In-Situ Manufacturing of NiAl-TiC Composites with Three Dimensional (3D) Discrete Particular Network and Bi-Continuous Microstructures

Combustion synthesis of NiAl/TiC composite from mechanically activated elemental powders

“…The XRD spectra of as-mixed powder before and after combustion synthesis are shown in Fig. 1 has been reported by Saadati et al [1], Rahaie et al [9], and Zhu et al [27].…”

“…Nickel aluminides, especially NiAl, have been attracted many interests in industrial applications due to their wonderful properties such as wide composition range, high melting point, high oxidation, and hot corrosion resistance at high temperatures and low density [1][2][3][4][5]. Also, NiAl has good tribological properties [6,7]; however, sole NiAl materials contain low toughness and poor ductility at ambient temperature and poor strength and creep resistance at high temperatures which restricts its hightemperature applications [8,9]. Based on previous studies, the reduction of crystallite and particle sizes of NiAl [4,[10][11][12] and fabrication of In-situ composite [13,14] can improve the mechanical properties of NiAl.…”

“…Many efforts have been devoted to developing a nano-crystalline reinforced nickel aluminide which one of them is reinforcing NiAl by a reinforcement(s) (as second phases) like ceramic materials. For instance, NiAl-WC [8], NiAl-WC-Al 2 O 3 [13], NiAl-TiC [9,14,15], NiAl-TiB 2 [16], NiAl-ZrC [17], NiAl-Al 2 O 3 [18], NiAl-TiN/TiB 2 [19] composites have been studied. Because of low density, high hardness, high modulus of elasticity and high-temperature stability, titanium carbide (TiC) is a promising candidate as reinforcement [20][21][22].…”

Preparation of NiAl-AlMg6 Functionally Graded Composite Using the Energy of a Highly Exothermic Ti-C Mixture during Self-Propagating High-Temperature Synthesis

“…The structure and shape of the pores affect the characteristics of NiAl [13]. Multidirectional porosity in NiAl leads to disadvantages such as low viscosity and ductility at room temperature, as well as low strength and creep resistance at high temperatures [17]. These disadvantages are corrected by reducing the grain size of NiAl and creating defects in the crystal lattice by mechanical treatment [18,19].…”