Manganese dependence of microstructure and mechanical properties in Fe–Mn alloy
作者： Jun Chen , Wei-na Zhang
DOI: 10.1080/02670836.2017.1354801
关键词: Ductility 、 Transmission electron microscopy 、 Strain hardening exponent 、 Austenite 、 Metallurgy 、 Elongation 、 Diffraction 、 Materials science 、 Microstructure 、 Manganese
摘要: ABSTRACTTwo Fe–Mn alloys with relatively low Mn content were designed. The microstructure characteristics and resultant mechanical properties investigated in detail by means of electron back-scattered diffraction, transmission microscopy X-ray diffraction. results show that the formation α′-martensite is effectively suppressed yield strength total elongation are significantly enhanced increasing from 12 to 13 mass%. A great amount can enhance strain hardening rate, but they deteriorate ductility. austenite grain always divided multiple-variant ϵ-martensite plate. In addition, prior boundaries austenite/ϵ-martensite interfaces act as obstacle suppress growth plates.
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