%0 Journal Article %T Black Wattle Tannin As Steel Corrosion Inhibitor %A Rafael Silveira Peres %A Eduardo Cassel %A Denise Schermann Azambuja %J ISRN Corrosion %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/937920 %U http://dx.doi.org/10.5402/2012/937920