Fabrication and mechanical properties of in situ TiC/Ti metal matrix composites

Liu, Yanbin; Liu, Yong; Tang, Huiping; Wang, Bin; Liu, Bin

doi:10.1016/j.jallcom.2010.12.086

Cited by 34 publications

(10 citation statements)

References 24 publications

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“…A similar behavior is observed during the synthesis of in-situ TiC particle reinforced 316 L stainless steel matrix composites using the selective laser melting technique (SLM), where sub-stoichiometric TiC y is formed due to the reaction of titanium and carbon powders [27]. Despite these well-known relationships with respect to the solid-state reaction behavior between titanium and carbon, however, most reported studies dealing with TiC particle-reinforced TMCs assume the formation of stoichiometric TiC according to reactions (2) and (3), and further not considering the influences of the real TiC particle stoichiometry. For instance, Lu et al [28] and Wang et al [29] investigate the influence of the TiB:TiC ratio adjustment on the mechanical properties of particle-reinforced TMCs that were processed by liquid-solid reactions between titanium alloys and B 4 C and/or graphite, which served as reactive powders.…”

Section: Temperature Inmentioning

confidence: 99%

“…In recent decades, materials research has increasingly focused on the development of titanium matrix composites (TMCs) due to their outstanding properties-combining high specific strength, specific stiffness, and hardness with heat-and/or corrosion resistance [1][2][3][4]. An effective method for improving the properties of titanium or titanium alloy-based composite materials is their reinforcement through the introduction of ceramic particles.…”

Section: Introductionmentioning

confidence: 99%

“…The composition of non-stoichiometric TiC y extends from TiC 0.47 to TiC 0.97 [23,24]. However, with respect to reactions (2) and (3), very little information is available in the literature regarding the actual stoichiometry of the TiC particle reinforcement within the TMCs. Considering the equilibrium Ti-C phase diagram within the typical temperature range applied for the solid-state reactions, where β-Ti and TiC y or TiC y and carbon (graphite) exist next to each other (~920 • C < T <~1646 • C), the titanium carbide compositions at the β-Ti/TiC y and TiC y /C interfaces are listed in Table 1 [25,26]: Table 1.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

Grützner

Krüger

Radajewski

et al. 2018

Metals

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Abstract:In-situ TiB/TiC particle-reinforced titanium matrix composites (TMCs) based on a near-β Ti-5Al-5Mo-5V-3Cr alloy (Ti-5553) were synthesized by solid-state reaction with B 4 C and graphite particles during spark plasma sintering (SPS). In this study, investigations were focused on the influence of the molar TiB:TiC ratio on the mechanical properties of the composites. With respect to the adjustment of the molar TiB:TiC ratio, the formation of stoichiometric TiC or nonstoichiometric TiC y was considered as the literature provides conflicting information in this respect. Furthermore, the solid-state reaction behavior influenced by the matrix alloying elements is discussed in comparison to a pure titanium matrix. The hardness, compressive strength and bending strength of the TMCs were improved successfully due to the TiB and TiC particles maintaining acceptable levels of ductility. However, X-ray diffraction experiments revealed that for the adjustment of the molar TiB:TiC ratio, the stoichiometry of the TiC y particles formed must be considered as nonstoichiometric TiC 0.5 resulted from the solid-state reaction of carbon and titanium. Compared to TMCs with pure titanium matrices, more sluggish solid-state reaction kinetics were observed. This was attributed to the matrix alloying elements molybdenum, vanadium and chromium, which formed solid solutions within the reinforcing particles.

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Section: Temperature Inmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

Grützner

Krüger

Radajewski

et al. 2018

Metals

View full text Add to dashboard Cite

show abstract

“…To improve the mechanical properties of Ti alloys, a series of Ti alloy matrix composites (TMCs) have been developed which exhibit higher specific strength, specific stiffness, wear resistance, thermal stability, and high-temperature durability than conventional Ti alloys 3 . Normally, TMCs are produced by ex situ techniques in which the reinforcements are prepared separately prior to the composite fabrication 4 , 5 , while in situ techniques synthesize the reinforcements during the fabrication of the composites 6 – 11 . Compared to ex situ TMCs, in situ TMCs exhibit finer grain sizes, more homogeneous distribution of reinforcements, and cleaner interfaces, leading to enhanced mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and mechanical properties of in situ TiC–β–Ti–Nb composites with ultrafine grains fabricated by high-pressure sintering

Liu

Zhang

Gong

et al. 2018

Sci Rep

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In this study, an in situ β–Ti–Nb composites reinforced with TiC particles with an ultrafine grain size were fabricated using a powder metallurgical (PM) method. The microstructures and mechanical properties of the composites were characterized using X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and compression tests. TiC particles were formed in the ball-milled powders after annealing at 600 °C due to a chemical reaction between stearic acid and titanium. Using high-pressure sintering (HPS) on an apparatus with six tungsten carbide anvils, a fully dense β–Ti–Nb composite reinforced with fine in situ TiC particles was obtained. The TiC particles exhibit particle sizes of ~500 nm, uniformly distributed in the composite matrix, which had grain sizes of ~600 nm. Thus, the TiC–β–Ti–Nb composite show very high compression yield strength and relatively high plasticity contributed by grain refinement and TiC particles strengthening. The composite with 45 vol.% TiC exhibited excellent mechanical properties, with a yield compressive strength of 1990 MPa and plastic strain of 9.12%. More over, a modified rule-of-mixture (ROM) was presented to describe the combined strengthening effect of grain refinement and TiC particles.

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“…The in-situ process route is regarded as the priority to produce particle-reinforced titanium matrix composites (PRTMCs) [1]. Various in-situ preparation means, e.g.…”

Section: Introductionmentioning

confidence: 99%

The Formation of Ti3Alp/Ti-6Al-4V Surface Layer via Additive Friction Stir Processing Method

Li¹

2017

dtmse

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Abstract. A Ti3Alp/Ti composite structure was prepared as the surface layer on Ti-6Al-4V alloy substrate via Additive Friction Stir Processing method, by the coupled thermal-mechanical effect and the Ti/Al in-situ reaction mechanism. The post composition homogenization annealing was employed. The reinforcements of Ti-Al intermetallic particles benefited the surface-hardening and anti-wear performance. Formation mechanism and strengthening effect were further elucidated. IntroductionThe in-situ process route is regarded as the priority to produce particle-reinforced titanium matrix composites (PRTMCs) [1]. Various in-situ preparation means, e.g. laser surface melting (LSM), are applied to fabricate PRTMCs as the surface layer structure on the material [2]. However, the extra high processing temperatures could easily generate the melting-solidification induced metallurgical defects, such as cold cracks, pores, dendritic grain coarsening, reinforcement dissolution and harmful interfacial reactions. Thus, the solid-state processing methods to fabricate PRTMCs surface layer, in the absence of Ti-matrix melting, are strongly motivated to develop.The addition of other materials into substrates via Friction Stir Processing (FSP) can also be called as Additive Friction Stir Processing (AFSP) [3]. It is performed on the principle of the Friction Stir Welding and/or Processing (FSW/P), which is well-known as an attractive processing technique [4]. The FSW for Ti-alloys was well researched [5]. In this work, it is the aim to utilize the AFSP and Ti/Al in-situ reaction mechanisms to prepare the Ti3Alp/Ti surface composites.

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Fabrication and mechanical properties of in situ TiC/Ti metal matrix composites

Cited by 34 publications

References 24 publications

Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

Characterization of In-Situ TiB/TiC Particle-Reinforced Ti-5Al-5Mo-5V-3Cr Matrix Composites Synthesized by Solid-State Reaction with B4C and Graphite through SPS

Microstructures and mechanical properties of in situ TiC–β–Ti–Nb composites with ultrafine grains fabricated by high-pressure sintering

The Formation of Ti3Alp/Ti-6Al-4V Surface Layer via Additive Friction Stir Processing Method

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