Preparation and Properties of Pure Iron Alloys : I . Effects of Carbon and Manganese on the Mechanical Properties of Pure Iron
نویسنده
چکیده
This paper describes the preparation and mechanical properties of an extensive series of very pure alloys of electrolytic iron, carbon, and manganese whose compositions were so chosen as to bring out the specific effects on pure iron of additions of manganese, additions of carbon, and additions of carbon and manganese together in varying relative proportions. The maximum content each of carbon and manganese in each series is about 1.6 per cent; the minimum, o per cent, or pine iron. Three-pound ingots of the alloys were made by melting electrolytic iron under vacutim in an electric furnace in a crucible of ptwe magnesia to which the carbon and manganese were added after fusion of the iron. From these ingots tensile specimens were made and tested in the annealed state. The data were tabulated in the order of increasing carbon for comparison and interpretation of results. The effects of carbon are shown by grouping the specimens according to manganese contents and plotting exudes for each group, with values from tests for ordinates and carbon contents for abscissas. The effects of manganese are shown in a similar manner by regrouping the specimens according to carbon contents. CONTENTS. Page.
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