Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/79766
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Reaction mechanisms of the TiC/Fe composite fabricated by exothermic dispersion from Fe-Ti-C element system |
Author: | Zhu, H. Dongho, K. Wang, H. Huang, J. Li, J. Xie, Z. |
Citation: | Powder Technology, 2013; 246:456-461 |
Publisher: | Elsevier Science Sa |
Issue Date: | 2013 |
ISSN: | 0032-5910 1873-328X |
Statement of Responsibility: | Heguo Zhu, Kang Dong, Huan Wang, Jiewen Huang, Jianliang Li, Zonghan Xie |
Abstract: | In this paper, the iron matrix composite TiC/Fe was fabricated by an in-situ process called exothermic dispersive synthesis from a powder blend of pure elements Fe, Ti and C. The microstructure of the resulting composite was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy (EDS). Only TiC phase was found to form during the heating process. Differential scanning calorimetry (DSC) analysis reveals that the reaction between C and Ti occurs through one step and its activation energy is 2586.5. kJ/mol. Moreover, with the increase of the heating rate, the reaction peak shifts to the higher temperature. The whole reaction consists of three distinct stages: at the start, the reaction rate is very slow, and then it increases rapidly, finally it becomes slow again toward the completion. During the heating process, C diffused into the iron matrix and the content of C in the iron can exceed 2.11%, leading to the formation of both eutectic and eutectoid structure in the final composite. © 2013. |
Keywords: | Iron matrix composites Reaction mechanism Differential scanning calorimetry (DSC) Activation energy |
Rights: | Copyright © 2013 |
DOI: | 10.1016/j.powtec.2013.06.002 |
Published version: | http://dx.doi.org/10.1016/j.powtec.2013.06.002 |
Appears in Collections: | Aurora harvest Mechanical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.