Effect of friction stir processing on the fatigue performance of AZ31 magnesium alloy

Name: Effect of friction stir processing on the fatigue performance of AZ31 magnesium alloy
Author: Yapıcı, Güney Güven, Sajadifar, S. V., Ghobadlou, Ali Hosseinzadeh, Wegener, T., Sobrero, C., Engelhardt, A., Niendorf, T.

İsim	Effect of friction stir processing on the fatigue performance of AZ31 magnesium alloy
Yazar	Yapıcı, Güney Güven, Sajadifar, S. V., Ghobadlou, Ali Hosseinzadeh, Wegener, T., Sobrero, C., Engelhardt, A., Niendorf, T.
Basım Tarihi:	2023-05
Basım Yeri	- Wiley
Konu	AZ31 magnesium alloys, Fracture mechanical behavior, Friction stir processing, Microstructure, Very high-cycle fatigue
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1438-1656
Kayıt Numarası	65071d91-b082-4323-a016-04af01bd0c43
Lokasyon	Mechanical Engineering
Tarih	2023-05
Notlar	BAGEP Award of the Science Academy, Turkey ; Hessen State Ministry for Higher Education, Research and the Arts, Germany
Örnek Metin	Herein, the cyclic mechanical behavior of AZ31 magnesium alloy after multipass friction stir processing (FSP) is investigated up to the very high-cycle fatigue (VHCF) regime. The grain refinement and texture evolution after processing are evaluated to enhance the understanding of the fatigue response. Although ultimate tensile strength and ductility of the friction stir processed AZ31 increase up to about 320 MPa and 25%, respectively, the fatigue performance deteriorates in comparison with that of the as-received condition due to the low yield strength and texture evolution after processing. Furthermore, analysis of fracture surfaces of the samples after cyclic loading reveals that the as-received AZ31 is more prone to brittle fracture with multiple-origin fatigue failure even at low stress amplitudes. On the contrary, the dominant failure mechanisms of the friction stir processed samples are initiation and propagation of cracks originating from the surface, porosities, and grain size inhomogeneity. Nevertheless, the capability of FSP for providing superior crack initiation resistance in the VHCF regime is demonstrated as a significant contribution. Based on a detailed study of prevalent microstructural features, processing–property–damage relationships are established indicating the major effect of FSP on the final performance of the AZ31 magnesium alloy.
DOI	10.1002/adem.202201638
Cilt	25

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Effect of friction stir processing on the fatigue performance of AZ31 magnesium alloy

Yazar Yapıcı, Güney Güven, Sajadifar, S. V., Ghobadlou, Ali Hosseinzadeh, Wegener, T., Sobrero, C., Engelhardt, A., Niendorf, T.

Basım Tarihi 2023-05

Basım Yeri - Wiley

Konu AZ31 magnesium alloys, Fracture mechanical behavior, Friction stir processing, Microstructure, Very high-cycle fatigue

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1438-1656

Kayıt Numarası 65071d91-b082-4323-a016-04af01bd0c43

Lokasyon Mechanical Engineering

Tarih 2023-05

Notlar BAGEP Award of the Science Academy, Turkey ; Hessen State Ministry for Higher Education, Research and the Arts, Germany

Örnek Metin Herein, the cyclic mechanical behavior of AZ31 magnesium alloy after multipass friction stir processing (FSP) is investigated up to the very high-cycle fatigue (VHCF) regime. The grain refinement and texture evolution after processing are evaluated to enhance the understanding of the fatigue response. Although ultimate tensile strength and ductility of the friction stir processed AZ31 increase up to about 320 MPa and 25%, respectively, the fatigue performance deteriorates in comparison with that of the as-received condition due to the low yield strength and texture evolution after processing. Furthermore, analysis of fracture surfaces of the samples after cyclic loading reveals that the as-received AZ31 is more prone to brittle fracture with multiple-origin fatigue failure even at low stress amplitudes. On the contrary, the dominant failure mechanisms of the friction stir processed samples are initiation and propagation of cracks originating from the surface, porosities, and grain size inhomogeneity. Nevertheless, the capability of FSP for providing superior crack initiation resistance in the VHCF regime is demonstrated as a significant contribution. Based on a detailed study of prevalent microstructural features, processing–property–damage relationships are established indicating the major effect of FSP on the final performance of the AZ31 magnesium alloy.

DOI 10.1002/adem.202201638

Cilt 25