Effect of external stress on the post-aging mechanical properties of rolled magnesium alloys

Name: Effect of external stress on the post-aging mechanical properties of rolled magnesium alloys
Author: Mısırlı, Mustafa, Ghobadlou, Alı Hosseınzadeh, Yapıcı, Güney Güven

İsim	Effect of external stress on the post-aging mechanical properties of rolled magnesium alloys
Yazar	Mısırlı, Mustafa, Ghobadlou, Alı Hosseınzadeh, Yapıcı, Güney Güven
Basım Tarihi:	2020
Basım Yeri	- TANGER Ltd.
Konu	Aging, Magnesium, Mechanical behavior, Microstructural evolution, Rolling, Thermo-mechanical
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-808729497-0
Kayıt Numarası	aa028485-84cf-49c8-8677-baf3bc24fe8e
Lokasyon	Mechanical Engineering
Tarih	2020
Örnek Metin	In the current study the effects of conventional aging and stress aging on the microstructure and mechanical behavior of warm rolled AZ31 magnesium alloy were investigated. Tensile experiments revealed that the ultimate tensile strength (UTS) of the as-received AZ31 increased up to 300 MPa after 24 h aging at 120 °C, with a 2 % reduction in ductility. Moreover, yield strength of the rolled and stress aged sample at 120 °C under an external stress of 50 MPa and only for 1 h was improved to 240 MPa. Microstructural observations demonstrate that the grain growth firstly reduced the strength of rolled condition while improving the strain at failure. This was followed by the nucleation of recrystallized grains, enhancing the UTS with acceptable ductility. In addition, fracture surface analysis of stress aged samples demonstrated nucleation-controlled fracture mechanisms with deeper void structures as a ductile characteristic.
DOI	10.37904/metal.2020.3590

Kaynağa git Özyeğin Üniversitesi

Aramaya Dön

Özyeğin Üniversitesi

Kaynağa git

Effect of external stress on the post-aging mechanical properties of rolled magnesium alloys

Yazar Mısırlı, Mustafa, Ghobadlou, Alı Hosseınzadeh, Yapıcı, Güney Güven

Basım Tarihi 2020

Basım Yeri - TANGER Ltd.

Konu Aging, Magnesium, Mechanical behavior, Microstructural evolution, Rolling, Thermo-mechanical

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-808729497-0

Kayıt Numarası aa028485-84cf-49c8-8677-baf3bc24fe8e

Lokasyon Mechanical Engineering

Tarih 2020

Örnek Metin In the current study the effects of conventional aging and stress aging on the microstructure and mechanical behavior of warm rolled AZ31 magnesium alloy were investigated. Tensile experiments revealed that the ultimate tensile strength (UTS) of the as-received AZ31 increased up to 300 MPa after 24 h aging at 120 °C, with a 2 % reduction in ductility. Moreover, yield strength of the rolled and stress aged sample at 120 °C under an external stress of 50 MPa and only for 1 h was improved to 240 MPa. Microstructural observations demonstrate that the grain growth firstly reduced the strength of rolled condition while improving the strain at failure. This was followed by the nucleation of recrystallized grains, enhancing the UTS with acceptable ductility. In addition, fracture surface analysis of stress aged samples demonstrated nucleation-controlled fracture mechanisms with deeper void structures as a ductile characteristic.

DOI 10.37904/metal.2020.3590