The Influence of the Melt-Pouring Temperature and Inoculant Content on the Macro and Microstructure of the IN713C Ni-Based Superalloy
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- 作者：Hubert Matysiak ; Malgorzata Zagorska ; Alicja Balkowiec ; Boguslawa Adamczyk-Cieslak…
- 刊名：JOM Journal of the Minerals, Metals and Materials Society
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：68
- 期：1
- 页码：185-197
- 全文大小：3,380 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Metallic Materials
Nanotechnology
Crystallography - 出版者：Springer Boston
- ISSN：1543-1851
文摘
The aim of this work was to determine the effect of melt-pouring temperature T m and inoculant (cobalt aluminate—CoAl2O4) concentration in the prime coat of the shell mold on the macro- and microstructure of the IN713C superalloy. The results show that cobalt aluminate is an effective modifier of the IN713C superalloy, which causes refinement of the equiaxed grains (EX) and a reduction of the fraction and size of the columnar grains on the casting surface. Also, the melt-pouring temperature in the range of 1450–1520°C was found to influence the mean EX grain size. Based on the results of differential thermal analysis of the alloy and detailed microstructure characterization, a sequence of precipitations has been proposed that advances current understanding of processes that take place during alloy solidification and casting cooling.