The improvement of boron treatment efficiency and electrical conductivity of AA1070Al achieved by trace Ti assistant

Cui, Xiaoli; Wu, Yuying; Cui, Hongwei; Zhang, Guojun; Zhou, Bo; Liu, Xiangfa

doi:10.1016/j.jallcom.2017.11.099

Cited by 22 publications

(3 citation statements)

References 14 publications

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“…The impurity elements in the melt reduce the electrical conductivity of the alloy, and the electrical conductivity can be increased after the boron treatment [7][8][9]. Adding trace Ti can improve the treatment effect of boron treatment and promote the transformation of impurity elements from solid solution state to precipitation in the form of compounds, thus improving the electrical conductivity [10]. With regard to the research on the improvement of electrical conductivity by modification, the main point of view is that the morphology of eutectic silicon changes after modification, and electrons pass through the eutectic region more easily, thus improving the electrical conductivity [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Modification with Different Contents of Sb and Sr on the Thermal Conductivity of Hypoeutectic Al-Si Alloy

Guo

Guan

Yan

et al. 2020

Metals

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In this paper, the effects of size, morphology and distribution of eutectic silicon on the thermal conductivity of Al-8Si alloy modified by Sr (0.04, 0.08, 0.12 wt.%) and Sb (0.1, 0.3, 0.5 wt.%) elements with T6 heat treatment were investigated. The results show that the modified fibrous eutectic silicon has a significant capability of improvement of thermal conductivity, while the amount of the modifier has a relatively weak effect on thermal conductivity. After T6 treatment, the fracture or spheroidization of the flake eutectic silicon and the disappearance of clustering phenomenon could raise thermal conductivity, but the coarsening of fibrous eutectic silicon is inconducive to thermal conductivity. Finally, the effect of eutectic silicon on electron transport is analyzed in detail, which could provide a reference for enhancing the thermal (or electrical) conductivity of hypoeutectic Al-Si alloy through effective microstructure control.

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Section: Introductionmentioning

confidence: 99%

Effect of Modification with Different Contents of Sb and Sr on the Thermal Conductivity of Hypoeutectic Al-Si Alloy

Guo

Guan

Yan

et al. 2020

Metals

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“…In general, boron forms AlB 2 with Al. However, considering elements Ti, Zr, Cr, and V, because the Gibbs free energy of these borides is lower than that of AlB 2 (TiB 2 , ZrB 2 , VB 2 , CrB 2 ) [91], these atoms react with the borides to replace Al atoms through diffusion [71,[92][93][94]. Accordingly, various kinds of precipitate-state borides with transition metals are formed.…”

Section: Reducing the Solute Concentration Of Trace Elements In Solid...mentioning

confidence: 99%

“…[61], 2013, Springer). (b)The purification process of boron treatment (reprinted with permission from ref [91],. 2018, Elsevier) and (c) the effect of boron on the thermal conductivity of ADC12 alloy (reprinted ref [95]…”

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confidence: 99%

Research Progress on Thermal Conductivity of High-Pressure Die-Cast Aluminum Alloys

Liu,

Xiong

2024

Metals

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High-pressure die casting (HPDC) has been extensively used to manufacture aluminum alloy heat dissipation components in the fields of vehicles, electronics, and communication. With the increasing demand for HPDC heat dissipation components, the thermal conductivity of die-cast aluminum alloys is paid more attention. In this paper, a comprehensive review of the research progress on the thermal conductivity of HPDC aluminum alloys is provided. First of all, we introduce the general heat transport mechanism in aluminum alloys, including electrical transport and phonon transport. Secondly, we summarize several common die-cast aluminum alloy systems utilized for heat dissipation components, such as an Al–Si alloy system and silicon-free aluminum alloy systems, along with the corresponding composition optimizations for these alloy systems. Thirdly, the effect of processing parameters, which are significant for the HPDC process, on the thermal conductivity of HPDC aluminum alloys is discussed. Moreover, some heat treatment strategies for enhancing the thermal conductivity of die-cast aluminum alloys are briefly discussed. Apart from experimental findings, a range of theoretical models used to calculate the thermal conductivity of die-cast aluminum alloys are also summarized. This review aims to guide the development of new high-thermal-conductivity die-cast aluminum alloys.

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A Novel Approach to Improve Conductivity of 1XXX Al Alloy by In Situ Synthesis of Al–X-B Grain Refiner

Li,

Qin,

et al. 2024

Metall Mater Trans A

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The improvement of boron treatment efficiency and electrical conductivity of AA1070Al achieved by trace Ti assistant

Cited by 22 publications

References 14 publications

Effect of Modification with Different Contents of Sb and Sr on the Thermal Conductivity of Hypoeutectic Al-Si Alloy

Effect of Modification with Different Contents of Sb and Sr on the Thermal Conductivity of Hypoeutectic Al-Si Alloy

Research Progress on Thermal Conductivity of High-Pressure Die-Cast Aluminum Alloys

A Novel Approach to Improve Conductivity of 1XXX Al Alloy by In Situ Synthesis of Al–X-B Grain Refiner

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