The objective of this study is to investigate dynamic torsional characteristics of Al-Li alloys using torsional Kolsky bar. The materials used were a 2090 (Al-2.9Cu-2.2Li-0.15Mg-0.13Zr wt%) and an 8090 (Al-2.5Li-1.24Cu-0.9Mg-0.11Zr wt%) Al-Li alloy. Dynamic (gamma rate = 1200/s) torsional tests were conducted at room temperature and low temperature (-196 deg C), and the deformed regions and the fracture surfaces of the tested specimens were examined. A number of planar slip bands were formed predominantly in the heavily deformed region in the case of room temperature dynamic testing, but the amount of planar slip bands tended to decrease with decreasing test temperature. This indicated that the overall deformation mode of both Al-Li alloys changed from the planar slip to the homogeneous deformation with decreasing temperature, resulting in the improvement of the cryogenic properties under dynamic torsional loading.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Study of dynamic torsional characteristics of Al-Li alloys


    Additional title:

    Untersuchung von dynamischen Torsionseigenschaften von Al-Li-Legierungen
    Titel koreanisch


    Contributors:
    Lee, C.G. (author) / Kim, K.J. (author) / Cho, K. (author) / Lee, S. (author)


    Publication date :

    1996


    Size :

    9 Seiten, 12 Bilder, 2 Tabellen, 29 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Korean




    Dynamic characteristics of torsional rubber dampers and their optimum tuning

    Honda,Y. / Saito,T. / Waseda Univ.,JP | Automotive engineering | 1987


    Dynamic Characteristics of Torsional Rubber Dampers and Their Optimum Tuning

    Saito, Takeshi / Honda, Yasuhiro | SAE Technical Papers | 1987


    WATERSKI WITH IMPROVED TORSIONAL CHARACTERISTICS

    DRAGIĆ SRĐAN | European Patent Office | 2015

    Free access

    WATERSKI WITH IMPROVED TORSIONAL CHARACTERISTICS

    DRAGIC SRDAN | European Patent Office | 2017

    Free access

    WATERSKI WITH IMPROVED TORSIONAL CHARACTERISTICS

    DRAGIC SRDAN | European Patent Office | 2017

    Free access