2022
DOI: 10.3390/ma15176062
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Synthesis of NiAl Intermetallic Compound under Shock-Wave Extrusion

Abstract: This paper presents the implementation of the first stage of a study on the synthesis of the intermetallic compound in the Ni-Al system under shock-wave extrusion (SWE). A method was developed and experiments involving SWE of the reactive Ni–Al powder mixture were carried out. As a result, it was possible to obtain up to 56 vol.% of the final product and achieve 100% synthesis of NiAl. The results of metallographic analysis indicate that the process of high-velocity collapse of the tube created conditions for … Show more

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Cited by 3 publications
(2 citation statements)
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“…MIL composites based on Ni and Al are given an increased attention due to the favorable properties of nickel aluminides, in particular, high elastic modulus and microhardness, low density, and high heat resistance. Besides, nickel aluminides have high wear and oxidation resistance [5][6][7][8]. These features make Ni-Al-based MIL composites an attractive material for producing housing elements for gas turbine engines, large vessels and pipes operating under high pressure, heat-exchange elements in cryogenic, chemical and energy equipment.…”
Section: Introductionmentioning
confidence: 99%
“…MIL composites based on Ni and Al are given an increased attention due to the favorable properties of nickel aluminides, in particular, high elastic modulus and microhardness, low density, and high heat resistance. Besides, nickel aluminides have high wear and oxidation resistance [5][6][7][8]. These features make Ni-Al-based MIL composites an attractive material for producing housing elements for gas turbine engines, large vessels and pipes operating under high pressure, heat-exchange elements in cryogenic, chemical and energy equipment.…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, to produce metal-intermetallic-ceramic laminate composites (which are layered materials based on NiAl and titanium carbide with a metal), an SHS process is conducted in a reactor under a pressure of 13 MPa in an atmosphere of argon [29]. Moreover, MIL composites can be produced through the SHS mode and explosive welding [30][31][32]. A common difficulty in the production of MIL composites is the significant differences in the physical and mechanical properties between the matrix material and the reinforcing element [21,23].…”
Section: Introductionmentioning
confidence: 99%