The Iron and steel magazine . c acid. Fig. 3, which is magnified two hundred times, shows theway in which the sulphur exists as manganese sulphide. A sec-tion containing a ghost is at once seen in a polished section with-out etching by the regular band of manganese sulphide specimen shown in the photograph has been very slightlyetched in order to show the position of the carbide patches inrelation to the manganese sulphide inclusions. Fig. 4 shows the same specimen, and at the same magni-fication, but more deeply etched. It will be noticed that theghost line has etched more read
The Iron and steel magazine . c acid. Fig. 3, which is magnified two hundred times, shows theway in which the sulphur exists as manganese sulphide. A sec-tion containing a ghost is at once seen in a polished section with-out etching by the regular band of manganese sulphide specimen shown in the photograph has been very slightlyetched in order to show the position of the carbide patches inrelation to the manganese sulphide inclusions. Fig. 4 shows the same specimen, and at the same magni-fication, but more deeply etched. It will be noticed that theghost line has etched more readily than the surrounding metalowing to the high percentage of phosphorus in it. Fig. 5 is a portion of the same sample, but magnified twothousand times, showing manganese sulphide and carbide richin phosphorus. Fig. 6 has been included here to show the influence of theseghosts on the ductility of the steel. The bar has been cut withshears, and it will be noticed that the steel tends to fracture 5oo The Iron and Steel Magazine. &t*£&±&?^ X
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Keywords: ., bookcentury1800, bookdecade1890, bookidironsteel, booksubjectiron
