Abstract
In present research, the structure evolution of the pearlite steel wire during cold drawing is systematically investigated, and the relationship between structure evolution and strength increase during wire drawing is analyzed. During cold drawing, the wire strength increases; inter-lamellar spaces of the pearlites decrease, which has an important effect on properties of cold drawn wires; accumulation of high density dislocation in ferrite phase can be thought to be one of the reasons for strengthening the wire, meanwhile, the amorphous phase forming in cemetites also make the wire strengthen; especially, the wire strength is effected seriously by the intensity of the fiber texture <110>, and as drawing, the wire strength increases.
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