Applications of CALPHAD modeling and databases in advanced lightweight metallic materials

Shi, Renhai; Luo, Alan A.

doi:10.1016/j.calphad.2018.04.009

Cited by 74 publications

(17 citation statements)

References 87 publications

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“…Thus, various new alloys with expected properties have been developed assisted by the CALPHAD methodology. [170][171][172][173][174][175] This approach has also been used in the design of new Ti alloys with low elastic modulus as implant materials. Wang et al [176] used CALPHAD modeling to predict the elastic properties of Ti-Nb-Zr alloys and found that the polycrystalline Young's modulus limit is found to be 30-40 GPa.…”

Section: Calphad Methodologymentioning

confidence: 99%

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Liang

2020

Adv Eng Mater

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Section: Calphad Methodologymentioning

confidence: 99%

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Liang

2020

Adv Eng Mater

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“…Thermodynamic calculations based on CALPHAD (calculation of phase diagram) type thermodynamic databases have proved to be effective in precipitation and corrosion of Mg alloys [28,44]. It is undisputed that the accuracy of the thermodynamic database is primarily important for the related calculations and predictions [45][46][47][48]. Al [49] and Mn [50] both were reported to improve the mechanical properties of Mg alloys.…”

Section: Introductionmentioning

confidence: 99%

Effect of Manganese on Microstructure and Corrosion Behavior of the Mg-3Al Alloys

Shan

Liu

Zeng

et al. 2019

Metals

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Microstructure and corrosion behavior of the Mg-3Al-xMn (x = 0, 0.12, 0.21, 0.36, 0.45) (hereafter in wt.%) alloys were experimentally investigated by electron probe microanalysis (EPMA), scanning electron microscope equipped with energy dispersive X-ray spectroscopy (SEM/EDX), X-ray diffraction (XRD), electrochemical, and hydrogen evolution tests. A new self-constructed Mg-Al-Mn-Fe thermodynamic database was used to predict the solidification paths of the alloys. The addition of Mn showed no grain refinement in the cast Mg-3Al alloys. According to the microstructure observation, Al-Fe phases were observed in the non-Mn-added alloy, while Al8Mn5(LT) (Al8Mn5 in low temperature) became the main intermetallic phase in the Mn-added alloys, and the amount increased gradually with the Mn addition. The τ–Al0.89Mn1.11 phase with lower Al/(Fe + Mn) ratio was observed in the alloys with 0.36 and 0.45 wt.% Mn content. According to the electrochemical tests, all five alloys showed localized corrosion characteristics in 3.5 wt.% NaCl solution. Compared with the Mg-3Al alloy, the corrosion resistance of Mn-added alloys were significantly improved and increased gradually with the Mn addition, which was due to the variation of Al-containing intermetallic compounds. The present experimental investigations and thermodynamic calculations confirmed the mechanism that the increasing amount of Al8Mn5(LT) with Mn addition could encapsulate the B2-Al(Mn,Fe) phase with higher Fe. Therefore, it could prevent this detrimental phase from contacting magnesium matrix, thus suppressing micro-galvanic corrosion and improving corrosion resistance gradually.

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“…Therefore, the ternary Al-Sn-Zn system is considered as an important candidate in the lead-free solder systems. In order to promote the development of the lead-free solders, knowledge of the phase equilibria and thermodynamic properties of the ternary Al-Sn-Zn system is of fundamental importance and indispensable for design of the novel solders in the framework of the CALculation of PHAse Diagram (CALPHAD) approach [18,19].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic re-assessment of the Al-Sn-Zn ternary system

Tang

Zhang

2019

J min metall B Metall

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In this paper, a thermodynamic re-assessment of the Al-Sn-Zn ternary system was performed by means of the CALculation of PHAse Diagram (CALPHAD) approach. The thermodynamic descriptions of the binary Al-Sn, Al-Zn, and Sn-Zn systems from the literature were directly adopted, and the newly reported experimental phase equilibria, enthalpies of mixing, and activities of Al in the ternary liquid phase were taken into account. A set of self-consistent thermodynamic parameters for the ternary Al-Sn-Zn system were finally obtained. A comprehensive comparison between the presently calculated phase equilibria/thermodynamic properties and the experimental data indicates that the present thermodynamic descriptions of the ternary Al-Sn-Zn system show very good agreement with most of the experimental data. The further direct comparison with the calculated results due to the previous assessment demonstrates that a significant improvement was achieved by the present assessment though fewer ternary interaction parameters were utilized.

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Applications of CALPHAD modeling and databases in advanced lightweight metallic materials

Cited by 74 publications

References 87 publications

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Review of the Design of Titanium Alloys with Low Elastic Modulus as Implant Materials

Effect of Manganese on Microstructure and Corrosion Behavior of the Mg-3Al Alloys

Thermodynamic re-assessment of the Al-Sn-Zn ternary system

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