PENZA STATE UNIVERSITYPenza, Russia

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Rozen Andrei Evgenievich Los Irina Sergeevna Pervukhin Leonid Borisovich Perelygin Jury Petrivich Gordopolov Jury Alexandrovich Pervukhina Olga Leonidjvna

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Kiry Gennady Vladimirovich Abramov Pavel Ivanovich Usaty Sergei Gennadievich Kryukov Dmitry Borisovich Denisov Igor Vladimirovich Rozen Andrei Andreevich

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C23F 13/00 Inhibiting corrosion of metals by anodic

or cathodic protection

B32B 7/02Layered products in respect of physical

properties, e.g. hardness

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Availability of haloid ions in corrosive environment: Cl¯, J¯, Br¯

Displacement of electrochemical potential to positive sense

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Protected metal has more positive electrochemical potential

Protector has more negative electrochemical potential

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First (outer) layer

Stainless steel 18-10

Ест1´=+0,2 В

Second (internal) layer

Carbon steel

0,1% CЕст2=–0,44 В

Third layerStainless steel 18-10

Ест1´=+0,2 В

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First (outer) layer

Stainless steel 18-10 Ест1´=+0,18 В

Second (internal) layer

Copper Ест2=+0,3 В

Third layerStainless steel 18-10

Ест1´=+0,18 В

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Full-strength welds at all interlayer bounds

Minimum thickness of transitional interlayer zones

Considerable area of multilayer semifinished product

Integrity of outer layer

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Solution NaCl0.1 М

Time 20 days20 С

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80 120

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Crack 147

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The generation principle for multilayer structural materials with high resistance to pitting corrosion was proposed

International Application WO2010/036139 A1

The combinations of odd and even layers was selected

Third-layer and four-layer materials was prepared by explosive welding

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metal@pnzgu.ru

THANK YOU ATTENTION

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