NiAl–TiC–Al2O3 composite formed by self-propagation high-temperature synthesis process: Combustion behaviour, microstructure, and properties

Riyadi, Tri Widodo Besar; Zhang, Tao; Marchant, Denis; Zhu, Xingji

doi:10.1016/j.jallcom.2019.04.349

Cited by 32 publications

(14 citation statements)

References 37 publications

(46 reference statements)

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“…These disadvantages are corrected by reducing the grain size of NiAl and creating defects in the crystal lattice by mechanical treatment [18,19]. The mechanical properties can also be improved by introducing WC, TiC, or TiB 2 into NiAl [20,21].…”

Section: Introductionmentioning

confidence: 99%

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

Denisov,

Seropyan,

Malakhov

et al. 2023

Materials

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A functionally graded composite NiAl-AlMg6 was prepared using the pressure of gaseous reaction products (impurity gases) produced during the synthesis of reactive powders in a sealed reactor. It has been shown that this method can be used to prepare a NiAl/AlMg6 composite with both chaotically oriented pores in the NiAl layer and unidirectionally oriented pores (lotus-type pores). The pore shape in NiAl was found to be dependent on the pressure of the impurity gases and hydrogen present in the starting titanium powder. A mechanism for pore formation in NiAl and AlMg6 composite during SHS is proposed. Thus, functionally graded high-temperature composites can be produced by SHS in a sealed reactor using the chemical reaction energy and the pressure of impurity gases and hydrogen. Additionally, minimizing the influence of impurity gases on the contact zone increases the interface area between NiAl and AlMg6.

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Section: Introductionmentioning

confidence: 99%

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

Denisov,

Seropyan,

Malakhov

et al. 2023

Materials

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“…In view of this, low-density NiAl-based alloys with approximately 2/3 the density of nickel-based alloy [3] are now being used as a replacement for nickel-based alloys in structural materials. This is because of their high resistance to oxidation at high temperatures, high thermal conductivity, high modulus of elasticity and high melting point [4][5][6]. Nevertheless, the low strength experienced by NiAlbased alloy at temperatures higher than 850 ℃ [7,8], and the low plasticity reported at temperatures lower than 0.45 Tm are some of the limitations that prevent the widespread use of the alloy.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the effects of Zr and Co addition on the properties of NiAl-Mo(Cr) alloy

Salifu

Olubambi

2022

MATEC Web Conf.

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The introduction of computational modelling during alloy development has significantly reduced the cost of production and the prolonged time spent by researchers doing trials and errors in the laboratory. In this study, computational software (JMat Pro) was used to simulate the effect of the addition of Zr and Co, on the material properties of NiAl-Mo(Cr) alloy such as the elastic modulus, hardness, thermal conductivity, bulk modulus and specific heat capacity. A significant improvement in the mechanical properties was observed in the developed alloys as compared to those without Zr and Co. Also, the addition of as low as 0.5 at. % Zr and 1.0 at. % Co to NiAl-Cr(Mo) resulted in improved compressive strength and plasticity of the alloy.

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“…With the use of Ni, Al, B, and Zr or Ti elemental powders as raw materials, Çamurlu and Maglia [14] synthesized ZrB 2 -NiAl and TiB 2 -NiAl composites using the SHS technique and reported a considerable increase in the hardness of NiAl with the addition of boride phases. Riyadi et al [15] employed induction heating as the ignition source to initiate the SHS reaction between Ni, Al, C, and TiO 2 powders for the production of a NiAl-TiC-Al 2 O 3 composite. They found an increase in the ignition temperature from 813.3 to 1133.4 K with an increasing TiO 2 /Al/C content and an improvement in the hardness of the final products containing 30-40 wt% of TiC and Al 2 O 3 particles [15].…”

Section: Introductionmentioning

confidence: 99%

Intermetallic/Ceramic Composites Synthesized from Al–Ni–Ti Combustion with B4C Addition

Yeh

2020

Metals

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The fabrication of intermetallic/ceramic composites by combustion synthesis in the mode of self-propagating high-temperature synthesis (SHS) was investigated in the Al–Ni–Ti system with the addition of B4C. Two reaction systems were employed: one was used to produce the composites of xNiAl–2TiB2–TiC with x = 2–7, and the other was used to synthesize yNi3Al–2TiB2–TiC with y = 2–7. The reaction mechanism of the Al–Ni–Ti system was strongly influenced by the presence of B4C. The reaction of B4C with Ti was highly exothermic, so the reaction temperature and combustion velocity decreased due to increasing levels of Ni and Al in the reactant mixture. The activation energies of Ea = 110.6 and 172.1 kJ/mol were obtained for the fabrication of NiAl- and Ni3Al-based composites, respectively, by the SHS reaction. The XRD (X-ray diffraction) analysis showed an in situ formation of intermetallic (NiAl and Ni3Al) and ceramic phases (TiB2 and TiC) and confirmed no reactions taking place between Ti and Al or Ni. The microstructure of the product revealed large NiAl and Ni3Al grains and small TiB2 and TiC particles. With the addition of TiB2 and TiC, the hardness of NiAl and Ni3Al was considerably increased and the toughness was also improved.

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NiAl–TiC–Al2O3 composite formed by self-propagation high-temperature synthesis process: Combustion behaviour, microstructure, and properties

Cited by 32 publications

References 37 publications

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

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

Simulation of the effects of Zr and Co addition on the properties of NiAl-Mo(Cr) alloy

Intermetallic/Ceramic Composites Synthesized from Al–Ni–Ti Combustion with B4C Addition

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