Search Results for Sulfides

Fig. 6 Formation of chromium sulfides (gray areas, such as marked by arrow) along the surface, caused by diffusion of sulfur species along the grain boundaries of IN-690 liner. As expected, sulfide concentration decreases with depth, due to diffusion limitations. Precipitates formed along More

Fig. 9 Effect of manganese content in steel on chromium content in sulfides for a free-machining 13% Cr martensitic stainless steel. Source: Ref 14 More

Fig. 4 Manganese sulfides (some chromium substitutes for manganese) in type 416 stainless steel More

Fig. 5 Manganese sulfides in type 203 stainless steel More

Fig. 6 Manganese sulfides in (a) a billet of ingot-cast type 303 stainless steel and (b) a bar of continuously cast 303 stainless steel More

Fig. 43 Delta-ferrite and manganese sulfides in martensitic matrix of (a) 416 stainless steel etched with modified Fry's reagent and (b) 5F (modified 416) stainless steel etched with Ralph's reagent More

Fig. 6 Predominance area diagram for roasting of iron and copper sulfides at 700 °C (1292 °F). Solid lines: iron compounds. Dashed lines: copper compounds. Dotted lines: gases. Ternary compounds are disregarded. More

Fig. 19 Examples of the three most common forms of manganese sulfides viewed in the as-cast condition. (Left) Type 1; 250×. (Center) Type II; 250×. (Right) Type III; 1600× More

Fig. 16 Manganese sulfides in each specimen were manually point counted with a 100-point grid using 10 sets of 10 contiguous fields (~1 h/specimen) to obtain the data shown. The correlation between the wt% S and the manual point fraction was quite good, although the time required More

Fig. 2 Standard free energies of formation for selected sulfides as a function of temperature and sulfur partial pressure. Source: Ref 4 More

Fig. 85 Discrete sulfide particles on fracture surfaces of an Incoloy 800 tested in a sulfidizing atmosphere. Energy-dispersive x-ray analysis indicated that sulfur was present at particles 1 and 3 and that no sulfur was detected on surfaces 2 and 4. The sulfur-containing particles More

Fig. 14 Average angle of sulfide inclusions relative to the longitudinal axle axis as a function of distance from the fracture face. Specimen was taken from the area near the centerline at the fracture face. Compare to the qualitative examples in Fig. 12 and 13 . More

Fig. 5 Sulfidation penetration into IN-690 liner approximately 50 to 250 μm deep. The sulfidized weakened structure of the alloy has led to cracking. More

Fig. 7 Sulfidation and chloridation attack on nickel alloy of charcoal-regeneration kiln. See also Fig. 8 . Region 1 is an area of chromium sulfide islands (dark phase) interspersed in chromium-depleted region (bright phase). Region 2 has angular phase (consisting mostly of nickel sulfide More

Fig. 8 Sulfidation and chloridation attack on nickel alloy of charcoal-regeneration kiln, with greater magnification (at ∼44×). Lower right is region of chromium sulfide islands (dark phase) interspersed in chromium-depleted region (bright phase). Middle region has angular phase (consisting More

Fig. 14 Significant volume fraction of manganese sulfide inclusions in wedge-shaped tapered ring microstructure. 73× More

Fig. 11 Biogenic sulfide corrosion process. SOB, sulfur-oxidizing bacteria. Courtesy of Corrosion Probe, Inc. More

Fig. 7 Effect of sulfide shape on machinability in a drill test for S30300 austenitic stainless steel. Source: Ref 9 More

Fig. 8 Effect of sulfide size on machined surface finish for a free-machining austenitic stainless steel. Source: Ref 11 More

Fig. 15 Effect of tellurium on sulfide shape in a 13% Cr martensitic stainless steel hot rolled various percent reductions in area at 1177 °C (2150 °F) More