. The car wheel; giving the results of a series of investigations . highest in carbon con-tent. This explains, in part, the high ultimatetensile strength, although it cannot account forit altogether because the Schoen wheel ^eads the Atire, which has a higher carbon content, in elasticityand maximum load, and in ductility is above the Ewheel having a lower carbon content. In this analysisspecial attention is directed to the sulphur, not atrace of which could be found in the Schoen wheelspecimens under examination. M ICROGRAPHIC RECORDS SHOW-ING THE PENETRATION OFWORK AND CHARACTER OFHEAT TREAT
. The car wheel; giving the results of a series of investigations . highest in carbon con-tent. This explains, in part, the high ultimatetensile strength, although it cannot account forit altogether because the Schoen wheel ^eads the Atire, which has a higher carbon content, in elasticityand maximum load, and in ductility is above the Ewheel having a lower carbon content. In this analysisspecial attention is directed to the sulphur, not atrace of which could be found in the Schoen wheelspecimens under examination. M ICROGRAPHIC RECORDS SHOW-ING THE PENETRATION OFWORK AND CHARACTER OFHEAT TREATMENT. The physical properties of the steel in these wheelsand tires having been determined, an examinationwith the microscope was made of samples fromeach. In the preparation of the specimens for thiswork strips were cut from each wheel and tire inaccordance with the lines shown on the numbers 1,2,3 ^^^ 4 ^^^ ^^^ ^^^ identificationof the strips and are used in connection withthe photographs, all of which were made with amagnification of 88
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Keywords: ., bookcentury1900, bookdecade1900, bookidc, booksubjectrailroadcars
