Ductility and formability of ultrafine-grained 5754 aluminium alloy under various strain rates and temperatures

Ciemiorek, Marta; Ambroziak, Agata; Majchrowicz, Kamil; Lewandowska, M.; Goliński, J.

doi:10.1016/j.msea.2022.143375

Cited by 9 publications

(2 citation statements)

References 29 publications

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“…Jang vd. [ Al-Mg alaşımlarından biri olan Al 5754 alaşımı sahip olduğu yüksek mukavemet, yüksek süneklik, düşük yoğunluk ve iyi kaynak edilebilirlik özelliklerinden dolayı otomotiv endüstrisi başta olmak üzere birçok alanda yaygın olarak kullanılmaktadır [10], [11]. Al 5754 alaşımının oda sıcaklığındaki şekillendirilebilirliği çelik saclara göre düşüktür.…”

Section: Investigation Of Al 5754 Alloy In Warm Processing Conditions...unclassified

Investigation of Al 5754 Alloy in Warm Processing Conditions in Terms of Deep Drawability and Sheet Thickness Variation by Finite Element Method

ÇETİN

2023

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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Alüminyum alaşımlarının şekillendirilebilirliği için ılık işlem koşulları büyük önem arz etmektedir. Yeniden kristalleşme altı sıcaklıklarda mikro yapıda değişim olmadan şekillendirilebilirlik arttırılabilmektedir. Bu çalışmada, Al 5754-O alaşımının ılık sıcaklıklarda şekillendirilmesine etki eden sıcaklık, işlem parametresi olarak kullanılarak makro derin çekme işlemi sonlu elemanlar yöntemi kullanılarak sayısal olarak incelenmiştir. AA5754-O alaşımının derin çekile bilirliği 25°C’de tutulan zımba ile, 225 °C, 250 °C, 275°C ve 300°C’de kadar ısıtılmış kalıp koşullarında sac kalınlığı değişimi parametresi yoluyla araştırılmıştır. Analizlerde sıcaklık dağılımı, şekillendirme hızı ve baskı levhası basıncı parametrelerinin kap incelmesi üzerine etkisi analiz edilmiştir. Yapılan analizler değerlendirilirken kusursuz derin kap çekile bilirliğini sağlayan parametreler incelenmiş ve şekillendirme hızı ve baskı levhası basıncı parametrelerinin şekillendirilebilirliğe etkileri analiz edilmiştir.

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Section: Investigation Of Al 5754 Alloy In Warm Processing Conditions...unclassified

Investigation of Al 5754 Alloy in Warm Processing Conditions in Terms of Deep Drawability and Sheet Thickness Variation by Finite Element Method

ÇETİN

2023

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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“…Weight reduction is an increasingly important point of improvement in all industries, and this reduction is closely linked to a reduction in the thickness of the parts. Among various non-heat treatable aluminium alloys, the 5754 H111 Aluminium-Magnesium (Al-Mg) alloy has good weldability properties, excellent resistance to corrosion in marine environments and is easily machined (1).…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of Handheld Laser Welding Technology for Small Thickness Aluminium Alloys

Berrizbeitia,

Galnares,

Egurtza

et al. 2023

KEM

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Handheld laser welding with filler material is an interesting alternative for TIG and MIG/MAG welding in aesthetic parts of small thicknesses, due to its high versatility, speed of application, low deformability and aesthetic finish. The novelty of this study lies in the analysis of the feasibility of this process for welding aluminium alloys of low thickness (2mm), commonly welded by GTAW or GMAW processes. Due to its high sensitivity to heat, laser welding of aluminium alloys is always accompanied by defects such as porosity and cracks. In this work aluminium-magnesium alloy sheets (5754 H111) were joined using fillet weld, butt weld and cornice weld configurations. The appearance, microstructure, porosity and mechanical properties were analyzed through non-destructive and destructive tests. The results of the external aspect of the samples showed a very low distortion and deformation of the material; however, the macrographic analysis showed abundant internal porosity. In the case of the fillet and cornice welding this porosity was within the applicable standard, and in the case of the butt-welded samples, tensile tests results proved the validity of the process.

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Digital Image Correlation Analysis of Uniform Deformation and Necking in Solid‐State Welded Nanocrystalline Aluminum via High‐Pressure Torsion

Bhatta,

Lee,

Figueiredo

et al. 2024

Adv Eng Mater

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Solid‐state welding of Al 1043 sheets was achieved via high‐pressure torsion (HPT) processing to produce bulk nanostructured Al disks. A homogeneous nanostructure without segregation was observed, with grain sizes of ∽430‐470 nm. Miniature tensile testing, coupled with the digital image correlation (DIC) technique, was employed to determine the room‐temperature tensile deformation behavior, particularly the non‐uniform behavior with necking, of the HPT‐bonded ultrafine‐grained (UFG) aluminum, comparing it with annealed coarse‐grained counterpart. The HPT‐bonded UFG Al exhibited a large fraction of post‐necking strain, which is supported by the estimated high strain rate sensitivity value of m = 0.085, suggesting the delay of local necking leading to tensile fracture. Detailed DIC analysis revealed prolonged diffuse necking, thus delaying local necking, in the HPT‐bonded UFG Al, while the annealed samples show high fractions of local necking during the non‐uniform deformation. Moreover, the DIC data illustrated that local necking predominantly occurred at a limited neck zone, maintaining a plateau strain distribution at the out‐of‐neck zone throughout necking deformation towards tensile failure for both annealed and UFG aluminum. The DIC method offers an alternative means to demonstrate the transition in necking behaviors of materials by estimating the plastic lateral contraction exponent.This article is protected by copyright. All rights reserved.

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Ductility and formability of ultrafine-grained 5754 aluminium alloy under various strain rates and temperatures

Cited by 9 publications

References 29 publications

Investigation of Al 5754 Alloy in Warm Processing Conditions in Terms of Deep Drawability and Sheet Thickness Variation by Finite Element Method

Investigation of Al 5754 Alloy in Warm Processing Conditions in Terms of Deep Drawability and Sheet Thickness Variation by Finite Element Method

Feasibility Study of Handheld Laser Welding Technology for Small Thickness Aluminium Alloys

Digital Image Correlation Analysis of Uniform Deformation and Necking in Solid‐State Welded Nanocrystalline Aluminum via High‐Pressure Torsion

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