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

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

Introduction

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

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

Fundamental Conditions & ’s Started data accumulation Materials: 353; specimen: 93,000 Materials: 178; specimen: 14,904 Materials: 105; specimen: 35,107

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/ 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 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 Total Amount

Fundamental Conditions - Site Distribution Map

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

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

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

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…

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

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

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 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.

Summary & Prospect

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

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