Corrosion study — exposure, electrochemistry and loss
Compare corrosion behaviour with matched surface preparation and exposure. Electrochemical indicators, mass loss and surface morphology provide complementary evidence and must use compatible time and area bases.
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{
"nodes": [
{ "id": "spec", "type": "rounded", "label": "Matched material specimens", "x": 40, "y": 200, "width": 150, "height": 104, "fill": "#ede9fe", "stroke": "#6d28d9" },
{ "id": "surf", "type": "octagon", "label": "Surface preparation record", "x": 215, "y": 520, "width": 150, "height": 104, "fill": "#e0f2fe", "stroke": "#0369a1" },
{ "id": "env", "type": "rounded", "label": "Defined exposure environment", "x": 215, "y": 200, "width": 150, "height": 104, "fill": "#fef3c7", "stroke": "#b45309" },
{ "id": "elec", "type": "card", "label": "Electrochemical indicators", "x": 390, "y": 40, "width": 150, "height": 104, "fill": "#ccfbf1", "stroke": "#0f766e" },
{ "id": "mass", "type": "card", "label": "Mass / thickness loss", "x": 390, "y": 360, "width": 150, "height": 104, "fill": "#ccfbf1", "stroke": "#0f766e" },
{ "id": "morph", "type": "card", "label": "Surface / cross-section morphology", "x": 565, "y": 520, "width": 150, "height": 104, "fill": "#ccfbf1", "stroke": "#0f766e" },
{ "id": "basis", "type": "octagon", "label": "Area and time normalisation", "x": 565, "y": 200, "width": 150, "height": 104, "fill": "#e0f2fe", "stroke": "#0369a1" },
{ "id": "comp", "type": "rounded", "label": "Corrosion performance comparison", "x": 740, "y": 200, "width": 150, "height": 104, "fill": "#fef3c7", "stroke": "#b45309" },
{ "id": "lim", "type": "rounded", "label": "Mechanism and service-scope limits", "x": 915, "y": 200, "width": 150, "height": 104, "fill": "#f1f5f9", "stroke": "#475569" }
],
"edges": [
{ "id": "e0", "source": "spec", "target": "env", "label": "expose" },
{ "id": "e1", "source": "surf", "target": "env", "label": "standardise", "style": "dashed" },
{ "id": "e2", "source": "env", "target": "elec", "label": "monitor" },
{ "id": "e3", "source": "env", "target": "mass", "label": "measure" },
{ "id": "e4", "source": "env", "target": "morph", "label": "inspect" },
{ "id": "e5", "source": "elec", "target": "basis", "label": "consistent basis" },
{ "id": "e6", "source": "mass", "target": "basis", "label": "consistent basis" },
{ "id": "e7", "source": "basis", "target": "comp", "label": "compare" },
{ "id": "e8", "source": "morph", "target": "comp", "label": "localised evidence" },
{ "id": "e9", "source": "comp", "target": "lim", "label": "interpret" }
]
}