The Crystallization of Iron and Steel: An Introduction to the Study of MetallographyLongmans, Green, and Company, 1905 - 144 страници |
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... Martensite , hardenite , austenite ( 39 ) ; § 21 , Sorbite , troostite ( 42 ) ; § 22 , The phase rule ( 43 ) . THE HARDENING , ANNEALING , AND TEMPERING OF STEEL . • § 23 , General properties of hypo- and hyper- eutectic steels ( 49 ) ...
... Martensite , hardenite , austenite ( 39 ) ; § 21 , Sorbite , troostite ( 42 ) ; § 22 , The phase rule ( 43 ) . THE HARDENING , ANNEALING , AND TEMPERING OF STEEL . • § 23 , General properties of hypo- and hyper- eutectic steels ( 49 ) ...
Страница 33
... martensite , in honour of the German metallurgist , A. Martens . There is a complication . The solid solution of carbon in iron which separates is not a definite chemical compound . The iron will not retain , in solid solution , more ...
... martensite , in honour of the German metallurgist , A. Martens . There is a complication . The solid solution of carbon in iron which separates is not a definite chemical compound . The iron will not retain , in solid solution , more ...
Страница 34
... martensite having the composition represented by MQ . As the iron cools down from the eutectic temperature OM , the solid martensite rejects more carbon . The curve QN is the solubility curve of carbon in iron . When the tem- perature ...
... martensite having the composition represented by MQ . As the iron cools down from the eutectic temperature OM , the solid martensite rejects more carbon . The curve QN is the solubility curve of carbon in iron . When the tem- perature ...
Страница 35
... Martensite B 1200 ° and Q 1100 ° y - Ferrite Martensite and Graphite II 1000 ° 900 ° 800 ° α Cementite line N Martensite and Cementite III 700 ° Pearlite 600 ° and Ferrite 500 ° 3 Pearlite and Cementite IV 2 4 % CARBON eutectic point of ...
... Martensite B 1200 ° and Q 1100 ° y - Ferrite Martensite and Graphite II 1000 ° 900 ° 800 ° α Cementite line N Martensite and Cementite III 700 ° Pearlite 600 ° and Ferrite 500 ° 3 Pearlite and Cementite IV 2 4 % CARBON eutectic point of ...
Страница 36
... martensite with 2 per cent . of carbon . Region II . - This solidifies into martensite with 2 per cent . of carbon , and graphite on passing into region II . There is no cementite formed in this region , because cementite decomposes ...
... martensite with 2 per cent . of carbon . Region II . - This solidifies into martensite with 2 per cent . of carbon , and graphite on passing into region II . There is no cementite formed in this region , because cementite decomposes ...
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0.9 per cent Ac₁ allotropic alloys annealing Ar₁ austenite B.Sc brittle carbon in iron cast iron cementite chemical CHEMISTRY cleavage planes College Coloured constituents cooling curve copper critical point Crown 8vo crystalline grains D.Sc Diagrams ductile ELEMENTARY PRACTICAL elements Engineering equilibrium eutectic mixture eutectic point Examples ferrite fracture freezing freezing-point GEOMETRY graphite grey hard hardening hardenite heat Hospital ibid Illus Illustrations Iron and Steel J. E. Stead J. O. Arnold Journ Jüptner Lecturer liquid LL.D Lond London MAGNETISM manganese martensite mass mechanical metal Metallographist Metallurgy microscope molecules molten nitric acid numerous Osmond passive resistance pearlite Ph.D phase rule physical PHYSIOLOGY Plates polished surface Professor properties pure iron quenched Royal 8vo salt Sauveur Science separates shown in Fig silicon sodium thiosulphate solid solution solidified solution of carbon sorbite specimen steel containing Steel Inst structure Students substance sulphur temper temperature TEXT-BOOK trations TREATISE troostite Woodcuts y-iron
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