Effect of cooling rate on the solidification characteristics and dendrite coherency point of ADC12 aluminum die casting alloy using thermal analysis

Malekan, Mehdi; Naghdali, S.; Abrishami, S.; Mirghaderi, S. H.

doi:10.1007/s10973-015-5232-6

Cited by 22 publications

(7 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The growth of dendritic structure is affected by various solidification conditions, especially the cooling rate and temperature gradient. [3,[23][24][25][26][27] The cooling rate significantly influences the speed of heat removal from the material, consequently affecting the movement of the liquid-solid interface. [28] The mean cooling rate of 30Cr15Mo1N ingots at different pouring rates is shown in Figure 5a.…”

Section: Mean Cooling Rate and Temperature Gradientmentioning

confidence: 99%

Evolution of Dendrite Structure and Shrinkage Porosity in 30Cr15Mo1N Ingot with Pouring Rate

He,

Zhu,

et al. 2024

steel research int.

View full text Add to dashboard Cite

In this study, to clarify the evolution mechanism of dendrite structure and shrinkage porosity in 30Cr15Mo1N ingots under varying pouring rates, the changes in cooling rate, temperature gradient, secondary dendrite arm spacing (SDAS), columnar to equiaxed transition (CET), and area of shrinkage porosity with pouring rate are investigated. The cooling rate and temperature gradient calculated by using the ProCAST software increase with the pouring rate, leading to a great solidification rate. As a result, the SDAS decreases and the position of CET moves toward the center of 30Cr15Mo1N ingot. Additionally, the area proportion of shrinkage porosity increases with the increase in pouring rate. This phenomenon can be mainly due to the less overlap between columnar dendrite and higher permeability with the larger SDAS, which are conducive to the feeding of the molten steel. In addition, the delayed formation of semi‐solidified shell at the top of the ingot at low pouring rate minimizes the impact of solid contraction on the surface sink, which results in a flatter top surface of the ingot at low pouring rate.

show abstract

Section: Mean Cooling Rate and Temperature Gradientmentioning

confidence: 99%

Evolution of Dendrite Structure and Shrinkage Porosity in 30Cr15Mo1N Ingot with Pouring Rate

He,

Zhu,

et al. 2024

steel research int.

View full text Add to dashboard Cite

show abstract

“…Chemical compositions of Al alloys used in industrial production have significant variations in comparison with the contents of alloying elements of software package data banks. A suitable method to obtain an evaluation of the effect of certain parameters on the microstructure of these materials consists on the thermal analysis by obtaining temperature-time curves, which therefore could serve as input data for simulation software to improve the accuracy [2,3]. In the thermal analysis method, the solidification of the material is 2 monitored obtaining the variation of temperatures from the liquid phase until its total solidification.…”

Section: Introductionmentioning

confidence: 99%

“…Researchers use different test configurations depending on the objective of the study they perform [4][5][6]. Both materials and geometries of the molds developed for this type of studies vary according to each case, being in general steel [7,8], graphite [9,10], cupper [11] or sand [2] and mostly cylindrical in shape with different wall thicknesses. These molds are used to analyze the effect of the cooling rate on the characteristics of the alloy [2].…”

Section: Introductionmentioning

confidence: 99%

“…Both materials and geometries of the molds developed for this type of studies vary according to each case, being in general steel [7,8], graphite [9,10], cupper [11] or sand [2] and mostly cylindrical in shape with different wall thicknesses. These molds are used to analyze the effect of the cooling rate on the characteristics of the alloy [2]. There are also works that used thermal analysis to determine the most suitable superheat temperature in a process [12] or to find the dendrite coherency point [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…These molds are used to analyze the effect of the cooling rate on the characteristics of the alloy [2]. There are also works that used thermal analysis to determine the most suitable superheat temperature in a process [12] or to find the dendrite coherency point [2,3]. In any case, the analysis of the cooling curve offers very valuable information about the points at which the different phases and compounds of an alloy precipitate and the way in which it is solidified.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal Analysis and Computer Simulation of a Hypereutectic Al-Si Alloy Used for an Automotive Industry Part

Fuertes,

Rodriguez,

Perez

et al. 2023

Preprint

View full text Add to dashboard Cite

Thermal analysis of a hypereutectic Al-Si alloy used for an automotive part was carried out in this research work. Solidification characteristics are recognized from the Temperature-time curve and its corresponding derivatives. This analysis was successfully used in a simulation software program with the aim of improving the resultant simulation accuracy. In this study, different types of molds, with and without cooling systems, were designed and used. The melt present in the furnaces of the factory was used to simulate the casting process. The effect of different cooling rates (1.2ºC/s, 2ºC/s, 2.3ºC/s and 2.9ºC/s) on the solidification parameters have been investigated. Differences in the resultant microstructure between wall and center of the molds have been analyzed and have been related to the T-t curve. Finally, the experimental results clearly indicate that the water-cooling rate of the molds and the melt temperature directly affects the solidification process as well as the final microstructure.

show abstract

Thermal Analysis

Hernández¹,

Ramirez²,

Mackay³

2017

Al-Si Alloys

View full text Add to dashboard Cite

Effect of cooling rate on the solidification characteristics and dendrite coherency point of ADC12 aluminum die casting alloy using thermal analysis

Cited by 22 publications

References 13 publications

Evolution of Dendrite Structure and Shrinkage Porosity in 30Cr15Mo1N Ingot with Pouring Rate

Evolution of Dendrite Structure and Shrinkage Porosity in 30Cr15Mo1N Ingot with Pouring Rate

Thermal Analysis and Computer Simulation of a Hypereutectic Al-Si Alloy Used for an Automotive Industry Part

Thermal Analysis

Contact Info

Product

Resources

About