Evolution of microstructure and texture for an Al-0.4 Er alloy during accumulative roll bonding

Lu, Shaokang; Yin, Dong; Zhao, Yingchao; Liu, Chao; Zhao, Ming-Chun; Yu, Zhaoju; Wang, Hua; Atrens, Andrej

doi:10.1016/j.jallcom.2019.152005

Cited by 16 publications

(3 citation statements)

References 42 publications

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“…Trace alloying elements are inevitable in industrial-grade pure aluminum ingots [20], whose total trace-element content varies from 100 to 400 parts-per-million (ppm). In order to eliminate the potential negative influence of trace alloying elements on the conductivity of Al cables, an attempt is made to convert these trace elements to borides by adding Al-boron (Al-B) ingots into the AA1XXX or AA6XXX molten metal before casting [21][22][23][24][25][26]. However, the morphology and distribution of borides in Al-Si alloys, and their influence on conductivity of Al-Si alloy are not yet very clear.…”

Section: Introductionmentioning

confidence: 99%

Influence of Si, Cu, B, and Trace Alloying Elements on the Conductivity of the Al-Si-Cu Alloy

Yang

et al. 2022

Materials

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The influence of Si, Cu, B, and trace alloying elements on the conductivity of aluminum die cast 12 (ADC12) alloy was investigated. The conductivity decreased linearly with increasing volume fraction of the Si phase attributed to a linear decrease of the volume of the more conductive Al phase through a rule of mixtures. The conductivity also decreased with increasing Cu content, between 0~3%. The conductivity increased with increasing B content, reached the peak at 0.02% B and thereafter decreased somewhat. The mechanism was that B reacted with the transition element in the Al phase to form boride, decreasing the transition element concentration in the Al lattice, and decreasing the lattice constant. The thermal conductivity, λ, was related to the electrical conductivity, σ, by means of λ=LTσ+λg, where L is the apparent Lorentz constant, 1.86 × 10−8; T is the absolute temperature, 293 K; λg is the lattice conductivity, 42.3 W/(m·K).

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Section: Introductionmentioning

confidence: 99%

Influence of Si, Cu, B, and Trace Alloying Elements on the Conductivity of the Al-Si-Cu Alloy

Yang

et al. 2022

Materials

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“…Saito was the first to introduce the process, in 1998, as a new SPD method for achieving a UFGed structure in sheet metals [4,7]. Since then, researchers have tried to understand the process better and have started to develop it by investigating the effect of the involved ARB parameters, conducting hot ARB and applying it on various metals, using different reinforcement particles to produce multilayered composites, and assessing mechanical and microstructural features, texture, and their effects on the ARB process [9][10][11][12][13]. One of the critical issues in ARB and all rollingbased processes is studying the anisotropy and texture, which are essential properties of materials and significantly impact the process results [14,15].…”

Section: Introductionmentioning

confidence: 99%

Anisotropic Behavior of Al1050 through Accumulative Roll Bonding

et al. 2021

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In this study, Al1050 sheets were fabricated in five passes using the accumulative roll bonding (ARB) technique. For a more accurate and complete investigation, different tests were used, including a uniaxial tensile test. The results show that elongation increases about 50% for the annealed sample, which is 2.5 times that of the fifth pass (20%). A five-fold increase can be seen in tensile strength, which was 50 MPa in the annealed sample and reached 250 MPa at the end of the fifth pass. The annealed sample’s yield stress was 40 MPa, 4.5 times less than 180 MPa after five passes of ARB. Then, to evaluate sample hardness, the Vickers microhardness test was conducted in the samples’ depth direction, which recorded 39 HV for the annealed piece and 68 HV after the last ARB pass. These results show that the hardness increases by 1.8 times after five passes of ARB. In the next step, by conducting fractography tests after the sample fractures during the tensile test, the fracture’s mechanism and type were identified and explained. Finally, X-ray diffraction (XRD) was employed to produce pole figures of sample texture, and the anisotropy phenomena of the annealed sample and ARBed samples were wholly examined. In this study, with the help of pole figures, the anisotropic behavior after ARB was investigated and analyzed. In each step of the process, observing the samples’ texture states and the anisotropy magnificent was possible. According to the results, normal anisotropy of 0.6 in the annealed sample and 1.8 achieved after the fifth pass of ARB indicates that ARB leads to an increase in anisotropy.

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“…34 In a number of works, in situ synthesis of Al 3 Er particles in aluminum alloys has been reported. 35,36 However, the advantage of the ex situ method is the ability to control the composition and size of particles introduced into the melt, depending on the parameters for obtaining the master alloy. 37 A large amount of the primary Al 3 Er phase due to ex situ should contribute to a significant modification of the structure and dispersion hardening of cast alloys without the use of heat and deformation treatment.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al3Er Particles on the Structure, Mechanical Properties, and Fracture of AA5056 Alloy After Casting and Deformation Treatment

Khrustalyov

Козулин

Жуков

et al. 2021

JOM

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The structure of the AA5056-Al 3 Er composite and the initial alloy was studied by optical and scanning electron microscopy. The introduction of 0.23 wt.% particles does not modify the structure of the aluminum alloy, but, due to dispersion hardening, increases the ultimate tensile strength and ductility of the metal matrix. Rolling the AA5056-Al 3 Er alloy leads to a more uniform distribution of particles in the volume of the material, but does not increase its yield strength or ultimate tensile strength. A more uniform distribution of deformation due to the influence of Al 3 Er particles made it possible to increase the ductility of the AA5056 alloy.

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Evolution of microstructure and texture for an Al-0.4 Er alloy during accumulative roll bonding

Cited by 16 publications

References 42 publications

Influence of Si, Cu, B, and Trace Alloying Elements on the Conductivity of the Al-Si-Cu Alloy

Influence of Si, Cu, B, and Trace Alloying Elements on the Conductivity of the Al-Si-Cu Alloy

Anisotropic Behavior of Al1050 through Accumulative Roll Bonding

Effect of Al3Er Particles on the Structure, Mechanical Properties, and Fracture of AA5056 Alloy After Casting and Deformation Treatment

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