Effect of Ti on microstructure and mechanical properties of die-cast Al-Mg-Zn-Si alloy

Zhang, Yu; Yan, Feng; Zhao, Yixuan; Song, Chunli; Hou, Hua

doi:10.1088/2053-1591/ab7f5d

Cited by 15 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This behavior agrees with the result which obtained by Jaradeh et al [26], where not all Ti3Al particles are dissolved. Zhang et al [27] found that excess Ti addition tend to form large particles of Ti3Al intermetallic.…”

Section: Results and Discussion Joint Addition Of 01 % Zr And Variomentioning

confidence: 99%

Joint Addition of Zirconium, Titanium and Chromium to Commercial Pure Aluminium

Aboraia

Elrab

Abdalla

2020

Journal of Petroleum and Mining Engineering

View full text Add to dashboard Cite

The effect of joint addition of Zr, Ti and Cr on the grain refinement of commercial pure aluminium (99.7% Al) has been investigated by optical microscopy and scanning electron microscopy (SEM) as well as Energy Dispersive X-ray Spectroscopy (EDS). It was found that joint addition of 0.15 wt% Zr and 0.025 wt% Ti to Al can result in a remarkable refinement with an average grain size of 102 μm. It was found the optimum addition level of Ti to be 0.025 wt% in the presence of 0.1 % Zr and any increase in the Ti beyond 0.025wt% results in coarse grain size. Joint additions of 0.15 wt% Zr, 0.025 wt% Ti and 0.15 wt% Cr to Al facilitate better grain refinement and the average grain size was 75 μm. The grain refining performance of joint addition of 0.1 wt.% Zr and different additions of either Ti or Cr is higher than refining with zirconium alone. EDS and SEM analysis of the precipitated phases observed at or near the centers of the refined aluminium with joint addition of Zr and Ti was found to be Al3(Zr1-xTix). These Al3(Zr1-xTix) particles act as heterogeneous nucleation sites for α-Al during solidification and resulted in better grain refinement.

show abstract

Section: Results and Discussion Joint Addition Of 01 % Zr And Variomentioning

confidence: 99%

Joint Addition of Zirconium, Titanium and Chromium to Commercial Pure Aluminium

Aboraia

Elrab

Abdalla

2020

Journal of Petroleum and Mining Engineering

View full text Add to dashboard Cite

show abstract

“…According to duplex nucleation theory, the nuclei in crystallization are TiB 2 particles with thin TiAl 3 layers [14]. The TiAl 3 intermetallic particles may function as nucleating agents for α-Al crystals [15]. Ding et al [16] found that the arrangement of grain refinement characteristics in commercial aluminum was altered by incorporating Al-5Ti master alloys with variable sizes, morphologies, and intermetallic TiAl 3 .…”

Section: Introductionmentioning

confidence: 99%

Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives

et al. 2022

View full text Add to dashboard Cite

In this study, two successive methods were used to improve the grain structure and the mechanical and physical properties of Al 5052 aluminum alloy. The modifying elements, 0.99 wt.% of titanium (Ti) and 0.2 wt.% of boron (B), were added during the casting process. After solidification, single- and double-pass friction stir processing (FSP) were performed to achieve additional grain refinement and disperse the newly formed phases well. The addition of Ti–B modifiers significantly improved the mechanical and physical properties of the Al 5052 aluminum alloy. Nevertheless, only a 3% improvement in microhardness was achieved. The ultimate strength (US), yield strength (YS), and elastic modulus were investigated. In addition, the electrical conductivity was reduced by 56% compared to the base alloys. The effects of grain refinement on thermal expansion and corrosion rate were studied; the modified alloy with Ti–B in the as-cast state showed lower dimension stability than the samples treated with the FSP method. The grain refinement significantly affected the corrosion resistance; for example, single and double FSP passes reduced the corrosion rate by 11.4 times and 19.2 times, respectively. The successive FSP passes, resulting in a non-porous structure, increased the bulk density and formed precipitates with high bulk density.

show abstract

“…Recently, a low-carbon society/carbon-free society has been a focus in realizing a sustainable world. Many innovative technologies, such as new generation thermal plants 1) and light-metal alloy manufacturing, [2][3][4] have been developed. New technology often causes unexpected phenomena, so real time process monitoring during operation has been desired to achieve safety and efficiency, simultaneously.…”

Section: Introductionmentioning

confidence: 99%

LiNbO₃-based sol-gel composite ultrasonic transducer poled at low temperatures

Kambayashi

Zaito

Arai

et al. 2022

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

LiNbO3 (LN)-Based sol-gel composites are suitable for high-temperature ultrasonic transducer applications at 700 °C; however, poling requires high temperatures (>550 °C) and shows relatively low signal strength. To realize the polarization temperature reduction of the LN-based sol-gel composite ultrasonic transducer, alumina (AO) and strontium-doped titanium oxide (TO) were chosen as the sol-gel phase material, and LN/AO and LN/TO films were fabricated on an Inconel substrate. In each poling process, corona discharge was executed for LN/AO and LN/TO after heat treatment in the furnace at 400 °C and 200 °C, respectively. Ultrasonic measurements up to 700 °C were performed, and both transducers confirmed the reflected echoes and ultrasonic performance stability at 700 °C. In particular, LN/TO showed the highest signal strength compared to the previously developed high-temperature lead-free sol-gel composite materials, LN/BiT, Bi4Ti 3O12(BiT)/BiT, and CaBi2Ta2O9 (CBTa)/BiT.

show abstract

Effect of Ti on microstructure and mechanical properties of die-cast Al-Mg-Zn-Si alloy

Cited by 15 publications

References 26 publications

Joint Addition of Zirconium, Titanium and Chromium to Commercial Pure Aluminium

Joint Addition of Zirconium, Titanium and Chromium to Commercial Pure Aluminium

Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives

LiNbO₃-based sol-gel composite ultrasonic transducer poled at low temperatures

Contact Info

Product

Resources

About

Effect of Ti on microstructure and mechanical properties of die-cast Al-Mg-Zn-Si alloy

Cited by 15 publications

References 26 publications

Joint Addition of Zirconium, Titanium and Chromium to Commercial Pure Aluminium

Joint Addition of Zirconium, Titanium and Chromium to Commercial Pure Aluminium

Influence of Friction Stir Process on the Physical, Microstructural, Corrosive, and Electrical Properties of an Al–Mg Alloy Modified with Ti–B Additives

LiNbO3-based sol-gel composite ultrasonic transducer poled at low temperatures

Contact Info

Product

Resources

About

LiNbO₃-based sol-gel composite ultrasonic transducer poled at low temperatures