The effect of mixed mode I/III loading on the fracture toughness of Timetal 834 titanium alloy

The effect of mixed mode I/III loading on the fracture toughness of Timetal 834 titanium alloy

The effect of mixed mode I/III loading on the fracture toughness of Timetal 834 titanium alloy plate was investigated. The fracture toughness of Timetal 834 alloy was found to remain more or less unchanged initially and subsequently increase with increasing mixed mode I/III loading. Formation of qua...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-03, Vol.476 (1), p.162-168
Hauptverfasser: Chandra Rao, B.S.S., Srinivas, M., Kamat, S.V.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Elasticity. Plasticity
Exact sciences and technology
Fractures
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Mixed mode I/III fracture toughness
Primary alpha
Timetal 834 titanium alloy
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Zusammenfassung:The effect of mixed mode I/III loading on the fracture toughness of Timetal 834 titanium alloy plate was investigated. The fracture toughness of Timetal 834 alloy was found to remain more or less unchanged initially and subsequently increase with increasing mixed mode I/III loading. Formation of quasi-cleavage facets at primary α grains was found to be the most important step in the fracture process. This coupled with the nature of the stress field ahead of the crack tip under mixed mode I/III loading was then used to explain fracture toughness behaviour with increasing mixed mode I/III loading in Timetal 834 titanium alloy.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2007.05.059