Thermo-mechanical fatigue (TMF) life of ductile simo cast iron with aluminum addition

Autor:	Xijia Wu, Delin Li, Guangchun Quan
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Materials science chemistry Casting (metalworking) Aluminium Metallurgy Iron alloys engineering chemistry.chemical_element Cast iron engineering.material Fatigue limit Thermo-mechanical fatigue Corrosion
Popis:	Strain controlled thermo-mechanical fatigue (TMF) tests were conducted on a high Silicon ductile cast iron (SiMo) as the baseline material and a similar SiMo cast iron with aluminum addition (SiMoAl). The much improved fatigue life with aluminum addition is analyzed using the integrated creep-fatigue theory (ICFT) in combination with the metallurgical analysis on the tested coupons. Addition of about 3 wt.% Aluminum significantly improved TMF life of the SiMo cast iron. The results are explained by elimination of brittleness at middle temperature range, the higher flow stress, lower creep rate and higher oxidation resistance from Al addition. SAE WCX Digital Summit, April 13-15, 2021, virtual format Series: SAE Technical Paper Series
Databáze:	OpenAIRE
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