATIGUELOADING[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(11): 1386-1389.

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STUDY ON THEFATIGUELIFE BEHAVIORS OF ALLOYS UNDER ULTRASONIC FATIGUELOADING

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