An overview of thixoforming process

Husain, N H; Ahmad, Abu Zaharin; Rashidi, M. M.

doi:10.1088/1757-899x/257/1/012053

Cited by 21 publications

(14 citation statements)

References 37 publications

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“…Liu et al suggest that dfs/dT less than 0.020 is preferred for semi-solid processing. It indicates that the overall change in solid fraction should be less than 2% throughout the semi-solid processing temperature range [8].…”

Section: Temperature Sensitivity Of Solid Fraction or Fraction Solid Sensitivity (Dfs/dt)mentioning

confidence: 99%

“…In both processes, the material will be processed to a required shape in its semi-solid state [7]. Current commercial alloys are designed either for casting or forming processes [8]. These alloys can have compatibility issues with semi-solid processing.…”

Section: Introductionmentioning

confidence: 99%

“…Tzimas and Zavaliangos reported that usage of thermodynamic simulation is time conserving and authentic in the prognosis of solidification behaviour of materials and hence effective in alloy design [13]. Recently Zoqui et.al also reported DSC calorimetric studies have good match with thermodynamic modelling [8]. But in solidification studies computer aided cooling curve can acquire more information which may not possible in calorimetry [14].…”

Section: Introductionmentioning

confidence: 99%

“…But in solidification studies computer aided cooling curve can acquire more information which may not possible in calorimetry [14]. CALPHAD approach (CALculation of PHAse Diagrams) is an effective method for quantitative modelling of thermodynamic data for applications like solidification analysis and alloy design [8], [11], [12], [15]. Phase composition identification in multi-component alloy, based on the Gibbs energy minimization is the key concept of CALPHAD approach.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, CALPHAD approach is a very useful tool for calculating the semi-solid processing parameters. Thermo-Calc is a software which works for CALPHAD approach implementation [8]- [10], [12], [17]. Thus, in the present work, by considering the commercial importance of semi-solid processing of Al alloys in transport industry, an attempt has been made to evaluate semi-solid processing parameters for Al-6Si-4Cu alloy by CALPHAD approach.…”

Section: Introductionmentioning

confidence: 99%

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CALPHAD Approach to Understand the Semi-Solid Processing Parameters of Al-6Si-4Cu Alloy

Gopalakrishnan¹,

Senthilkumar²

2021

Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, In

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Semi-solid processing has some prerequisites such as the feedstock alloy must meet certain thermodynamic criteria. Therefore, to reap the full benefits of semi-solid processing, it is important to assess the compliance of commercial aluminium alloys for semi-solid processing. Hence in the current paper, thermodynamic parameters for semisolid processing of 6,7 and y=3,4,5) alloys were assessed using CALPHAD approach. The results show that the thermodynamic simulation is effective in predicting the amenability of alloys for semi-solid processing. Also inferred that the variation of alloy composition within the ASTM standard range itself varies the solidification behaviour and this variation can affect semi-solid processing. Thus, a Taguchi L9 orthogonal array is constructed for various alloy compositions and based on the L9 array, the solidification curves were simulated by CALPHAD Approach. The best suited alloy and its thermodynamic parameters for semi-solid processing were identified. The simulated data for the best alloy composition is validated with the help of computer aided cooling curve analysis.

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Section: Temperature Sensitivity Of Solid Fraction or Fraction Solid Sensitivity (Dfs/dt)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%