Development of New Intermediate Nickel Alloys for Application in Automotive Valves of High Performance Engines 2013-01-1153
UNS N07751 and UNS N07080 alloys are commonly applied for
automotive valve production for high performance internal
combustion engines. These alloys present high hot resistance to
mechanical strength, oxidation, corrosion, creep and
microstructural stability. However, these alloys present low wear
resistance and high cost due to the high nickel contents. In this
work it is presented the development of two new nickel intermediate
alloys for application in automotive high performance valves that
are alternatives to the alloys UNS N07751 and UNS N07080.
The new developed alloys are based on a high nickel chromium
austenitic matrix with dispersion of γ' and γ'' phases
and containing different NbC contents. Due to the nickel content
reduction in the developed alloys in comparison with the current
used alloys, the new alloys present an economical advantage for
substitution of these traditional Ni-based alloys, once the new
alloys present similar to better properties than UNS N07751 and UNS
N07080 alloys.
Citation: Farina, A., Liberto, R., and Barbosa, C., "Development of New Intermediate Nickel Alloys for Application in Automotive Valves of High Performance Engines," SAE Technical Paper 2013-01-1153, 2013, https://doi.org/10.4271/2013-01-1153. Download Citation
Author(s):
Alexandre Bellegard Farina, Rodrigo César N. Liberto, Celso Antonio Barbosa
Affiliated:
Villares Metals S/A
Pages: 8
Event:
SAE 2013 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Nickel alloys
Alloys
Corrosion
Nickel
Chromium
Valves
Combustion and combustion processes
Drag
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