纵截面上，在铁素体基体上分布着沿轧向呈纤维状的珠光体，铁素体条带密度从边缘至芯部呈逐渐减少的趋势。
The microstructure of longitudinal section in rebar was banded ferrite and pearlite and the ferrite band density reduced gradually along radius of rebar.
碳氮化物析出相有弥散析出、相间析出、纤维状析出及等温转变温度较低时，碳氮化物在铁素体晶内沿位错处弥散析出等形态。
It has been found that interphase precipitation, fibrous precipitation, precipitation on dislocation, precipitation from supersaturated ferrite at lower isothermal transformed temperature.
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