Properties Of Steel Wires Research Articles

Steel Wire Mechanical Property Degradation Study Based on Numerical Simulation

With the rapid development of underground engineering construction, such as deep mining of mineral resources and tunnel excavation under complex geological conditions, the existing support methods cannot meet the deformation requirements. It is necessary to conduct in-depth research on the stress status and damage evolution of the hanger rods, to establish a theoretical basis for the design principles and criteria of key components. In this paper, the degradation law of the mechanical properties of the hanger steel wire with the degree of corrosion is analyzed in detail. The results show that the corrosion changes the geometry of the cross section of the steel wire, which leads to the degradation of the mechanical properties of the steel wire. With the increase of corrosion length and depth, the strength, stiffness, and ultimate strain of the steel wire are reduced to varying degrees, and the effect of pitting corrosion is more significant than that of uniform corrosion. The closer the holes are, the greater the corrosion effect is.

Effect of reinforcement on the structure and properties of steel wire

1. Reinforcing mild steel with fibers of temper-hardened steel improves the quality of wire rod. Hot-rolled wire rod was successfully subjected to cold drawing to a 3.0-mm diameter without heat treatment. 2. The mechanical properties of reinforced wire can be improved by heat treatment. For the composite steel 0.8kp-steel 40, good strength and ductility were obtained after hardening at 860 °C and low tempering. 3. Reinforced wire rod has higher strength than predicted by the rule of additivity. A large contribution to the higher strength of reinforced specimens is made by the structure of the composite, which becomes more complex during solidification, subsequent plastic strain, and heat treatment.

Effect of stress on the magnetic properties of steel wire

Effect of stress on the magnetic properties of steel wire