Determining the solidification characteristics of Manganese bronze (MAB) alloy using computer-aided cooling curve analysis

2021 ◽  
Author(s):  
Pranesh ◽  
Sheikh Mohammed Anas ◽  
Sheron Johnson ◽  
Robin Jose ◽  
B. Sachin ◽  
...  
Keyword(s):  
Curve Analysis ◽  
Cooling Curve ◽  
Cooling Curve Analysis ◽  
Computer Aided

Modification Effects of Sb on Al7SiMg Alloy Measured with Cooling Curve Analysis

2016 ◽  
Vol 879 ◽  
pp. 2113-2118 ◽  
Author(s):  
Shu Sen Wu ◽  
Meng Jie Lü ◽  
Jian Xun Chen ◽  
You Wu Mao ◽  
Shu Lin Lü
Keyword(s):  
Thermal Analysis ◽  
Growth Temperature ◽  
Curve Analysis ◽  
Cooling Curve ◽  
Eutectic Solidification ◽  
Microstructure Observation ◽  
Modification Effect ◽  
Cooling Curve Analysis ◽  
Computer Aided ◽  
Eutectic Si

The modification mechanism of Sb on eutectic Si phase of Al-Si alloys was not understood very well. In this paper the modification effects of Sb on Al7SiMg alloy were investigated by computer aided cooling curve thermal analysis coupled with microstructure observation. The results show that the addition of Sb with 0.1%~0.25% amount has refining effect on eutectic Si phase, and this modification effect can be recorded by the cooling curve. The addition of Sb decreases the growth temperature of the eutectic solidification (TEG) by 5.0 °C to 7.8 °C, and this indicates that there is an undercooling effect with Sb modification. Moreover, faster cooling rate can obtain more superior morphology of eutectic Si, which can be changed from short rod to nearly granular particles. The morphology of eutectic Si is nearly unchanged with holding time extending from 0.5h to 2.5h, which means Sb has long modification effect for Al-Si alloys.

Computer aided cooling curve analysis (CACCA) of ADC-12 alloy

2021 ◽  
Author(s):  
Athul V. Anil ◽  
Vijeesh Vijayan ◽  
B. Sachin ◽  
Prithvi Kumar Rai ◽  
Muralidhara Rao
Keyword(s):  
Curve Analysis ◽  
Cooling Curve ◽  
Cooling Curve Analysis ◽  
Computer Aided

scholarly journals Investigation the solidification of Al-4.8 wt.%Cu alloy at different cooling rate by computer-aided cooling curve analysis

2014 ◽  
Vol 20 (2) ◽  
pp. 107-118 ◽  
Author(s):  
Mehdi Dehnavi ◽  
Hosein Vafaeenezhad ◽  
Mohsen Haddad Sabzevar
Keyword(s):  
Cooling Rate ◽  
Alloy Composition ◽  
Data Acquisition System ◽  
Structural Features ◽  
Curve Analysis ◽  
Cooling Curve ◽  
Cooling Curves ◽  
Cu Alloy ◽  
Cooling Curve Analysis ◽  
Computer Aided

Depending on the casting conditions and alloy composition, microstructure and properties of the aluminium alloys will be different. There are many techniques available for investigating the solidification of metals and alloys. In recent years computer-aided cooling curve analysis (CA-CCA) has been used to determine thermophysical properties of alloys, latent heat and solid fraction. The aim of this study was to investigate the effect of cooling rate on the structural features of Al-4.8 wt.%Cu alloy by thermal analysis of cooling curves. To do this, Al-4.8 wt.%Cu alloy was melted and solidified applying 0.04, 0.42, and 1.08 °C/sec cooling rates. The temperature of the samples was recorded using a K thermocouple and a data acquisition system connected to a PC. It was found that the formation temperatures of various thermal parameters such as (liquidus, solidus and eutectic temperatures) are shifting by increasing of cooling rate from 0.04 °C/sec to 1.08 °C/sec. The structural results show that grain size and secondary dendrite arm spacing decreased by increasing of cooling rate. 

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