Volume 37, Issue 4 (Journal of Advanced Materials-winter 2019)                   jame 2019, 37(4): 43-57 | Back to browse issues page

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Rajabi M, Shahmiri M, Ghanbari M. The Effect of Boron and Zirconium on the Microstructure and Mechanical Properties of Cast Fe3Al-Based Alloys. jame 2019; 37 (4) :43-57
URL: http://jame.iut.ac.ir/article-1-913-en.html
1. Department of Materials Engineering, Iran University of Science and Technology, Tehran, Iran. , m.rajabi8@gmail.com
Abstract:   (5928 Views)
In this study, the effects of boron (B) and zirconium (Zr) on the microstructure and mechanical properties of Fe3Al-based alloys were investigated. Cylindrical samples were produced using a vacuum induction melting furnace (VIM); consequently, the melt was cast into a metallic mold. The microstructure, phase identification, tensile and compressive mechanical properties and fractography of the samples were investigated. Upon microstructural observation, it was found that the alloys microstucture was denderitic and the precipitated phases were mostly present between interdendritic regions. Addition of B and Zr to the alloys resulted in the formation of boride precipitates and Laves phases. The results, therefore, showed that Zr had the most pronounced effect on the mechanical properties because of the formation of Laves phases. Fractographic studies of alloys also revealed that the brittle fracture was dominant between the samples.
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Type of Study: Research | Subject: Characterization and evaluation of engineering materials
Received: 2017/05/22 | Accepted: 2018/09/10 | Published: 2019/03/15

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