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Precipitation Characteristics in a Low‐Carbon Vanadium–Titanium‐Bearing Steel
Author(s) -
Chen Jun,
Wang GuoDong
Publication year - 2015
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.201400275
Subject(s) - vanadium , materials science , transmission electron microscopy , titanium , precipitation , interphase , ferrite (magnet) , metallurgy , electron backscatter diffraction , selected area diffraction , nanometre , carbide , scanning electron microscope , diffraction , crystallography , composite material , nanotechnology , chemistry , optics , microstructure , genetics , physics , biology , meteorology
The precipitation characteristics in a low‐carbon vanadium–titanium‐bearing steel were investigated using transmission electron microscope. The analysis of selected area electron diffraction patterns and energy dispersive X‐ray spectrometer reveal that these nanometer‐sized particles are (Ti 0.7 ,V 0.3 )C carbides with a NaCl‐type crystal structure with the lattice parameter of 0.436 nm. Most sheet planes are close to {211} α , {210} α , {140} α , or {111} α and only few sheet planes are close to {110} α . And note that none ferrite grain only occupied by interphase‐precipitated particles was observed. Moreover, the interphase‐precipitated nanometer‐sized particles can obey the Baker–Nutting orientation relationship or the Nishiyama–Wassermann orientation relationship.