Author(s)

V.A. Boguslayev, I.E. Kovalev, P.P. Banas & A.E. Kovalev

Abstract

On effects produced by residual stresses and deformed surface properties on the fatigue strength of components, hardened by surface plastic deformation V.A. Boguslayev*, I.E. Kovalev*, P.P. Banas*, A.E. Kovalev* "Zaporozhye 'MotorSich'Enterprise, 15 8thMarch St., Zaporozhye-64, Ukraine * Moscow K.E. Tsiolkovsky Aviation Technology University, 27 Petrovka, Moscow K-31, Russia ABSTRACT The combined effect of two factors upon the fatigue resistance of Ti-alloys after surface plastic defo- rmation is studied: - imparted surface resiual stresses; - changed fatigue resistance of the deformed surfa- ce layer as compared to undeformed core material. INTRODUCTION Presently fatigue strength by different methods of surface hardening (e.g.balls and rollers burnishing shot peening, vibrotumbling, etc.) is the most eff- ective tool of modern equipment service life and reliability improvement. It is generally accepted, that the main factor, defining the positive effect of su

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