Experimental study of phase transformation in non-equilibrium hypoeutectic alloy from the Fe–Cr–Ni–Mo–C system
详细信息 查看全文
- 作者：K. Wieczerzak ; P. Bała ; G. Cios ; T. Tokarski…
- 关键词：Fe–Cr–Ni–Mo–C ; Phase transformation ; Dilatometry ; DSC ; Eutectic carbides
- 刊名：Journal of Thermal Analysis and Calorimetry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：127
- 期：1
- 页码：449-455
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Physical Chemistry; Analytical Chemistry; Polymer Sciences; Inorganic Chemistry; Measurement Science and Instrumentation;
- 出版者：Springer Netherlands
- ISSN：1588-2926
- 卷排序：127
文摘
In the present study, experimental and thermodynamic analysis of phase transformation in hypoeutectic Fe–24Cr–11Ni–4Mo–0.64C alloy is presented. The investigated alloy was synthesized in an arc furnace in high-purity argon atmosphere using suction-casting unit. Chemical composition of the alloy was determined using an optical emission spectrometer. The microstructure was characterized by scanning electron microscopy. Phase composition in as-cast state was analysed by X-ray diffraction and compared with thermodynamic calculations for equilibrium state using Thermo-Calc software. The analysis of phase transformations was conducted by dilatometry and differential scanning calorimetry investigations. It was found that phase composition of the alloy after non-equilibrium solidification (cooling rate ~30 °C s−1) differs significantly from equilibrium state. Critical temperatures of phase transformations in the alloy were determined.