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Rusting of Iron in Pure Water
Standard Round Tension Test Specimen With 2inch
13 other sections not shown
2-inch gage length 30 days 48 days air cooled annealed as-cast condition ASTM ASTM standard austenite batch was tempered cast irons cathodic cementite Cleavage facets cooled to 650°F corrosion rate crucible days and tested decrease ductile cast iron exposed and unexposed exposure to water ferrite fracture mechanisms fracture mode fracture paths Fracture surface shows furnace cooled grain boundaries graphite nodules hardness values heat treatment higher magnification hydrogen embrittlement iron 2 samples iron or steel Microstructure of Iron mixture of tearing pearlitic percent Nital Picral etched PLASTIC quenched and tempered reduction in tensile rusting samples quenched saturation secondary cracks seedling nodules segregation shown in Fig shows a mixture stopper strain curves surface of Iron temper embrittlement tempered at 1050°F tempered ductile irons tempered martensite Tensile fracture surface tensile property values tensile strength tensile tests tested in air unexposed to water water and tested water environment water quenched