Topic
Ferrotitanium
About: Ferrotitanium is a research topic. Over the lifetime, 898 publications have been published within this topic receiving 4833 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: In this paper, the microstructure, phase structure and wear properties were investigated by means of scanning electron microscopy and X-ray diffraction, as well as dry sliding wear test, which revealed higher wear resistance and lower friction coefficient than that of the substrate and FeCrBSi laser-clad coating.
Abstract: Titanium carbide particles reinforced Fe-based surface composite coatings were fabricated by laser cladding using a 5 kW CO2 laser. The microstructure, phase structure and wear properties were investigated by means of scanning electron microscopy, transmission electron microscopy and X-ray diffraction, as well as dry sliding wear test. The results showed that TiC carbides were formed via in situ reaction between ferrotitanium and graphite in the molten pool during the laser-clad process. The morphology of TiC is mainly cubic and dendritic form; and the TiC carbides were distributed uniformly in the composite coating. The TiC/matrix interface was found to be free from cracks and deleterious phases. The coatings reinforced by TiC particles revealed higher wear resistance and lower friction coefficient than that of the substrate and FeCrBSi laser-clad coating.
101 citations
TL;DR: In this article, in situ synthesized TiC particles reinforced Fe-based surface composite coatings by multi-pass overlapping gas tungsten arc welding (GTAW) melting process employing a proper amount of graphite and ferrotitanium (FeTi) on AISI 1020 steel substrate was produced.
Abstract: In this paper, in situ synthesized TiC particles reinforced Fe-based surface composite coatings by multi-pass overlapping gas tungsten arc welding (GTAW) melting process employing a proper amount of graphite and ferrotitanium (FeTi) on AISI 1020 steel substrate was produced. The microstructure and wear properties of the composite coatings were investigated by means of an electron microprobe microanalysis (EPMA), X-ray diffractometer and wear tester. The results showed that the multi-pass overlapping GTAW melting surface composite coatings can be obtained under suitable welding parameters, and no crack and porosity are found in the tracks. The X-ray and EPMA results confirm that TiC particles can be formed via reaction of FeTi and graphite during multi-pass overlapping GTAW melting process. TiC particles present cubic and dendrite shape in the non-overlapping zone. It is found that there occurred TiC particles coarsening at the overlap regions, which can lead to detrimental effects on the hardness and wear performance. Composite coatings give a high hardness and excellent wear resistance; and the wear friction coefficient of the coating is less than that of the 1020 steel. As a result, multi-pass overlapping GTAW melting process can be used effectively for producing surface composite coatings with a pre-placed powder to improve wear resistance of the AISI 1020 steel.
97 citations
TL;DR: In this article, different hardfacing layers were produced by shield manual arc welding (SMAW) process in which a bare electrode of H08A was coated with fluxes, to which different measures of ferrotitanium (Fe-Ti), ferrovanadium (FeV), ferromolybdenum (FeMo) and graphite had been added.
90 citations
TL;DR: In this article, the effect of sintering process on the densification, hardness and phase evolution of the composite was investigated, and the results showed that when the composite is sintered at 1050°C for 5min, the maximum densification and hardness are 99.2% and 83.8 HRA, respectively.
88 citations
TL;DR: In this article, the current status of Ti scrap generation and its recycling flow are reviewed and new developments in Ti recycling technology are also discussed, where the major impurities in Ti scrap are O and Fe.
Abstract: The major resource for recycling Ti is currently in-house Ti scrap generated in smelting and fabrication processes instead of postconsumer Ti products, and the actual recycling rate including cascade recycling in the smelting and fabrication industry is high. The major impurities in Ti scrap are O and Fe. High-grade Ti scrap with low O and Fe concentrations is remelted to obtain Ti and its alloys. On the other hand, low-grade Ti scrap with high O and Fe concentrations is used as ferrotitanium for the steel industry. However, if demand for Ti drastically increases, the amount of low-grade Ti scrap generated would exceed the demand for ferrotitanium. Before this happens, technologies for anti-contamination or for efficient O and Fe removal must be developed for efficient utilization of Ti. Herein, the current status of Ti scrap generation and its recycling flow are reviewed. New developments in Ti recycling technology are also discussed.
84 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2022 | 1 |
| 2021 | 13 |
| 2020 | 53 |
| 2019 | 71 |
| 2018 | 58 |
| 2017 | 75 |