FD ISO/TR 22824
Welding - Best practices for specification and measurement of ferrite in stainless steel weld metal
This document describes best practices, based on the experience of experts, for setting appropriate requirements, in specifications and other standards and contract documents, on ferrite content of nominally austenitic or duplex ferritic-austenitic stainless steel weld metals. It also describes a best practice on measurement and measurement reproducibility, and deals with outliers in measurement. It considers ferrite in the weld heat-affected zone of duplex stainless steel. It does not consider specification or measurement of ferrite in ferritic stainless steels nor in martensitic stainless steels.
This document describes best practices, based on the experience of experts, for setting appropriate requirements, in specifications and other standards and contract documents, on ferrite content of nominally austenitic or duplex ferritic-austenitic stainless steel weld metals. It also describes a best practice on measurement and measurement reproducibility, and deals with outliers in measurement. It considers ferrite in the weld heat-affected zone of duplex stainless steel. It does not consider specification or measurement of ferrite in ferritic stainless steels nor in martensitic stainless steels.
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Phénomènes métallurgiques de ferrite dans le métal fondu des aciers inoxydables
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5 Effets de variations de la ferrite sur le comportement en service du métal fondu des aciers inoxydables
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6 Mesurage de la ferrite dans le métal fondu en acier inoxydable
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7 Spécification de la ferrite dans le métal fondu des aciers inoxydables
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8 Valeurs aberrantes dans le mesurage de la ferrite
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9 Conclusions
- Bibliographie
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