Multileaf steel suspension springs are occasionally prone to failure through delayed hydrogen stress cracking, a brittle fracture that can occur even before the springs have been assembled into a vehicle. This failure mode is unusual, and problematic in respect of diagnosis and prevention. Jai Parabolic Springs Ltd (JPSL), the world's fourth largest leaf spring manufacturer, experienced early failures of this kind in springs produced for a truck vehicle program in 2005. The root cause was shown to be delayed hydrogen stress cracking, or hydrogen embrittlement. Tests were conducted to assess the conditions leading to this type of failure. Guidelines are presented that were developed, and proved in production, to prevent future recurrence.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hydrogen Embrittlement Failure in Suspension Leaf Springs


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2007 Commercial Vehicle Engineering Congress & Exhibition ; 2007



    Publication date :

    2007-10-30




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Hydrogen Embrittlement Failure in Suspension Leaf Springs

    Laroiya, S. / Sharma, A. / de Salis, R. et al. | British Library Conference Proceedings | 2007


    2007-01-4257 Hydrogen Embrittlement Failure in Suspension Leaf Springs

    Laroiya, S. / Sharma, A. / de Salis, R. et al. | British Library Conference Proceedings | 2007


    Leaf springs for wagon suspension

    Koffman, J.L. | Engineering Index Backfile | 1968


    Leaf-Springs for Car Suspension

    European Patent Office | 2022

    Free access

    TRAILING-ARM SUSPENSION WITH LEAF SPRINGS

    GERHARDS THOMAS / HINTZEN RALF / MAINZ DANIEL et al. | European Patent Office | 2019

    Free access