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Microstructure and mechanical properties of cold-drawn pearlitic wires affect by inherited texture
Graphical abstract Cold drawn wires with inherited texture have higher tensile strength and lower proportion of bent cementite. Display Omitted
Highlights Wires with inherited texture have higher 〈110〉 texture intensity than that of wires without inherited texture. Wires with inherited texture have lower proportion of bent pearlite than that of wires without inherited texture. Wires with inherited texture have higher work hardening rate and torsion-to-failure angle.
Abstract Pearlitic steel rods with inherited texture (IT) were prepared from pre-drawing followed by austenitization treatment. Effects of inherited texture on the microstructure and mechanical properties of cold-drawn pearlitic wires were investigated. The 〈110〉 texture of ferrite increased with drawing strain and became saturated when strain reached about 2.0. However, wires with IT showed a higher 〈110〉 texture intensity. The ratio of bent over straight pearlite colonies in wires with IT were about 20% lower than that of wire without IT in drawing. Additionally, Wires with IT showed a greater work hardening rate. Tensile strength of wires without IT increased from 1260MPa to 3010MPa as drawing strain increased to 3.5, while wire with IT exhibited an 7% increase in tensile strength (i.e., up to 3230MPa). Torsion angle of wires with IT were about 13% higher than that of wires without IT. Differential scanning calorimetry (DSC) analysis showed that wires with IT have higher thermal stability.
Microstructure and mechanical properties of cold-drawn pearlitic wires affect by inherited texture
Graphical abstract Cold drawn wires with inherited texture have higher tensile strength and lower proportion of bent cementite. Display Omitted
Highlights Wires with inherited texture have higher 〈110〉 texture intensity than that of wires without inherited texture. Wires with inherited texture have lower proportion of bent pearlite than that of wires without inherited texture. Wires with inherited texture have higher work hardening rate and torsion-to-failure angle.
Abstract Pearlitic steel rods with inherited texture (IT) were prepared from pre-drawing followed by austenitization treatment. Effects of inherited texture on the microstructure and mechanical properties of cold-drawn pearlitic wires were investigated. The 〈110〉 texture of ferrite increased with drawing strain and became saturated when strain reached about 2.0. However, wires with IT showed a higher 〈110〉 texture intensity. The ratio of bent over straight pearlite colonies in wires with IT were about 20% lower than that of wire without IT in drawing. Additionally, Wires with IT showed a greater work hardening rate. Tensile strength of wires without IT increased from 1260MPa to 3010MPa as drawing strain increased to 3.5, while wire with IT exhibited an 7% increase in tensile strength (i.e., up to 3230MPa). Torsion angle of wires with IT were about 13% higher than that of wires without IT. Differential scanning calorimetry (DSC) analysis showed that wires with IT have higher thermal stability.
Microstructure and mechanical properties of cold-drawn pearlitic wires affect by inherited texture
Fang, Feng (author) / Zhou, Lichu (author) / Hu, Xianjun (author) / Zhou, Xuefeng (author) / Tu, Yiyou (author) / Xie, Zonghan (author) / Jiang, Jianqing (author)
2015-04-23
8 pages
Article (Journal)
Electronic Resource
English
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