Fabrication, mechanical properties and damping capacity of shape memory alloy NiTi fiber-reinforced metal–intermetallic–laminate (SMAFR-MIL) composite

Wang, Enhao; Guo, Chunhuan; Zhou, Peijun; Lin, Chunfa; Han, Xiaoxiao; Jiang, Fengchun

doi:10.1016/j.matdes.2016.01.130

Cited by 59 publications

(10 citation statements)

References 33 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%

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%

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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“…Shape memory alloys (SMAs) have attracted considerable interest for many applications in biomedical, civil, automotive and aerospace industries [1][2][3][4][5][6] due to their unique capabilities to recover large deformations, generate high stress, and high damping capacity [7][8][9][10]. It is known that the martensitic transformation in SMAs can be induced by thermal cycling and by applied stress.…”

Section: Introductionmentioning

confidence: 99%

Tensile shape memory behavior of Ni50.3Ti29.7Hf20 high temperature shape memory alloys

et al. 2016

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The effects of heat treatment on the shape memory characteristics of a polycrystalline Ni 50.3 Ti 29.7 Hf 20 alloy were studied via thermal cycling under stress and isothermal stress cycling experiments in tension. It was revealed that transformation temperatures could be increased above 100 °C with aging at temperature above 500 °C and in particular were stabilized against stress-free thermal cycling after aging at 500 °C. Recoverable strain of ~5% was observed for the as-extruded samples and decreased to ~4% after aging due to the formation of non-transformable precipitates. The aged alloys demonstrated near perfect shape memory effect under tensile stresses as high as 700 MPa and perfect superelasticity at temperatures up to 230 °C. Finally, the tension-compression asymmetry observed in NiTiHf alloys was discussed.

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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, mechanical properties and damping capacity of shape memory alloy NiTi fiber-reinforced metal–intermetallic–laminate (SMAFR-MIL) composite

Cited by 59 publications

References 33 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

Tensile shape memory behavior of Ni50.3Ti29.7Hf20 high temperature shape memory alloys

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

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