EFFECT OF SURFACE STRESS CONCENTRATORS AND MICROSTRUCTURE ON THE FATIGUE LIMIT OF THE MATERIAL

被引：3
作者：
Herasymchuk, O. M. [1 ]
Kononuchenko, O. V. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Pisarenko Inst Problems Strength, Kiev, Ukraine
来源：
STRENGTH OF MATERIALS | 2011年 / 43卷 / 04期
关键词：
fatigue; fatigue limit; titanium alloys; condensate; microstructure; technological defects;
D O I：
10.1007/s11223-011-9306-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A calculation model is developed that makes it possible to predict the fatigue limit sigma(-1) of specimens with technological surface defects based on the data on the material microstructure and stress concentrator geometry. The fatigue test results are presented for specimens with technological defects under symmetric lateral bending that are made of Ti-6Al-4V titanium alloy condensate produced by the electron-beam physical vapor deposition method. The results obtained are used to calculate sigma(-1) based on the developed model and are in very good agreement with the experimental data.
引用
收藏
页码：374 / 383
页数：10
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