Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains

Name: Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains
Author: Salahi, Salar, Yapıcı, Güney Güven

İsim	Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains
Yazar	Salahi, Salar, Yapıcı, Güney Güven
Basım Tarihi:	2015
Basım Yeri	- Elsevier
Konu	Friction stir welding, Pure copper, Low cycle fatigue, Cyclic response
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2211-8128
Kayıt Numarası	dcab5b95-6eac-4a29-8d2f-63faa7c4d141
Lokasyon	Mechanical Engineering
Tarih	2015
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	In order to determine the long term durability of friction stir welded joints with ultra-fine grained microstructure, investigation of the mechanical response with specific emphasis on fatigue behaviour is critical. In this paper, fatigue behavior of friction stir welded joints of pure copper in low cycle; strain-controlled regime was investigated. Microstructural characterizations indicated the formation of recrystallized ultrafine-grained microstructure in the nugget zone (NZ) after friction stir welding. Fatigue properties were specified at a strain ratio of 0.1 with total strain amplitudes of 0.01, 0.1, and 0.2%. The results attained from the experiments demonstrated cyclic hardening effect at high strain amplitudes, while softening was observed in low strain amplitude of 0.01%. The hysteresis loops indicated the concavity along with the small portion of linear behavior after the reversal point. Localized deformation in the form of shear bands along with equiaxed cells and noticeable misorientation were observed on the fracture surface.
Cilt	11

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Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains

Yazar Salahi, Salar, Yapıcı, Güney Güven

Basım Tarihi 2015

Basım Yeri - Elsevier

Konu Friction stir welding, Pure copper, Low cycle fatigue, Cyclic response

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2211-8128

Kayıt Numarası dcab5b95-6eac-4a29-8d2f-63faa7c4d141

Lokasyon Mechanical Engineering

Tarih 2015

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin In order to determine the long term durability of friction stir welded joints with ultra-fine grained microstructure, investigation of the mechanical response with specific emphasis on fatigue behaviour is critical. In this paper, fatigue behavior of friction stir welded joints of pure copper in low cycle; strain-controlled regime was investigated. Microstructural characterizations indicated the formation of recrystallized ultrafine-grained microstructure in the nugget zone (NZ) after friction stir welding. Fatigue properties were specified at a strain ratio of 0.1 with total strain amplitudes of 0.01, 0.1, and 0.2%. The results attained from the experiments demonstrated cyclic hardening effect at high strain amplitudes, while softening was observed in low strain amplitude of 0.01%. The hysteresis loops indicated the concavity along with the small portion of linear behavior after the reversal point. Localized deformation in the form of shear bands along with equiaxed cells and noticeable misorientation were observed on the fracture surface.

Cilt 11