Transactions of the American Society for Steel Treating, Volume 3American Society for Steel Treating., 1923 |
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Page 37
... ferrite , undergoes no known allotropic changes between room temperature and its melting point . But if duralumin is reheated immediately after quenching , an evolution of heat occurs at about 480-530 ° F. ( 250-275 ° C. ) ( 1 ) This is ...
... ferrite , undergoes no known allotropic changes between room temperature and its melting point . But if duralumin is reheated immediately after quenching , an evolution of heat occurs at about 480-530 ° F. ( 250-275 ° C. ) ( 1 ) This is ...
Page 40
... ferrite , similar to that of CuAl , in duralumin . The hardening of duralumin at atmospheric tem- Feratures also has a parallel in the hardening of some of the high carbon manganese and tungsten steels by precipitation of finely divided ...
... ferrite , similar to that of CuAl , in duralumin . The hardening of duralumin at atmospheric tem- Feratures also has a parallel in the hardening of some of the high carbon manganese and tungsten steels by precipitation of finely divided ...
Page 112
... ferrite of superior strength , subsequently resulting in a more dense and im- proved pearlite . With the increase in the carbon and alloy contents , this steel becomes more or less cementitic and it is probably this quali- ty which ...
... ferrite of superior strength , subsequently resulting in a more dense and im- proved pearlite . With the increase in the carbon and alloy contents , this steel becomes more or less cementitic and it is probably this quali- ty which ...
Page 151
... ferrite . 6. The formation of soft troostitic spots in hardening of abnormal steel is explained by the action of the oxide particles as starting points for the troostite formation . This explanation is founded on the investigations of ...
... ferrite . 6. The formation of soft troostitic spots in hardening of abnormal steel is explained by the action of the oxide particles as starting points for the troostite formation . This explanation is founded on the investigations of ...
Page 200
... ferrite appear uniformly distributed throughout the mass . The high carbon steel shows the usual cementite precipitation . A few important points of difference between the structure of the alloy steels and the corresponding carbon ...
... ferrite appear uniformly distributed throughout the mass . The high carbon steel shows the usual cementite precipitation . A few important points of difference between the structure of the alloy steels and the corresponding carbon ...
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Common terms and phrases
alloy steels aluminum AMERICAN SOCIETY annealing austenite Bessemer Brinell Bureau carbides carbon steel carburizing cast cementite cent carbon Chairman chapter chemical Chicago chrome-vanadium chromium Cleveland committee composition cooling corrosion course crucible Crucible Steel curves decarburization degrees Cent degrees Fahr Detroit discussion duralumin effect electric furnace etching experience ferrite forging hardening hardness heat treating heat treatment held high speed steel high-speed steel High-Speed Tool inch increase industry ingot interesting Iron Age iron and steel laboratory machine manganese manufacture martensite material mechanical meeting melting membership metal Metallurgical Engineering metallurgist method mill nickel obtained Ohio operation oxide pearlite piece Pittsburgh plant practical present production properties quenching temperature QUESTION railroads Scleroscope SOCIETY FOR STEEL solution specimen STEEL TREATING November STEEL TREATING October stress structure tempering tion tool steel TRANSACTIONS transformation treaters troostite vanadium William Kelly
Popular passages
Page 387 - The field of science is unlimited; its material is endless, every group of natural phenomena, every phase of social life, every stage of past or present development is material of science. The unity of all science consists alone in its method, not in its material.
Page 386 - The classification of facts and the formation of absolute judgments upon the basis of this classification — judgments independent of the idiosyncrasies of the individual mind — essentially sum up the aim and method of modern science.
Page 232 - It shall be the duty of said bureau to formulate standards and policies which shall promote the welfare of wage-earning women, improve their working conditions, increase their efficiency, and advance their opportunities for profitable employment.
Page 233 - Government include the Department of Agriculture, the Bureau of Mines of the Department of the Interior, the Bureau of Labor Statistics of the Department of Labor, the Railroad Retirement Board, the Social Security Board, the Bureau of Internal Revenue of the Department of the Treasury, the Department of Commerce, the Federal Trade Commission, and the Tariff Commission.
Page 232 - Bureau shall investigate and report . . . upon all matters pertaining to the welfare of children and child life among all classes of our people...
Page 429 - Mines, in a paper presented before the American Institute of Mining and Metallurgical Engineers, Feb.
Page 237 - By every means in our power, therefore, let us show our appreciation of pure science and let us forward the work of the pure scientists, for they are the advance guard of civilization. They point the way which we must follow. Let us arouse the people of our country to the wonderful possibilities of scientific discovery and to the responsibility to support it which rests upon them and I am sure that they will respond generously and effectively.
Page 233 - That it shall be the province and duty of said bureau and its director, under the direction of the Secretary of the Interior, to make diligent investigation of the methods of mining, especially in relation to the safety of miners and the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other inquiries...
Page 387 - The classification of facts, the recognition of their sequence and relative significance is the function of science, and the habit of forming a judgment upon these facts unbiassed by personal feeling is characteristic of what may be termed the scientific frame of mind.
Page 232 - Labor, who is directed to acquire and diffuse among the people of the United States useful information on subjects connected with labor in the most general and comprehensive sense of that word, and especially upon its relation to capital; the hours of labor; the earnings of laboring men and women; and the means of promoting their material, social, intellectual, and moral prosperity.