China Environmental Corrosion Data-Sharing Network: Construction and Application

1. Construction and Application of China Environmental Corrosion Data-Sharing Network Xiaogang LI, Lin LU Corrosion & Protection Center University of Science & Technology Beijing

2. Outline 1. Introduction 2. Fundamental Conditions 3. Data-sharing Network Construction 4. Application Cases 5. Summary & Prospect

3. Introduction What is corrosion? What is environmental corrosion?

4. Introduction Data Source Corrosion data for different materials in natural environments. Corrosion data in industrial environments

5. Introduction Stage 1 Stage 2 Stage 3 Data Evaluation, Data Processing & Data Analysis Corrosion Rules Achievement & Engineering Consultation Sample Manufacture & Data Collection

6. 2002 & 2003 Fundamental Conditions Started data accumulation 1950’s 1982 Materials: 353; specimen: 93,000 Materials: 178; specimen: 14,904 Materials: 105; specimen: 35,107 2006

8. Fundamental Conditions - Site Distribution Map

9. System Implement • Operating system: Linux redhat • Database system: Oracle9i • Application software server: IBM Websphere application server • Programming language：Java

10. Query and Analysis of data & tables, graphs Atmospheric Corrosion Data Accelerated Experiment Data Corrosion-resistant Products System Design Add, Delete and Revise data Data-sharing Platform Data management system Database Query System Environmental Corrosion Database Aqueous Corrosion Data Soil Corrosion Data Standards & Methods Morphology Data Corrosion Cases

11. Data-sharing Network Construction

12. Database Design - Field Design Material properties Environmental factors Corrosion status Data source … size, weight, heat treatment status, chemical composition, appearance, and mechanical properties… …temperature, humidity, meteorology factors, corrosion medium and pollutant… …corrosion type, corrosion area, corrosion intensity, weight loss, corrosion rate, the maximum pitting depth… …experimental site, data collection, analysis report, corrosion experiment criterion…

13. Database Design – Form design

14. Application Cases • Sanxia Dam project • Classification of soil corrosiveness in Dagang oil field • Customized data system for BaoSteel

23. Summary • More than 400 thousand data • the measurement of atmospheric and seawater corrosions lasted for 8-10 years and that for alkaline soil corrosion lasted for 30-50 years. • Those data of different materials are classified into six categories (ferrous metal, non-ferrous metal, concrete, polymer, cable and optical cable), which was verified by corrosion specialists and can be further used in practice. • the corrosion-resistant performance of different materials in various environments and the related corrosion principles have been concluded, which provide important references for the material selection and corrosion estimation. • Twelve experimental methods for atmospheric corrosion and seawater corrosion have been regulated into national standards.

24. Summary & Prospect

25. Summary & Prospect Data mining & online monitor Near Future Sharing data online 2000’s Putting specimen into test on big scale 1980’s Collecting data Late 1950’s

26. Acknowledgement Financial Support from: • the Ministry of Science and Technology of P. R. China • the National Natural Science Foundation of China (NSFC)

27. Thank you very much!