Abstract
The objective of this research is to investigate the effect
of pouring temperature on the microstructure of the cast iron. The pattern was designed with 300 mm of width and the thickness variations are
25 mm and poured at five different temperatures; 1300, 1325, 1350, 1375 and
1400oC. Several cast irons, prepared with different chemical
compositions and microstructures (three lamellar and three spheroidal
structures) have been examined by extensive mechanical testing and optical
microscopy. The fluidity of spheroidal and lamellar graphite in cast iron
increases with the pouring temperature. The numbers of nodules were decreased
by increasing pouring temperature for spheroidal structures. Whereas, the
numbers of flakes of lamellar structures changed by both pouring temperature
and chemical composition. In general, with increasing pouring temperature, the
amount of pearlite in the internal structure of both lamellar and spheroidal
graphite cast iron materials were increased.
References
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Abstract
References
- [1]. S Z. L. Lu, Y. X. Zhou, Q. C. Rao, Z. H. Jin, J. Mater. Process. Technol. 116, 176-181, 2001 [2]. L. Ribeiro, A. Barbosa, F. Viana, A. Monteiro, Baptista, C. Dias, C. A. Ribeiro, Wear 270, 535-540, 2011 [3]. Z. R. Yang, D. S. Li, S. Q. Wang, M. X. Wei, J. Iron Steel Res. Int. 20 No.10, 81-86, 2013 [4]. S. Kumar, P. Kumar, H. S. Shan, Effect of Evaporative Pattern Casting Process Parameters on the Surface Roughness of Al-7% Si Alloy Casting. Journal of Materials Processing Technology. 182, 615-623, 2007 [5]. S. Kumar, P. Kumar, H. S. Shan, Optimation of Tensile Properties of Evaporative Casting Process Through Taguchi's Method. Journal of Materials Processing Technology. 204, 59-69, 2008 [6]. X. Yao, S. Shivkumar, Molding filling characteristics in lost foam casting process. Materials science and Technology. 31, 841-846, 1997 [7]. M. Khodai, N. Parvin, Pressure Measurement and Some Lost Foam Casting in Observation. Journal of Materials Processing and Technology. 206,1-8, 2008 [8]. S. Shivkumar, X. Yao, M. Makhlouf, Polymer Melt Interactions During Formation in the Lost Foam Process. Metallurgica et Materialia scripta. 33, 39-46, 1995 [9]. S. R. Shin, Z. H. Lee, Hydrogen Gas Pic-Up of Alloy During Lost Foam Casting Melt. Journal of Materials Science. 39, 1536-1569, 2004.
Details
| Subjects | Engineering |
|---|---|
| Journal Section | Makaleler |
| Authors | |
| Publication Date | October 10, 2019 |
| Published in Issue | Year 2019 Volume: 3 Issue: 2 |
