Fabrication, interfacial characterization and mechanical properties of continuous Al2O3 ceramic fiber reinforced Ti/Al3Ti metal-intermetallic laminated (CCFR-MIL) composite

Han, Yuqiang; Lin, Chunfa; Han, Xiaoxiao; Chang, Yunpeng; Guo, Chunhuan; Jiang, Fengchun

doi:10.1016/j.msea.2017.02.024

Cited by 66 publications

(15 citation statements)

References 38 publications

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“…Together, these two results suggest the strength of the fiber reinforced laminated composite is remarkably enhanced and the ductility is well maintained, which provides a feasible approach for solving the contradictory issue of strength and ductility. Similar studies were also formerly presented by Han et al [ 96 ] and Wang et al [ 97 ].…”

Section: Resultssupporting

confidence: 89%

“…Therefore, the strength of this layer is weakened dramatically. So theoretically, the material can be identified as failing when the plastic strain concentration comes into being in this layer [ 96 , 99 ]. Accordingly, the optimal ratio between the center distance of adjacent SiC fibers d 0 and fiber diameter d f is 4 in which the plastic strain ratio of the global material and the local position in the Al 3 Ti layer both drop significantly while the plastic strain concentration along the horizontal center line of the SiC fiber string between adjacent fibers has not yet come into being.…”

Section: Resultsmentioning

confidence: 99%

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Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

et al. 2018

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A novel silicon carbide (SiC) continuous ceramic fiber-reinforced (CCFR) Ti/Al3Ti Metal-Intermetallic-Laminate (MIL) composite was fabricated. A high-efficiency semi-analytical model was proposed based on the numerical equivalent inclusion method (NEIM) for analyzing the small-strain elasto-plastic contact in the early stage of the penetration process. The microstructure and interface features were characterized by the scanning electron microscopy (SEM). Quasi-static compression tests were performed to determine the contact response and validate the proposed model. A group of in-depth parametric studies were carried out to quantify the influence of the microstructure. The comparison between results under the sphere-plane and plane-plane contact load indicates that, under the first sphere-plane, the compressive strength and failure strain are both lower and the SiC reinforcement effect on strength is very clear while the effect on ductility is not clear. The maximum plastic strain concentration (MPSC) in the Al3Ti layer is closest to the upper boundary of the central SiC fiber and then extends along the depth direction as the load increases, which are also the locations where cracks may initiate and extend. Moreover, the CCFR-MIL composite shows better mechanical properties when the center distance between adjacent SiC fibers is four times the fiber diameter and the volume fraction of Ti is 40%.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

et al. 2018

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“…It suggested that the compressive strength and fracture strain of C f -Ti/Al 3 Ti MIL composite were slightly lower than that of Ti/Al 3 Ti MIL composite when the load is parallel to the layers. Similar phenomenon has also been found in our previous work, 20 in which continuous Al 2 O 3 fiber-reinforced Ti/Al 3 Ti MIL composite was produced via HP sintering process. The results demonstrated that the compressive performances of the composite have been improved due to the addition of Al 2 O 3 fiber along the perpendicular direction, while the opposite result occurred under the loading parallel to the layers.…”

Section: Introductionsupporting

confidence: 89%

“…21 Meanwhile, fiber reinforcements were usually shoved toward intermetallic centerline and weakly bonded with the intermetallic phases. 20 During fracture, cracks were always preferential to nucleate and propagate at the centerline and the interface between fiber and intermetallic, both of which are harmful to the mechanical performances of the composites. Recently, Wang et al 22,23 selected shape-memory alloy (SMA) titanium nickel (NiTi) fiber as reinforcement to introduce into Ti-Al MIL composite via foil metallurgical technique.…”

Section: Introductionmentioning

confidence: 99%

Effect of shape-memory alloy NiTi fiber on microstructure and mechanical properties of continuous ceramic Al₂O₃ fiber-reinforced Ti/Al₃Ti metal–intermetallic laminated composite

Han

Zhu

Yan

et al. 2020

Advanced Composites Letters

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Shape-memory alloy titanium nickel (NiTi) fiber was introduced into continuous ceramic aluminum oxide (Al2O3) fiber-reinforced titanium–titanium trialuminide metal–intermetallic laminated (CSMAFR-MIL) composite using vacuum hot pressing (HP) sintering method to improve the microstructure and mechanical properties of the composite. Scanning electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction techniques were employed to characterize the microstructure of the novel CSMAFR-MIL composite. Besides, the tensile tests were carried out on continuous Al2O3 fiber-reinforced Ti-Al metal–intermetallic laminated (CFR-MIL) composite and the CSMAFR-MIL composite to explore the influence of NiTi fiber additive on mechanical behavior of the CFR-MIL composite. The experimental results showed that the intermetallic layer including Al3Ti, Al3Ti0.8V0.2, Al3Ni intermetallics but without residual NiTi fiber was generated via the reactions of liquid Al with NiTi fiber and Ti foil during preparation. Moreover, owing to the addition of NiTi fiber, intermetallic centerline was prevented effectively to form in the CSMAFR-MIL composite. Moreover, the elemental diffusion occurred between the Al2O3 fiber and the intermetallic, revealing that the metallurgical bonding was formed during the fabrication process. Furthermore, the CSMAFR-MIL composite possessed higher strength and superior ductility than those of CFR-MIL composite attributed to the microstructure optimization.

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“…The strain at the apparent yield point is determined by the FeAl phase, while the stress at the apparent 26 yield point is affeced by the metallic/intermetallic ratio and work hardening of metallic layers. Ti-TiAl3/NiTi [34,35], Ti-TiAl3/SiC [36], Ti-TiAl3/NiTi/SiC [37], Ti-TiAl3/Al2O3 [38], Al-TiAl3 [39], Ti-TiAl3/TiB [40], Ti-TiB/La2O3 [41,42], Ti/Mg-NiTi/Ni2Al3/MnAl8/Mg2Al3 [43], Ni-Ni3Al/NiAl [15], Ni-Ni2Al3/NiAl3 [15], Ni/Ni3Ti/NiTi/NiTi2/Ti [44]). *Due to the lack of compression data, the tensile data of the composites is plotted instead.…”

Section: Compression Testsmentioning

confidence: 99%

Design, fabrication and characterization of FeAl-based metallic-intermetallic laminate (MIL) composites

et al. 2019

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FeAl-based MIL composites of various iron alloys were fabricated with an innovative "multiple-thin-foil" configuration and "two-stage reaction" strategy. Alternating stacked metal foils were reactive sintered via SPS at 600 o C and 1000 o C to grow intermetallics. The "multiple-thin-foil" configuration reduces reaction time, enables local chemical composition control and allows metal/intermetallic combinations, which cannot be produced via the conventional methods. Fe-FeAl, 430SS-FeAl, and 304SS-FeAl MIL composites can be synthesized with desired metallic/intermetallic ratios, where FeAl is the single intermetallic phase present in the composites. Microstructure analysis via SEM, EDS, and EBSD confirms phase identification and reveals the formation of transition layers. The transition layer, which incorporates the composition gradient between the metal (Fe, 430SS or 304SS) and the FeAl intermetallic phase, provides a gradual change in mechanical properties from the metal to intermetallic layers, and further functions as a chemical barrier into which other undesired intermetallics dissolve. Driven by diffusioncontrolled growth, grains in the transition layers and FeAl regions exhibit ordered arrangement and sintering textures. Hardness profiles from the metal layer to FeAl region 2 reveal the correlation between local mechanical properties and local chemical compositions. In compression testing, the compressive strength can reach 2.3 GPa with considerable plasticity, establishing the best mechanical properties of any MIL composites synthesized to date.Metal-intermetallic laminate (MIL) composites are produced via incorporating layers of ductile metals into strong, but brittle intermetallics for optimizing mechanical behaviors.Generally, aluminide-intermetallics possess ordered crystalline structures with high specific modulus and high specific compressive strength, but often very limited plasticity or toughness. Reinforcing these intermetallics with particles, fibers or layers of ductile metals can enhance the toughness [1], making the materials more efficient for structural applications.MIL composites are typically synthesized via hot pressing alternating stacked metal foils so that intermetallic layers form as the result of interdiffusion and chemical reaction, while an appropriate pressure ensures intimate contact between the sheets of metal foils. The selection of the foil composition and thickness can determine the physical and mechanical properties of the MIL composites so that the specific performance requirements can be 3 fulfilled. The ability to tailor composite microstructure, and the low cost of the initial metallic foils make MIL composites ideal as commercially scalable structural materials, suitable for aerospace applications that require lightweight materials with high specific properties. By tuning the geometry of the initial metal foils, MIL composites can be synthesized into complex shapes, such as rods, tubes or cones, for specific platforms. In addition, multi-functionality can be incorporated...

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Fabrication, interfacial characterization and mechanical properties of continuous Al2O3 ceramic fiber reinforced Ti/Al3Ti metal-intermetallic laminated (CCFR-MIL) composite

Cited by 66 publications

References 38 publications

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

Effect of shape-memory alloy NiTi fiber on microstructure and mechanical properties of continuous ceramic Al₂O₃ fiber-reinforced Ti/Al₃Ti metal–intermetallic laminated composite

Design, fabrication and characterization of FeAl-based metallic-intermetallic laminate (MIL) composites

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Fabrication, interfacial characterization and mechanical properties of continuous Al2O3 ceramic fiber reinforced Ti/Al3Ti metal-intermetallic laminated (CCFR-MIL) composite

Cited by 66 publications

References 38 publications

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

Effect of shape-memory alloy NiTi fiber on microstructure and mechanical properties of continuous ceramic Al2O3 fiber-reinforced Ti/Al3Ti metal–intermetallic laminated composite

Design, fabrication and characterization of FeAl-based metallic-intermetallic laminate (MIL) composites

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Effect of shape-memory alloy NiTi fiber on microstructure and mechanical properties of continuous ceramic Al₂O₃ fiber-reinforced Ti/Al₃Ti metal–intermetallic laminated composite