This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Diagramme schaeffler.svg en Schaeffler diagram structure of steel according to the nickel and chrome equivalent percentages austenite ferrite martensite The grey dashed lines show the proportion of ferrite in austenoferritic alloys fr Diagramme de Schaeffler structure de l'acier en fonction des teneurs quivalentes en nickel et chrome