SYSTEMATIZATION OF THE APPROACHES TO IMPROVE THE FATIGUE LIFE OT METAL STRUCTURAL COMPONENTS WITH HOLES PART II: MICRO-APPROACH

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  • TITLE: SYSTEMATIZATION OF THE APPROACHES TO IMPROVE THE FATIGUE LIFE OT METAL STRUCTURAL COMPONENTS WITH HOLES PART II: MICRO-APPROACH
  • AUTHOR(S): G. V. Duncheva
  • ABSTRACT: In this part of the study the idea for processing through plastic deformation in order to modify the microstructure is grounded as one of the basic approaches to increase the fatigue life of the metal structural components. Up-to-date techniques, the effect of which is expressed in grains refining, have been analyzed. A primary attention is dedicated to the Friction Stir Processing (FSP) technique and the phenomena “sticking friction” which is relevant to this technique. It was concluded that FSP technique has a greatest potential in treatment of holes in order to improve the fatigue life of the metal structural components.
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