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  4. № 15 2008
  5. P. 83

Features of influencing of microstructure on strength at static and cyclic loading of composition materials

S.Firstov,
 
Y.Lugovskiy
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Electron Microscopy and Strength of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2008, #15
http://www.materials.kiev.ua/article/325

Abstract

It is set, that for the explored poliсristall materials on the basis of copper of dependence of yield limit and fatigue from the size of the D grain in the range of sizes of grains to a 4 - 0,3 mkm proportional parameter of the structure D-1. It is shown, that equation of Hall-Petch can be applied in the indicated range of grains on condition that the coefficient of equation of Hall-Petch submits to the equation КУ =КВ D-1/2.


EQUATION OF HALL-PETCH, LIMIT OF FATIGUE, LIMIT OF YIELD, MICROSTRUCTURE

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