Enhanced Strength and Toughness in Al-Mg-Si Alloys with Addition of Cr, Mn, and Cu Elements

Lin, Sen; Dang, Jian; Wang, Zhongping; Sun, Yuanwei; Xiang, Yuhui

doi:10.1007/s11665-022-07191-8

Cited by 5 publications

(2 citation statements)

References 49 publications

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“…On the one hand, to ensure high strength, these alloys often contain high contents of Si, Mg, Cu, Mn, etc. [70]. The maximum solubility values of Si, Mg, Cu, and Mn in aluminum are 1.65 wt.%, 14.9 wt.%, 5.67 wt.%, and 1.82 wt.%, which are not very low.…”

Section: Al-si Alloysmentioning

confidence: 88%

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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Section: Al-si Alloysmentioning

confidence: 88%

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

Liu,

Xiong

2024

Metals

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“…In order to improve the properties of the alloy, the researchers began microalloying the Al-Mg-Si alloy with the addition of microalloying elements such as Cu, Ag, Zr, Sc, and so on. In the past, many researchers found that adding Cu or Ag to Al-Mg-Si alloys can significantly improve the Vickers hardness and strength of the alloy and they can promote the nucleation of β phase, making the precipitates in the aging process more dispersed and finer [5][6][7][8][9]. Furthermore, the addition of Cu may also cause the Q phase to be formed during the aging process [10], which is a key strengthening phase in aluminum alloys.…”

Section: Introductionmentioning

confidence: 99%

Effects of Cu Addition on Age Hardening Behavior and Mechanical Properties of High-Strength Al-1.2Mg-1.2Si Alloy

Zhang

Yan

et al. 2023

Materials

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In this study, the effects of Cu addition on artificial age hardening behavior and mechanical properties of Al-1.2Mg-1.2Si-(xCu) alloy was investigated quantitatively and qualitatively by Vickers hardness, tensile test, and transmission electron microscope. The results indicated that Cu addition enhanced the aging response of the alloy at 175 °C. With the increase in Cu content, the time for the alloys to reach peak aging decreased from 12 h to 10 h and 8 h. The tensile strength of the alloy was obviously improved with Cu added in which was 421 MPa of 0Cu alloy, 448 MPa of 0.18Cu alloy, and 459 MPa of 0.37Cu alloy. The results of TEM observation revealed that the addition of 0.37Cu changed the aging precipitation sequence of the alloy, in which the precipitation sequence of 0Cu and 0.18Cu alloy was SSSS→GP zones/pre-β″→β″→β″ + β′, 0.37Cu alloy was SSSS→GP zones/pre-β″→β″ + L→β″ + L + Q′. Moreover, with the addition of Cu, the number density and volume fraction of precipitates of the Al-1.2Mg-1.2Si-(xCu) alloy was evidently increased. The number density was increased from 0.23 × 1023/m3 to 0.73 × 1023/m3 in the initial aging stage and from 1.9 × 1023/m3 to 5.5 × 1023/m3 in the peak aging stage. The volume fraction was increased from 0.27% to 0.59% in the early aging stage and from 4.05% to 5.36% in the peak aging stage. It indicated that Cu addition promoted the precipitation of strengthening precipitates and boosted the mechanical properties of the alloy accordingly.

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Effect of Rare-Earth La2O3 on Tribological Properties of Laser Cladding Nickel-Based Coatings on 35CrMoV Alloy Steel

Gao

Zhang

Ren

et al. 2023

J. of Materi Eng and Perform

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Enhanced Strength and Toughness in Al-Mg-Si Alloys with Addition of Cr, Mn, and Cu Elements

Cited by 5 publications

References 49 publications

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

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

Effects of Cu Addition on Age Hardening Behavior and Mechanical Properties of High-Strength Al-1.2Mg-1.2Si Alloy

Effect of Rare-Earth La2O3 on Tribological Properties of Laser Cladding Nickel-Based Coatings on 35CrMoV Alloy Steel

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