Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium

Name: Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium
Author: Sajadifar, Seyed Vahid, Wegener, T., Yapıcı, Güney Güven, Niendorf, T.

İsim	Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium
Yazar	Sajadifar, Seyed Vahid, Wegener, T., Yapıcı, Güney Güven, Niendorf, T.
Basım Tarihi:	2019-12
Basım Yeri	- Elsevier
Konu	Ultra-fine grained titanium, Equal channel angular extrusion/pressing, Very high-cycle fatigue, Severe plastic deformation, Notch sensitivity, Fracture morphology
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0167-8442
Kayıt Numarası	03584407-0d52-43aa-b04a-8e3ccae5cc8f
Lokasyon	Mechanical Engineering
Tarih	2019-12
Notlar	Hessen State Ministry of Higher Education, Research and the Arts - Initiative for the Development of Scientific and Economic Excellence (LOEWE)
Örnek Metin	The very high-cycle fatigue performances of coarse-grained and ultrafine-grained titanium samples with different geometries at ambient temperature and various stress amplitudes were investigated. Severe plastic deformation improves monotonic strength of titanium at the cost of a loss in ductility. Ultrafine-grained titanium demonstrates a superior fatigue performance compared to that of coarse-grained counterparts in the high-cycle fatigue regime, however, suffers notch sensitivity. Furthermore, in the very high-cycle fatigue regime stress-life curves merge unexpectedly. Microstructural inhomogeneity in the ultrafine-grained titanium is expected to be the reason. Analysis of fracture surfaces reveals that the formation of fatigue slip marks is evident on the fatigued samples of both microstructural states. Ultrafine-grained titanium is more prone to the intergranular fracture.
DOI	10.1016/j.tafmec.2019.102362
Cilt	104

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Effect of grain size on the very high cycle fatigue behavior and notch sensitivity of titanium

Yazar Sajadifar, Seyed Vahid, Wegener, T., Yapıcı, Güney Güven, Niendorf, T.

Basım Tarihi 2019-12

Basım Yeri - Elsevier

Konu Ultra-fine grained titanium, Equal channel angular extrusion/pressing, Very high-cycle fatigue, Severe plastic deformation, Notch sensitivity, Fracture morphology

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0167-8442

Kayıt Numarası 03584407-0d52-43aa-b04a-8e3ccae5cc8f

Lokasyon Mechanical Engineering

Tarih 2019-12

Notlar Hessen State Ministry of Higher Education, Research and the Arts - Initiative for the Development of Scientific and Economic Excellence (LOEWE)

Örnek Metin The very high-cycle fatigue performances of coarse-grained and ultrafine-grained titanium samples with different geometries at ambient temperature and various stress amplitudes were investigated. Severe plastic deformation improves monotonic strength of titanium at the cost of a loss in ductility. Ultrafine-grained titanium demonstrates a superior fatigue performance compared to that of coarse-grained counterparts in the high-cycle fatigue regime, however, suffers notch sensitivity. Furthermore, in the very high-cycle fatigue regime stress-life curves merge unexpectedly. Microstructural inhomogeneity in the ultrafine-grained titanium is expected to be the reason. Analysis of fracture surfaces reveals that the formation of fatigue slip marks is evident on the fatigued samples of both microstructural states. Ultrafine-grained titanium is more prone to the intergranular fracture.

DOI 10.1016/j.tafmec.2019.102362

Cilt 104