Differential thermal analysis (DTA) on the reaction mechanism in Fe–Ti–B4C system |
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| Authors: | Zhiqiang Zhang Ping Shen Qichuan Jiang |
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| Affiliation: | aKey Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No.5988 Renmin Street, Changchun 130025, PR China |
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| Abstract: | Differential thermal analysis (DTA) was undertaken to determine the reaction mechanism in the Fe–Ti–B4C system under argon. When the mixtures were heated to about 786 °C, Fe2B and C appeared as a result of Fe reacting with B4C. As the temperature continued to increase, FeTi formed by an interdiffusion between Fe and Ti. When the mixtures were heated to 1089 °C, FeTi reacted with Ti, leading to the formation of a Fe–Ti melt, into which the displaced C and B from B4C dissolve, forming a Fe–Ti–C–B melt. Finally, when the concentration of C and B attained a certain value, Ti reacted with C and B, yielding TiC and TiB2 in the melt, and simultaneously considerable heat released. |
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| Keywords: | Intermetallics Precipitation Thermal analysis |
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