Heat treatment and corrosion resistance of 304 stainless steel metal rubber

Abstract In order to eliminate the residual stresses generated during the preparation process, the heat treatment of deformed/undeformed 304 stainless steel wires was carried out by solution treatment and annealing process, and the optimal heat treatment parameters were explored. In addition, the surface modification of 304 stainless steel metal rubbers wires was carried out by pickling passivation method and the optimal formulation was explored. Finally, the corrosion resistance, mechanical properties, fatigue properties and damping properties of 304 stainless steel before and after heat treatment were tested and analyzed. The results show that the organization of 304 stainless steel wire is basically single-phase austenite after solution treatment at 800 °C, and annealing at 400 °C can effectively eliminate residual stresses. The passivation agent in the proportion of citric acid and hydrogen peroxide is 3:10, the passivation film effect is the best. The deformation of 30 % of the specimen heat treatment of the various properties have been improved, which is beneficial to enhance the 304 stainless steel metal rubber in different environments stable working ability.