1. INDUSTRIAL-SCALE EXPLOSIVE WELDING OF CORROSION-RESISTANS MULTICLAD MATERIALS WITH “SACRIFICIAL PITTING-PROTECTION” XII International symposium on explosive production of new materials: science, technology, business and innovations (EPNM-2014 ) Andrey Rozen Prof. Andrey Rozen Cracow 2014

2. Actuality Annual global financial losses from corrosion are estimated as $2.2 trillion, which appears to be from 2.0 to 6.0% of national GNPs. In particular, last year the losses totaled: - $442 billion in the USA, - $94 billion in Germany, - $51 billion in Russia. An element of the pipe transporting halogens containing liquids (F, Cl, Br, I).

3. “Sacrificial pitting-protection” Aggressive environment 3 2 1 12Х18Н10Т Steel 10 Formation of corrosion processes in protective layer Development of corrosion processes in protective layer

4. The results of 2D LS-DYNA modeling of 3 layers material explosive welding Initial moment In 40 mks after beginning of the process

5. Industrial-scale explosive welding of multiclad materials

6. Ultrasound Control

7. Welding stitches control Bending test Stretch test

8. Project Team ISMAN Prof. Leonid B. Pervukhin Director Andrey A. Rozen Prof. Yury A. Gordopolov Svarka Prof. Sergey G. Usatyi

9. Our Intellectual Property Exclusive rights for the invention to be obtained in 37 countries

10. Tel. : +7 927 380 93 81 E-mail: aerozen@bk.ru Thank you for your attention! XII International symposium on explosive production of new materials: science, technology, business and innovations (EPNM-2014 )