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Development of New Intermediate Nickel Alloys for Application in Automotive Valves of High Performance Engines
Technical Paper
2013-01-1153
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
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Authors
Topic
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.Also In
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