Rapid solidification of a FeSi intermetallic compound in undercooled melts: dendrite growth and microstructure transitions

Zhang, Jianbao; Zhang, Fan; Luo, Xuan; Zhou, Qing; Wang, Haifeng

doi:10.1007/s10853-019-04265-2

Cited by 8 publications

(1 citation statement)

References 53 publications

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“…However, some of these results are open to question, as the identification is often lacking crucial aspects detailed by Rietveld [53]. XRD spectra have been recorded for Fe 2 Si [37], Fe 5 Si 3 [75] and ϵ-FeSi [76,77]. ϵ-FeSi has only three 2 θ peaks with intensity ratios ≥ 20%; at 45.3° (210) 100%, 50° (211) 40% and 80.6° (321) 20%.…”

Section: Discussionmentioning

confidence: 99%

Role of preplaced silicon on a TIG processed SiC incorporated microalloyed steel

Baker

Escalona

Olasolo

et al. 2020

Materials Science and Technology

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Research aimed at enhancing the surface properties of carbon steels by incorporating fine silicon carbide particulates has had limited success because the dissolution of the ceramic occurred. This research considers a method of reducing SiC dissolution by generating a high Fe–Si liquid which protects the ceramic. Three particulate groups were investigated, (1) ∼ 5 µm SiC, (2) ∼45 µm Si +∼ 5 µm SiC, and (3) ∼45 µm Si, all incorporated into a microalloyed steel using a tungsten inert gas process. Detailed microhardness of the melt zones together with microstructural analysis showed that the addition of Si resulted in a cracked hard layer containing SiC. However, in Specimen 1, a thicker, hardcrack-free layer resulted from the microstructure developed by the dissolution of SiC.

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