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10 Cards in this Set
- Front
- Back
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a solid solution of steel at room temperature contains 0.1% carbon. what is this structural form of steel, assuming it has never been heat treated? Austenite Cementite Ferrite Pearlite
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Ferrite |
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a solid solution of steel at room temperature contains 1.6% carbon. assuming it has never been heat treated this steel is a mixture of pearlite and ___________? Austenite Cementite Ferrite martensite |
Cementite |
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a solid solution of steel at room temperature contains 0.8% carbon. what is this structural form of steel, assuming it has never been heat treated? Austenite Martensite Cementite Pearlite |
Pearlite |
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a solid solution of steel at room temperature has been rapidly quenched after being heated above the upper transformation temperature. assuming it contains 0.1% carbon, what is this structural form of steel? Austenite Martensite Ferrite Pearlite |
Martensite |
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what information is needed when using an iron-carbon phase diagram to identify structures of steel? the speed of the quench the temperature of the steel the number of impurities in the steel none of the above |
the temperature of the steel |
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which of the following structural forms of steel is the hardest? Austenite Ferrite Cementite Martensite |
Martensite |
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what is the structural form of steel that has been heated above its upper transformation temperature? Austenite Martensite Ferrite Cementite |
Austenite |
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which of the following refers to the region located to the right of the pure pearlite line on an iron-carbon phase diagram? Transfer temperature range Eutectoid region Hypoeutectoid region Hyperereutectoid region |
Hyperereutectoid region |
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rapid quenching produces a steel structure that is ___________. Ferritic Austenitic hard and strong soft ans ductile |
hard and strong |
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raising the carbon content of steel usually increases the _______ of the steel. ductility strength grain size none of the above |
strength |
