TiC-Fe-Based Composite Coating Prepared by Self-Propagating High-Temperature Synthesis

Shen, He; Fan, Xiaoliang; Chang, Qingming; Xiao, Liuling

doi:10.1007/s11663-017-0942-8

Cited by 14 publications

(14 citation statements)

References 15 publications

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“…The cumulative frequency curve shows that 50% of the analyzed particles were smaller than 1.34 µm. These results are in line with those reported by He et al [23] on a TiC-Fe-based composite produced by SHS. Figure 17.…”

Section: Composite Zonesupporting

confidence: 93%

“…In situ and ex situ methods could be applied to fabricate the composite reinforcement [10][11][12]. In the ex situ methods, the ceramic is previously produced with the required shape and then inserted into the mold [11,[13][14][15][16][17][18][19][20][21][22], while in situ methods aim to produce the ceramic particles through the combustion reaction of the powder compacts inserted in the mold cavity [23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Regarding the technology, investigations were focused on the CS of several powder systems, such as Ti-C [30,[36][37][38][39][40], Ni-Ti-C [41,42], Ni-Ti-B 4 C [31], Fe-Ti-C/Fe-Cr-Ti-C [10,[23][24][25]43,44], Cu-Ti-B 4 C [45][46][47], and Al-Ti-B 4 C [12,48]. Some of them were applied to the reinforcement of steel parts [12,24,25,42,43,45] and very few to the reinforcement of iron components [23,[38][39][40].…”

Section: Introductionmentioning

confidence: 99%

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Microstructural Characterization of TiC–White Cast-Iron Composites Fabricated by In Situ Technique

et al. 2020

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High-chromium white cast-iron specimens locally reinforced with TiC–metal matrix composites were successfully produced via an in situ technique based on combustion synthesis. Powder mixtures of Ti, Al, and graphite were prepared and compressed to fabricate green powder compacts that were inserted into the mold cavity before the casting. The heat of the molten iron causes the ignition of the combustion reaction of the reactant powders, resulting in the formation of the TiC by self-propagating high-temperature synthesis. The microstructure of the resultant composites and the bonding interfaces was characterized by scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The microstructural results showed a good adhesion of the composite, suggesting an effective infiltration of the metal into the inserted compact, yet a non-homogeneous distribution of the TiC in the martensite matrix was observed. Based on the results, the in situ synthesis appears to be a great potential technique for industrial applications.

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Section: Composite Zonesupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructural Characterization of TiC–White Cast-Iron Composites Fabricated by In Situ Technique

et al. 2020

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“…Research has indicated that surface treatment and coating could be an effective way to protect die surfaces from thermal fatigue and extend die life by reducing the damage at contact surfaces [5]. Several surface modification methods, such as physical vapor deposition (PVD), chemical vapor deposition (CVD), ion implantation, thermal spray, self-propagating high-temperature synthesis (SHS), as well as laser and plasma cladding, have been adopted to produce coatings of carbide, nitride, boride, and silicide for enhancing the service life of dies [1,[5][6][7][8][9]. Among these, SHS has many remarkable advantages, such as high efficiency and purity of products, low energy and cost requirements, no high-temperature furnace process, non-polluting traits, and a relatively simple process [10,11].…”

Section: Introductionmentioning

confidence: 99%

Corrosion and Thermal Fatigue Behaviors of TiC/Ni Composite Coating by Self-Propagating High-Temperature Synthesis in Molten Aluminum Alloy

et al. 2017

Self Cite

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TiC/Ni composite coatings on H13 steel plates were fabricated in situ by self-propagating high-temperature synthesis and combined with a pseudo-heat isostatic press. The microstructure of the coating was characterized by X-ray diffraction and scanning electron microscopy. The microhardness, corrosion, and thermal fatigue behaviors of the coating were investigated by a microhardness test, immersion test, and thermal fatigue test, respectively. The results showed that the in situ coating consisted of TiC and Ni binder phases. Spheroidal TiC particles were enveloped by a nearly continuous Ni binder phase. Coating showed good metallurgical bonding in the interface. The corrosive mechanism of the coating surface in molten aluminum alloy involves the Ni binder phase being etched by aluminum to form AlNi 3 and the oxidization of the TiC-reinforced phase. The corrosive mechanism that occurred at the front of the corrosion involves the Ni binder phase of the coating being etched by aluminum to form AlNi 3 , while the TiC skeleton still maintains the original organizational structure. Hot fatigue cracks began at the defective tips of the coating and propagated in the TiC-reinforced phase. The crack is a trans-granular fracture, which is the result of brittle rupture.

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“…However, the distribution of iron in Figure 6 decreases from bottom to top, which results from more iron being diffused into the cladding layer since higher laser power promotes more intensive elements diffusion. A higher laser power causes an increase in TiC melting and an increased possibility of nucleation, which creates smaller crystallite and increases the micro-hardness [ 19 , 20 , 21 ]. In addition, the scanning speed controls the amount of time the cladding powder is exposed to the laser beam.…”

Section: Resultsmentioning

confidence: 99%

Computational and Experimental Investigation of Micro-Hardness and Wear Resistance of Ni-Based Alloy and TiC Composite Coating Obtained by Laser Cladding

Lian

Zhang

et al. 2019

Materials

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The influence of processing parameters on the micro-hardness and wear resistance of a Ni-based alloy and titanium carbide (TiC) composite cladding layer was studied. Mathematical models were developed to predict the micro-hardness and wear resistance of the cladding layer by controlling the laser cladding processing parameters. Key processing parameters were the laser power, scanning speed, gas flow, and TiC powder ratio. The models were validated by analysis of variance and parameter optimization. Results show that the micro-hardness is positively correlated with laser power and TiC powder ratio, where the TiC powder ratio shows the most significant impact. The wear volume decreased with an increasing TiC powder ratio. The targets for the processing parameter optimization were set to 62 HRC for micro-hardness and a minimal volume wear. The difference between the model prediction value and experimental validation result for micro-hardness and wear volume were 1.87% and 6.33%, respectively. These models provide guidance to optimize the processing parameters to achieve a desired micro-hardness and maximize wear resistance in a composite cladding layer.

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TiC-Fe-Based Composite Coating Prepared by Self-Propagating High-Temperature Synthesis

Cited by 14 publications

References 15 publications

Microstructural Characterization of TiC–White Cast-Iron Composites Fabricated by In Situ Technique

Microstructural Characterization of TiC–White Cast-Iron Composites Fabricated by In Situ Technique

Corrosion and Thermal Fatigue Behaviors of TiC/Ni Composite Coating by Self-Propagating High-Temperature Synthesis in Molten Aluminum Alloy

Computational and Experimental Investigation of Micro-Hardness and Wear Resistance of Ni-Based Alloy and TiC Composite Coating Obtained by Laser Cladding

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