Fatigue strength of ultrafine-grained pure Ti after severe plastic deformation

Fatigue life and notch sensitivity of the ultrafine-grained pure Ti produced by equal channel angular pressing (ECAP) was investigated. The ECAPed Ti showed a significant improvement in its high cycle fatigue limit (by a factor of 1.67) but its notch sensitivity was increased.

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Bibliographische Detailangaben
Veröffentlicht in:	Scripta materialia 2006-05, Vol.54 (10), p.1745-1750
Hauptverfasser:	Kim, Woo-Jin, Hyun, Chang-Young, Kim, Ho-Kyung
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Equal channel angular pressing Exact sciences and technology Fatigue Fatigue life Fatigue limit Fatigue notch sensitivity Fatigue strength High cycle fatigue Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Notch sensitivity Plastic deformation Pure Ti Titanium Ultrafine grained microstructures
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Beschreibung
Zusammenfassung:	Fatigue life and notch sensitivity of the ultrafine-grained pure Ti produced by equal channel angular pressing (ECAP) was investigated. The ECAPed Ti showed a significant improvement in its high cycle fatigue limit (by a factor of 1.67) but its notch sensitivity was increased.
ISSN:	1359-6462 0956-716X 1872-8456
DOI:	10.1016/j.scriptamat.2006.01.042