This study reports the corrosion performance of three different coating strategies tested on an AE44 high performance magnesium strut tower brace used on the 2020 Ford Mustang Shelby GT500. The alloy was selected due to its improved structural performance at higher temperatures over conventional AM60B magnesium die castings. The first coating strategy used no pretreatment, conversion coating, or topcoat to gage the baseline corrosion performance of the uncoated alloy. The second coating strategy used a conventional pretreatment commonly used on AM60B alloy. The third used a ceramic-based conversion coating. A textured (stipple) powder coat was then applied to the two non-baseline parts over the pretreatment. All three coating strategies were then evaluated by comparing the corrosion performance after cyclic corrosion testing for 12 weeks using the Ford L-467 test. Aluminum washers were used to isolate the upper steel fasteners from the magnesium surface to prevent galvanic corrosion from affecting the comparison. Studies showed the ceramic-based pretreatment provided the best corrosion performance with this alloy and powder coat combination.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Corrosion Performance of a Magnesium Tower Brace


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE WCX Digital Summit ; 2021



    Publication date :

    2021-04-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Strut-tower brace

    CICCONE THOMAS JOSEPH / KURANE AMOL / DELANEY RYAN et al. | European Patent Office | 2018

    Free access

    strut tower brace bar

    LEE JIN TAE | European Patent Office | 2021

    Free access

    APPARATUS OF AUTOMOTIVE STRUT TOWER BRACE BAR

    JANG YUN SIK | European Patent Office | 2019

    Free access

    Brace connecting device for tower crane with adjustable length

    LEE IK SEON | European Patent Office | 2023

    Free access