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2. Industrial context
2.1 Commonly used techniques
A specification may ask for a prediction diagram to be used when selecting a filler material. In this case, a filler is selected to produce "so much" ferrite according to "such-and-such" diagram, given "such-and-such" dilution.
After measurement, the actual content may not be as expected. The diagrams allow for a margin of error in prediction, while the method of deposition and welding conditions influence residual ferrite content (influence...
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Industrial context
Conclusion
Bibliography
References
Standardization
International standard
- Soudage - Détermination de l'Indice de Ferrite (FN) dans le métal fondu en acier inoxydable austénitique et duplex ferritique-austénitique au chrome-nickel. - NF EN ISO 8249 - (2000), deuxième édition
American standard
- Standard procedures for calibrating magnetic instruments to measure the delta ferrite content of austenitic and duplex ferritic-austenitic stainless steel...
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