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Hot Workability of as‐Cast High Manganese‐High Carbon Steels
Author(s) -
Bleck Wolfgang,
Phiuon Kriangyut,
Heering Christoph,
Hirt Gerhard
Publication year - 2007
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200706245
Subject(s) - materials science , metallurgy , austenite , manganese , ductility (earth science) , high carbon , ultimate tensile strength , hot working , fracture (geology) , casting , deformation (meteorology) , compression (physics) , alloy , composite material , microstructure , creep
In order to produce new high Mn‐high C austenitic steels (R m >700 MPa), different tests and methods were used to determine a suitable window of process parameters. In‐situ melting hot tensile tests and hot compression tests were carried out to investigate the hot ductility, fracture characteristics and flow behaviour during continuous casting and hot deformation of 3 steels with Mn and C contents between 9‐23% and 0.6‐0.9%, respectively. The results show that these steels are susceptible to interdendritic fracture at high temperatures. Decreasing Mn content improves the reduction of area at high temperatures to 60% or more. Hot deformation loads for processing the investigated steels are not higher in comparison to the stainless steel 1.4301.