材料自然环境腐蚀数据库

A Database System of Nature Environment Corrosion of Materials

材料自然环境（大气、海水、土壤）腐蚀数据积累工作已取得了六大类材料（黑色金属、有色金属、合成材料、保护涂层、混凝土、电缆和光缆）在全国不同类型环境中的大量腐蚀性能数据，对这些数据进行了收集、整理、贮存和评价。利用关系型数据结构方法，设计和编制了材料自然环境腐蚀数据库系统（NECDM）。该系统可提供数据管理、数据查询和检索、数据处理、数据库维护、报表和图形打印等功能。

This paper introduces the designing ideas, the database structures and the function of the nature environment corrosion database system of materials.The relational data structure is used for database design. A large amount of data have been collected, arranged and stored in the database, which are the nature environment (atmosphere, marine, soil) corrosion data of ferrous metals, nonferrous metals, coatings, synthetics, concretes, electric and optical cables under different conditions of the whole country.The data have been appraised, standardized. The functions of the database include inquirey, management and statistics processing for data as well as safeguard database. The advantages of the system are that it is convenient to operate and easy to master