On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy

Name: On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy
Author: Yapıcı, Güney Güven, Bajilane, Isam Jabbar Ibrahim

İsim	On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy
Yazar	Yapıcı, Güney Güven, Bajilane, Isam Jabbar Ibrahim
Basım Tarihi:	2021-03
Basım Yeri	- Elsevier
Konu	Friction stir spot welding, Dissimilar joint, Keyhole, Aluminum, Fatigue, Fracture
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2238-7854
Kayıt Numarası	f9485c35-e07e-4c69-b706-c58db444d692
Lokasyon	Mechanical Engineering
Tarih	2021-03
Notlar	Ozyegin University
Örnek Metin	The target of this research study was to evaluate the shear-tensile and fatigue behavior of aluminum 6061 alloy welds, in two different heat treatment conditions, joined by the recently developed intermediate layer friction stir spot welding (FSSW) technique. The keyhole, which is the disadvantage of the conventional FSSW process, was avoided using an additional intermediate layer (IL) accompanied by a simple tooling. Shear-tensile experiments demonstrated acceptable mechanical performance of IL-FSSW joints in comparison with that obtained using alternative methods. Fatigue behavior of the joints revealed a dependency to pre-processing temper especially at high cyclic load levels with improved life for the aged condition. Observations on the failure regions under shear-tensile experiments exhibited plug type and shear-plug type fracture modes for the aged and annealed conditions, respectively. In contrast, the fracture mode showed variation with respect to the load level but not to the type of temper during cyclic loading.
DOI	10.1016/j.jmrt.2021.01.006
Cilt	11

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On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy

Yazar Yapıcı, Güney Güven, Bajilane, Isam Jabbar Ibrahim

Basım Tarihi 2021-03

Basım Yeri - Elsevier

Konu Friction stir spot welding, Dissimilar joint, Keyhole, Aluminum, Fatigue, Fracture

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2238-7854

Kayıt Numarası f9485c35-e07e-4c69-b706-c58db444d692

Lokasyon Mechanical Engineering

Tarih 2021-03

Notlar Ozyegin University

Örnek Metin The target of this research study was to evaluate the shear-tensile and fatigue behavior of aluminum 6061 alloy welds, in two different heat treatment conditions, joined by the recently developed intermediate layer friction stir spot welding (FSSW) technique. The keyhole, which is the disadvantage of the conventional FSSW process, was avoided using an additional intermediate layer (IL) accompanied by a simple tooling. Shear-tensile experiments demonstrated acceptable mechanical performance of IL-FSSW joints in comparison with that obtained using alternative methods. Fatigue behavior of the joints revealed a dependency to pre-processing temper especially at high cyclic load levels with improved life for the aged condition. Observations on the failure regions under shear-tensile experiments exhibited plug type and shear-plug type fracture modes for the aged and annealed conditions, respectively. In contrast, the fracture mode showed variation with respect to the load level but not to the type of temper during cyclic loading.

DOI 10.1016/j.jmrt.2021.01.006

Cilt 11