19^th International CODATA Conference
Category: Data Quality

Data Retrieval and Evaluation within the Web-enabled Alloys-DB

H.H. Over, E. Wolfart
Joint Research Centre of the European Commission – Institute for Energy, Petten, The Netherlands

JRC Petten acts as a central server for storage of experimentally measured materials data and allows controlled access to confidential data, which is necessary to support European RTD projects in energy related areas. Such a central management of European materials property data establishes relational repository for data collection and saves costs for capital invested in generating materials data.

To enable data access in a fraction of time the ‘Alloys Database’ (Alloys‑DB) of JRC Petten has been established as a Web-enabled application.

Alloys‑DB manages mechanical and physical properties test data and covers materials behavior at low, elevated and high temperatures for base materials and joints.  Its emphasis is on data from standardised tests and on evaluation methods, which are well established and widely accepted.  Such test results can be entered and stored in the database of the system where they can be accessed and handled with typical database routines and from where they can also be retrieved for data evaluation.

The user is guided in an intelligent manner within the complex database structure of seven entities, more than 130 tables such as material production, heat treatment, specimen geometry, etc. and more than 1850 fields. The retrieved data can be presented in tables, charts and reports or analysed with the Alloys‑DB specific evaluations methods.

Part of the paper is also the presentation of the technology and programming tools for building up the Web-enabled user-interface and the interactive evaluation routines.