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Citation: Niu Lin, Lin Hai-Chao, Cao Chu-Nan, Song Guang-Ling. Inhibitive Action of Benzotriazole for SCC of 18-8 Stainless Steel[J]. Acta Physico-Chimica Sinica, ;1997, 13(09): 802-807. doi: 10.3866/PKU.WHXB19970907 shu

Inhibitive Action of Benzotriazole for SCC of 18-8 Stainless Steel

1.
Institute of Corrosion and Protection of Metals,State Key Laboratory for Corrosion and Protection,The Academy of Sciences,Sehnyang 110015

Received Date: 9 December 1996
Available Online: 15 September 1997

The SCC susceptibility of 1Cr18Ni9Ti austenitic stainless steel in 0.5 mol.L-1 HCl+0.5mol.L-1 NaCl solutions and the inhibiting effect of benzotriazole (BTA) for SCC and general corrosion were investigated by slow strain rate technique (SSRT), polarization measurements and electrochemical impedance spectroscopy. The results indicated that the inhibitive action of BTA can be attributed to its adsorption and inhibiting effects on the anodic reaction of metal dissolution due to the blocking of the active sites on metal surface.
- 1Cr18Ni9Ti austenitic stainless steel,
- Stress corrosion cracking susceptibility,
- Inhibitive action mechanism;Adsorption,
- Anodic dessolution
  ,
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