Transactions of the American Society for Steel Treating, Volume 9American Society for Steel Treating., 1926 |
Contents
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Common terms and phrases
720 degrees Cent 875 degrees Cent acid alloy steels alpha iron annealing atoms austenite bath carbide carbon content carbon steels carbon tool steel carburizing cast iron cementite cent carbon cent chromium CENT MANGANESE Chairman CHAPTER chromium Cleveland cold drawn composition coolant cooling curves cracks crystals cutting decarburization degrees Fahr delta iron diameter discussion effect electric epsilon etching ferrite forging furnace grain graphitization heat treating heat treatment high speed steel increase Iron and Steel load machine manganese manufacture martensite material meeting melting metal metallurgist method mold nickel steel obtained paper pearlite plates present produced quenched in water quenching temperature reheating Rockwell samples shape shown silicon Society for Steel solid solution specimens spheres STEEL CONTAINING Steel Treating stress structure surface per unit tempering tensile strength tion tool steel tungsten unit of volume vanadium various
Popular passages
Page 786 - INFLUENCE OF HEAT TREATMENT AND CARBON CONTENT ON THE STRUCTURE OF PURE IRON-CARBON ALLOYS By WL Fink and ED Campbell Abstract X-ray patterns were obtained from a series of pure iron-carbon alloys varying only in carbon content. Photomicrographic records were made of the identical
Page 40 - by permission of the Director of the Bureau of Standards of the US Department of Commerce. This paper is
Page 471 - by permission of the Director of the National Bureau of Standards of the US Department of Commerce. A
Page 591 - must have a tensile strength of not less than 55,000 pounds per square inch, and an elongation of 20 per cent in 2 inches
Page 415 - the best investment a young man starting out in business can possibly make is to give all his time, all his energy to his
Page 953 - investigators and show that direct experimental confirmation is available for the described empirical relations covering a wide range in conditions. Naturally the derived values do not closely check all published results for like quenching conditions, but agreement is obtained with representative experimental data other than that obtained by the authors. It will be observed in
Page 944 - the surface is far removed from the center and is small in comparison with the volume of metal to be cooled. No attempt was made to express mathematically the relation between "lag," surface per unit of volume and the coolant, for it is a simple matter to prepare a chart covering these relations by which
Page 943 - 3, in which is shown the relation, plotted logarithmically, between "lag" and surface per unit of volume, the differences between water, oil and air diminish as the size of sample increases (as the surface per unit of volume decreases). This feature again confirms the view, already expressed, that the center cooling of large masses is
Page 40 - Abstract In this report are given results of quenching experiments with high-carbon steels in which the speed of cooling was determined at the center of spheres, rounds and plates of various dimensions quenched from various temperatures into different coolants such as water, 5 per cent NaOH, oils and air. The cooling velocity at