Development of a novel corrosion-resisting soft magnetic alloy

A novel stainless soft magnetic alloy was developed and the chemical composition was following: C≤0.02%,Cr=13%～18%,Si and/or Al=1%～3%,Ti=0.3%～0.8%,B=0.003%～0.03%,Ce-La=0.003%～0.03%,no Mo=0.4%～3% and Cu=0.4%～3% or both existing,and the left was Fe.The basic performance of alloy was: B_(25)(H=25A/cm) ≥1.15T,H_c≤48A/m,P_(0.75T/400Hz)≤12W/kg(0.35mm thK) and ρ≥(70μΩ·cm).According to GJB360.2,there was no corrosion to happen in 96h salt spray test.The alloy can be used as raw materials of anti-corrosive aviation motor and oil-sprayer with electromagnetic valve used in cars motor,or else.