Characteristics of laser clad α-Ti/TiC+(Ti,W)C 1−x /Ti 2 SC+TiS composite coatings on TA2 titanium alloy

Zhai, Yong-Jie; Liu, Xiubo; Qiao, Shi-Jie; Wang, Mingdi; Lu, Xiaoqing; Wang, Yongguang; Chen, Yao; Liu, Ying

doi:10.1016/j.optlastec.2016.09.044

Cited by 42 publications

(12 citation statements)

References 27 publications

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“…Furthermore, in the Ti-rich molten pool, once solid-state TiS was precipitated, it would then react with the Ti element enriched in the surrounding and form interfering phases of Ti 2 S. Nevertheless, no corresponding diffraction peaks for TiS and Ti 2 S appeared in the XRD, which demonstrated that TiS and Ti 2 S did not effectively synthesize in the coating. A similar phenomenon was also found in the work of Zhai et al [25] during the preparation process of Ti 2 SC using laser-cladding technology, where they discovered that Ti 2 SC was synthesized by the reaction between solid-state TiC and the liquid-state Ti and S elements in the Ti-S-C material system.…”

Section: Microstructural Characterizationsupporting

confidence: 79%

“…Ti 2 SC is a ternary layered ceramic M n+1 AX n phase with high elastic modulus, shear modulus, and melting point as well as superb yield strength and thermal stability [24]. Furthermore, Ti 2 SC is often used as a self-lubricating phase in the coating because of its typical layered structure [25]. According to the XRD results, the diffraction peak strength of Ti 2 SC gradually increased with the rise in the Ni-MoS 2 addition in the coatings, indicating that the content of Ti 2 SC was increased, which was beneficial to improving the anti-friction properties of the coating.…”

Section: Phase Compositionmentioning

confidence: 99%

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Microstructure and Tribological Properties of Lubricating-Reinforcing Laser Cladding Composite Coating with the Ti2SC-Ti2Ni Mosaic Structure Phase

et al. 2022

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Lubricating-reinforcing composite coatings were successfully prepared on Ti6Al4V using laser-clad Ti6Al4V/Ni60/Ni-MoS2 mixed powders with different Ni-MoS2 contents (25, 35, and 45 wt.%), and their microstructure and tribological properties were studied. The reinforcing phase TiC, Ti2Ni, and the lubricating phase Ti2SC were in situ precipitated while Ti2SC and Ti2Ni formed a mosaic coherent structure within the above three coatings. In the 25 and 45 wt.% Ni-MoS2 coatings, the microstructure distribution uniformity of the coatings was not effectively improved by the Ti2SC-Ti2Ni mosaic structure phase due to the lower or higher content of Ti2SC. In the 35 wt.% Ni-MoS2 coating, the forming quality of the coating was the best due to an appropriate amount of the uniformly distributed Ti2SC-Ti2Ni mosaic structure phase. Furthermore, the microhardness of the coatings gradually decreased as the amount of Ni-MoS2 increased. In the 35 wt.% Ni-MoS2 coating, due to the uniformly and diffusely distributed Ti2SC-Ti2Ni mosaic structure phase, the stable lubricating-reinforcing mosaic structure transfer composite films were formed during the progress of the friction and wear tests, which led to the optimal worn surface evenness and quality, the anti-friction and the wear resistance properties compared with the Ti6Al4V, 25 and 45 wt.% Ni-MoS2 coating.

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Section: Microstructural Characterizationsupporting

confidence: 79%

Section: Phase Compositionmentioning

confidence: 99%

Microstructure and Tribological Properties of Lubricating-Reinforcing Laser Cladding Composite Coating with the Ti2SC-Ti2Ni Mosaic Structure Phase

et al. 2022

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“…There is an increasing intent on enhancing the surface properties of Ti alloys in general by utilizing the LBAM processes (Szost et al, 2016). In different trials self-lubricating composite coatings were deposited on Ti alloys by using LMD and such additions on Ti alloys resulted in friction reduction and improved anti-wear characteristics (Candel et al, 2010;Feng et al, 2012;Weng et al, 2015;Zhai et al, 2017). However, powder is preplaced on the substrate, rather than being injected in the laser-induced melt pool, in most of the mentioned applications.…”

Section: Aerospace Automotive and Power Generationmentioning

confidence: 99%

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

et al. 2019

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Laser-based additive manufacturing (LBAM) is a versatile manufacturing technique, extensively adopted to fabricate metallic components of enhanced properties. The current review paper provides a critical assessment of the fabricated metallic coatings and parts through LBAM-processes [e.g., laser metal deposition (LMD) and selective laser melting (SLM)] for high temperature tribological applications. A succinct comparison of LBAM-fabrication and conventional manufacturing is given. The review provides an insight into the sophisticated application-driven material design for high temperature tribological contacts. The review highlights the major mechanisms behind the improvement in the tribology of the laser-deposits; properties evolving as a consequence of the microstructure, lamellar solid lubricants, sulfides, soft metals, lubricious oxides, and self-lubricating surfaces.

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“…Laser melting deposition technology is also called laser cladding (LC), which uses a high-power laser to melt powder and/or wire, and substrate together to obtain a cladding layer with good metallurgical bonding performance [ 2 , 27 ]. Due to the high-quality characteristics of low porosity, low dilution ratio, and crack-free, laser cladding has been widely used to prepare various high-performance composite cladding layers [ 28 ]. In addition to improving material performance, laser cladding can also repair material surface defects, which is also the focus of material research in recent years [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

Dai

Guo

et al. 2021

Materials

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We prepared three kinds of Ni based alloy cladding coatings on 316L stainless steel at different power levels. The microstructure of the cladding layer was observed and analyzed by XRD, metallographic microscope, and SEM. The hardness of the cladding layer was measured, and the wear resistance of it was tested by a friction instrument. The results show that the effect of laser cladding is good, and it has good metallurgical bonding with the substrate. Different microstructures such as dendritic and equiaxed grains can be observed in the cladding layer. With the increase in laser power, more equiaxed and columnar dendrites can be observed. The phase composition of the cladding layer is mainly composed of γ–Ni solid solution and some intermetallic compounds such as Ni3B, Cr5B3, and Ni17Si3. The results of EDS show that there are some differences in the distribution of C and Si between dendrites. The hardness of the cladding layer is about 600 HV0.2, which is about three times of the substrate (~200 HV0.2). Through the analysis of the wear morphology, the substrate wear is serious, there are serious shedding, mainly adhesive wear, and abrasive wear. However, the wear of the cladding layer is slight, which is abrasive wear, and there are some grooves on the surface.

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Characteristics of laser clad α-Ti/TiC+(Ti,W)C 1−x /Ti 2 SC+TiS composite coatings on TA2 titanium alloy

Cited by 42 publications

References 27 publications

Microstructure and Tribological Properties of Lubricating-Reinforcing Laser Cladding Composite Coating with the Ti2SC-Ti2Ni Mosaic Structure Phase

Microstructure and Tribological Properties of Lubricating-Reinforcing Laser Cladding Composite Coating with the Ti2SC-Ti2Ni Mosaic Structure Phase

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

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