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

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

3. Introduction

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

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

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

7. Network of Test site General CategorySpecific Type Number of Types Amount of Samples (piece) Network of Atmospheric Corrosion Test Sites Ferrous MetalCarbon Steel, Low Alloy Steel, Stainless Steel22 Nonferrous MetalCopper, Aluminum, Titanium & Their Alloys28 Protective LayersPlated Metallic Layers & Organic Coatings60 Polymer MaterialPlastics, Rubbers, Paints & Adhesives134/38 Sum 4 categories 244/38 59925 Network of Seawater Corrosion Test Sites Ferrous MetalCarbon Steel, Low Alloy Steel, & Stainless Steel24 Nonferrous metalcopper, Aluminum, Titanium & Their Alloys31 Plated/Coated LayersSprayed/Plated Metallic Layers & Organic Coatings16 Sum 3 categories 71 11591 Network of Soil Corrosion Test Sites Ferrous MetalCarbon Steel (pipe, sheet) & Stainless Steel6 Nonferrous MetalCopper, Aluminum & Lead3 Inorganic MaterialCement, Asbestos Cement & Concrete7 Organic MaterialPlastics, Pitch, Oiliness Hemp, Pyrocondensation Tube7 Cable and Protective Layers Urban Cables, Rural Cables, Coaxial Cables, Plastic Cable ， Bare Lead and Alumna Painted Steel Belt, Plastic-coated Steel Wire 13 Optical Cable and Protective Layers Optical Cables for Local and Long Distance Calls2 Sum 6 categories 38 673 Total Amount 353 93237

8. Fundamental Conditions - Site Distribution Map

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

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

11. Data-sharing Network Construction Website System Registration and login User, authorities and role management Other log management Data transfer Data management Data query News management User message

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 Main Database Atmospheric corrosion Ferrous Metal Meteorology Nonferrous Metal Polymer Coating Aqueous Corrosion Coating Ferrous Metal Nonferrous Metal Environmental Factors Soil Corrosion Ferrous & Nonferrous Physical & Chemical Properties of Soil Polymer & Inorganic Cables Microorganism in Soil

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

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