NICKEL AND CHROME BASED IRON ALLOY HAVING ENHANCED HIGH TEMPERATURE OXIDATION RESISTANCE

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United States of America

APP PUB NO 20200024703A1
SERIAL NO

16490666

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A nickel- and chrome-rich highly heat-resistant, austenitic iron based alloy. The alloy exhibits an improved fine dendritic carbide structure and can withstand repeated thermal elongation and strain which is particularly important for an exhaust-gas turbocharger component exposed to exhaust gas flow, such as a turbine housing. The alloy also guarantees very good thermo-mechanical fatigue (TMF) loading performance. A thermal cracking problem of the component is significantly reduced. The alloy is influenced by the relationship between the elements nickel, niobium, cerium and vanadium. The invention further concerns a method for prevention of crack formation and for minimizing oxidization in a turbocharger turbine housing.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DIETRICH, Ingo Gruenstadt, DE 4 4
SCHALL, Gerald Bobenheim-Roxheim, DE 26 50

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