Nimonic alloys

Various expressions have been derived from which corresponding rates for alloys can be calculated. AH these procedures are based on calculating an effective value for the chemical equivalent of the alloy. Thus for Nimonic 75, a typical nickel alloy used in the aircraft industry, a chemical equivalent of 25.1 may be derived (4). The Nimonic alloy is given to have, on a basis of wt %, 72.5 Ni, 19.5 Cr, 5.0 Ee, 0.4 Ti, 1.0 Si, 1.0 Mn, and 0.5 Cu (see Nickel and... 

The Nimonic Alloys, 2nd edition. W. Betteridge and J. Heslop, Arnold, 1974. 

Betteridge, W. and Heslop, J. (1974) in The NIMONIC Alloys and other Ni-Based High Temperature Alloys 2nd Edition, (Edward Arnold Ltd, 1974). 

Once cleaned, the artefact, if it was a gun-barrel, was secured onto a stainless steel base (Figure 12) and the Nimonic alloy retort clamped down over it so as to ensure an airtight seal. 

Nimonic alloys 1100 High Creep and erosion problems... 

Solid solution alloys are readily fusion welded, normally in the annealed condition. Some noteworthy examples of solid solution alloys are Ni 200, the Monel 400 series, the Inconel 600 series, the Incoloy 800 series, Hastelloys and some Nimonic alloys such as 75, and PE 13. Because the HAZ does not harden, heat treatment is not usually required after welding. Precipitation hardened alloys may be susceptible to postweld heat-treatment (PWHT) cracking. Some of these alloys are the Monel 500 series. Inconel 700 series, Incoloy 900 series, and most of the Nimonic alloys. 

Fig. 3.81 Fatigue limit vs. temperature of steels (ferritic, martensitic or austenitic), nimonic alloys, aluminum alloys and copper...

Betteridge, W. The Nimonic Alloys. Edward Arnold, London (1959)... 

TBC system [74]. Das et al. [75] studied the oxidation behavior of a TBC system consisting of 8 wt% YSZ top coat, Ba0-Mg0-Si02-based glass-ceramic bond coat, and nimonic alloy (AE 435) substrate wherein static oxidation test was carried out at 1,200°C for 500 h in air. Oxidation resistance of this TBC system was compared with the conventional TBC system under identical heat treatment conditions. Both TBC systems were characterized by SEM, as well as EDS analysis. The TGO layer was not found between the bond coat and the top coat in the case of glass-ceramic bonded TBC system, while the conventional TBC system showed a TGO layer of -16 pm thickness at the bond coat-top coat interface [75]. 

Das S, Datta S, Basu D, Das GC. Thermal cyclic behavior of glass-ceramic bonded thermal barrier coating on nimonic alloy substrate. Ceramics International. 2009 35 2123-2129. 

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