In recent years, efforts to reduce CO2 emissions (carbon neutrality) have accelerated worldwide. In the aluminum manufacturing industry, CO2 emissions can be reduced by switching the raw materials of choice; from virgin ingots to recycled ingots. However, the possible characteristic change accompanying the usage of impurity-ridden recycled ingots severely limits its applications, which also limits its potential contribution to carbon neutrality. Determining how impurity elements present in recycled ingots can affect the function of manufactured components is a necessary first step towards expanding the usage of recycled ingots.In this study, we aimed to apply recycled ingots to the monolithic cylinder made of hypereutectic Al-Si alloy and investigated how impurity elements in recycled ingots affect properties (especially seizure characteristic).Die-cast cylinders using virgin and recycled ingots were manufactured and their properties were investigated. The elements that increased in the recycled ingots were Zn, Mn, and Ni. The effects of these elements on the seizure resistance were confirmed by reciprocating sliding test. In addition, we confirmed the differences in the compounds formed from metallographic observations and discussed the relationship between these compounds and seizure resistance using thermodynamic calculation software (Thermo-calc), among other methods.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effect of Impurity Elements in Recycled Ingots on Seizure Properties of Die-Cast Cylinders made of Hypereutectic Al-Si Alloy


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Small Powertrains and Energy Systems Technology Conference ; 2023



    Publication date :

    2023-10-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Linerless aluminium cylinder hypereutectic aluminium alloy cylinders

    Hartley,J. / Porsche / Schmidt,K.,Neckarsulm | Automotive engineering | 1976


    Rails made from bottom-cast ingots

    Gennet, Jr., C.W. | Engineering Index Backfile | 1928


    Rails made from bottom-cast ingots

    Gennet, Jr., C.W. | Engineering Index Backfile | 1928


    Rails made from bottom-cast ingots

    Gennet, Jr., C.W. | Engineering Index Backfile | 1928


    Rails made from bottom-cast ingots

    Gennet, Jr., C.W. | Engineering Index Backfile | 1928