Description
Highly drawn, high-carbon steel wire is a nanophase composite with an approximate ferrite lamellae thickness of 10 nm and cementite lamellae thickness close to 2 nm. Understanding fundamental aspects of ductility of high-strength steel wire is important for improving manufacturing processing and preventing breaks during service. This paper reviews mechanisms of ductility for high-strength steel under different loading modes, including uni-axial tension, bending, torsion, and complex loading combining these. It is shown that high strength in highly drawn high-carbon wire can be achieved in combination with good ductility.