In situ synchrotron X-ray diffraction study of reaction routes in Ti-Al3Ti-based composites: The effect of transition metals on L12 structure stabilization

Lazurenko, Daria V.; Лозанов, В. В.; Stark, Andreas; Pyczak, Florian; Ruktuev, Alexey A.; Émurlaev, K. I.; Song, Lin; Батаев, И. А.; Иванов, И. А.; Ogneva, Tatiana S.; Батаев, А. А.

doi:10.1016/j.jallcom.2021.160004

Cited by 11 publications

(1 citation statement)

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“…These composites are prepared using various intermetallic compound systems such as Fe-Al [2], Ti-Al [3], and Ni-Al [4]. Among these systems, Ti-Al 3 Ti MIL composites exhibit low density, high modulus of elasticity, and exceptional high-temperature properties, making them promising materials for hightemperature-resistant structural applications [5][6][7][8]. In 2001, Vecchio [9] created MIL-layered composites using Ti-Al plates stacked on top of each other in an air environment and reacted through sintering.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Properties of Ti/Al Laminated Composite Reinforced by High-Entropy Alloy Particles

Wang

Kang

et al. 2023

Metals

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Novel HEAp-Ti/Al laminated composites embedded with particles of the high-entropy alloy Al0.5CoCrFeNi (HEA) were fabricated by vacuum hot-press sintering at 730 °C. The phase composition and microstructure of the composites were studied with X-ray diffractometer (XRD), scanning electron microscope SEM, energy dispersive spectrometer (EDS), transmission electron microscope (TEM), and electron backscattering diffraction (EBSD) techniques. At this temperature, it has been observed that Al3Ti intermetallic compound is the favored phase and the reaction results in the dispersion of Al3Ti in the original Al layer. A large number of interfaces are formed between Al3Ti and Al. The deformed Al3Ti grains are concentrated in the interface near the Ti side. The mechanical properties, including tensile and compressive properties at room temperature, were analyzed. The tensile test results indicate that the composite exhibited an average tensile strength of 258 MPa and an average yield strain of 9.86%. Compression test results show that when a load perpendicular to the layer is applied, the yield strain and yield stress of the material are 9.67% and 474.09 MPa, respectively. Moreover, under a load parallel to the layer, the material fails due to interfacial debonding.

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