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Unformatted text preview: b. interstitial solid solution of carbon in iron c. substitutional solid solution of carbon in iron 7. Solubility of carbon in austenite compared that in ferrite is a. much lower b. equal c. much higher 8. Pearltitic steel has a composition of a. 0.18% carbon b. 0.8% carbon c. 1% carbon 9. The very hard and brittle phase in iron-carbon system is a. ferrite b. austenite c. cementite 10. Microstructure of medium carbon steels cooled slowly consists of a. pearlite b. ferrite and pearlite c. cementite and pearlite 11. Rails and other hard and wear resistant steels are made of a. low carbon steel b. medium carbon steels c. high carbon steels 1 ( b) 2 ( c) 3 ( b ) 4 ( b) 5 ( a ) 6 ( b ) 7 ( c ) 8 ( b) 9 ( c ) 10 ( b) 11 ( c )...
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- Spring '08
- 0.8%, Medium Carbon Steels, Pearltitic steel, a. limited solubility, ferrite b. austenite