Fatigue-Crack Propagation in Heat-Resistant Alloys under Thermomechanical Loading. Part 2. A Method of Accounting for the Influence of Thermomechanical Loading on the Material Resistance to Fatigue-Crack Growth.

Autor:	Troshchenko, V., Gryaznov, B., Kononuchenko, O.
Zdroj:	Strength of Materials; Nov2000, Vol. 32 Issue 6, p497-501, 5p
Abstrakt:	A method is proposed for a comprehensive consideration of the influence of thermomechanical-loading components on the variation of the fatigue-crack propagation rate. The method takes into account the variability of the values of the calculated stress intensity factors over the crack front and with the time of a thermal cycle. Experimental results obtained for alloys KhN70VMTYu (Eacute;I617) and KhN73MBTYu (Eacute;I698) are described. For two regimes of thermal cycling, near-threshold and medium sections of kinetic diagrams of fracture of these alloys are constructed. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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