Investigation on Hot Tearing Susceptibility of A201 Aluminum Alloy in Different Ingate Velocities and Molds

Document Type: Original Article

Authors

1 Materials and Mines Faculty, YazdUniversity, Yazd, Iran

2 University of Applied Science, Niroo Moharrekeh Co, Qazvin, Iran

3 Iran University of Industries and Mines (IUIM), Qazvin, Iran

4 ShahidRajaei Power Plant, Qazvin, Iran

5 R&D Department, Qazvin Gas Company, Qazvin, Iran

Abstract

In this research, Hot tearing Behavior and susceptibility of the Al-Cu A201 aluminum alloy in different mold has been investigated. There are a lot of methods that used for hot tear tests but between all of these methods that proposed for this kind of the tests, The Ring model was employed for testing the hot tearing tendency. In order to increase the investigated parameters, wooden model designated to support different ingate velocities. Some samples that exposed to the Hot Tear were inspected by visual and NDT (None destructive) tests followed by Scanning Electron Microscopy (SEM) to study of the teared surface of the samples. The extracted results show that the number and severity of tears increased by changing the strength of mold from green sand to CO2 sand. The evaluation of the experimental results in this study showed that these results is in good agreement with the other obtained by another researchers

Keywords


[1] D. Warrington and D. G. McCartney, Cast Met., 2, (1989), 134.

[2] G. Cao and S. Kou, Metall. Mater. Trans., A, 37 A, (2006), 3647.

[3] D. G. Eskin, "Physical metallurgy of direct chill casting of aluminium", First Edition (2008), CRC Press.

[4] J. B. Mitchell, S. L. Cockcroft, D . Viano, C. Davidson and D. John, Metall. Mater. Trans., A (2007), 2503.

[5] R. A. Rosenberg, M. C. Flemings and H. F. Taylor, AFS Trans., (1960), 518.

[6] J. A. Spittle and A. A. Cushway, Met. Technolo., 10 (1983), 6.

[7] F. D'Elia and C. Ravindran, Materials and Design 64 (2014), 44.

[8] J. A. Spittle and A. A. Cushway, "Influences of superheat and grain structure on hot tearing susceptibilities of Al-Cu alloy castings", The metal Society (1983).

[9] M. Ghambarian, S.M.A. Boutorabi and F. Shahri, J. Environ. Friendly Mater., 2, 1 (2018), 13.

[10] M. Nasr Esfahani and B. Niroumand,, Mater. Charact., 61 (2010), 318.

[11] M. Mirzayi, M. Sc Thesis, Iran University of Sci. Technol. , (2011), 70.