Fig. 5
From: Microstructure and long-term corrosion of archaeological iron alloy artefacts
FE-SEM (b) and optical (a, c, d) micrographs of sites containing cracks in objects #3 (b) and #2 (a, c, d). a Shows initial crack (empty), b shows crack filling process, c shows marbling witness of former crack, d shows assembly of the two initial crack walls from (c) leading to the reconstruction of the microstructure
