Nimonic

Nimonic

 

the generic name for a group of nickel-based heat-resistant alloys that contain chromium, titanium, and aluminum. They were first developed in Great Britain (by the Mond Nickel Company, 1941–42), where several types of nimonics are being produced. The alloys may contain 10–21 percent Cr, 0.2–4.0 percent Ti, and 0.5–6.0 percent Al, depending on their purpose. Nimonics are also alloyed with cobalt (up to 22 percent), molybdenum (up to 6 percent), and other elements. The melting point of the alloys is 1310°–1390°C, depending on chemical composition. The better grades of nimonics are usable at temperatures up to 1000°C. The alloys lend themselves satisfactorily to hot pressure shaping and, to a lesser degree, to cold working. They are manufactured in the form of forgings, rods, sheets, and tubing and are being used for parts of gas-turbine engines and rockets. Soviet analogs of nimonics are types KhN55VMTFKIu and KhN80TBIu; American analogs are called inconels.

REFERENCES

Betteridge, W. Zharoprochnye splavy tipa nimonik. Moscow, 1961. (Translated from English.)
Khimushin, F. F. Zharoprochnye stali i splavy, 2nd ed. Moscow, 1969.

L. L. ZHUKOV

References in periodicals archive ?
Lee Spring offer Nickel Cobalt, Nickel Titanium, Monel, Titanium, Inconel, Nimonic, Hastelloy and Elgiloy alloys.
Tenders are invited for Supply of nimonic c263 nickel based super alloy
It is obvious from Figure 2 that very few research works have been reported on WEDM of nimonic 263.
Speliotis, "Joining of C/SiC Ceramics to Nimonic Alloys," Journal of Materials Engineering and Performance, vol.
The simulation makes use of Nimonic 263 alloy, TiO, Ti[O.sub.2] and [Ti.sub.2][O.sub.3] as the flux.
Datta, "Studies of high temperature sliding wear of metallic dissimilar interfaces IV: Nimonic 80A versus Incoloy 800HT," Tribology International, vol.
The company's products, which include brands such as Inconel, Nimonic, Udimet and Mone, are engineered to offer a combination of heat resistance, corrosion resistance, strength and toughness in some of today's most technically demanding industries and applications.
This was very close to Whittle's original design concept, though with Rolls-Royce Nimonic turbine blades.
MNLR-based modeling of wear of PVD TiN/TiCN/TiN-coated carbide insert in the machining of a nimonic C-263 nickel-base alloy resulted in validation-based [R.sup.2] values of 69.5% for an exponential model and 99.9% for a polynomial model as a function of cutting speed, coolant concentration, depth of cut, and feed rate [20].
The materials in this group are for example Rene, Waspaloy, Nimonic and so on.
[11] tested Nimonic C-263 beam specimen coated with aluminium oxide under different excitation levels and proposed an experimental procedure for extracting the coating's damping (internal friction) and the modulus of elasticity with the variation of strain from response decays.