| 摘要 |
PROBLEM TO BE SOLVED: To provide an alloy composition which is suitable for formation of a surface oxide layer strong in adhesiveness and is improved in resistance to water-soluble acid corrosion and salt spray corrosion. ! SOLUTION: An austenite-based iron/nickel/chromium/copper alloy comprises 24%≤Ni≤36%; Cr≥0.02%; Cu≥0.1%; Cu+Co≤15%; 0.01≤Mn≤6%; 0.02≤Si≤2%; 0≤Al+Ti≤3%; 0≤C≤2%; 0≤V+W≤6%; 0≤Nb+Zr≤0.5%; 0≤Mo≤8; Sn≤1; 0≤B≤0.006%; 0≤S+Se+Sb≤0.008%; 0≤Ca+Mg≤0.020% and remaining iron and impurities, and the contents% of Ni, Cr, Cu and Co meet conditions: Co<Cu; Co<4%(Cr>7.5%); Eq1>28%[Eq1=Ni+1.2Cr+(Cu/5)]; and Cr<7.5%(Ni>32.5%) ! COPYRIGHT: (C)2015,JPO&INPIT |
