Essays about: "Helena Åkesson"

Found 1 essay containing the words Helena Åkesson.

  1. 1. Investigation of Ductility Dip at 1000˚C in Alloy 617

    University essay from KTH/Materialvetenskap

    Author : Julia Sjöström; Helena Åkesson; [2017]
    Keywords : Ductility dip cracking; Ni-based alloy; tortuous grain boundaries; intergranular precipitates; grain boundary migration; superalloy; M23C6; Ti N; C ; solid state cracking; dynamic recrystallization;

    Abstract : Alloy 617 displays a ductility dip during straining at exactly 1000˚C, leading to brittle fracture. A sudden decrease in ductility appearing during Gleeble hot ductility tests of Ni-based superalloys is a well-known phenomenon, while its cause is unknown. READ MORE