This preview shows page 1. Sign up to view the full content.
Unformatted text preview: A thick low carbon steel plate (composition 0.1 wt% C) is heated to 1000 C in a carbonaceous atmosphere (CH4) to be carburized (hardened by diffusing C). The carburization conditions keep the carbon surface concentration constant at 0.8% C (assume that only one surface of the plate is exposed). How long will it take to achieve a carbon concentration of 0.4 wt% at a 2 mm depth from the surface? [Fe at 1000C is FCC y-Fe.] 4. Do problem 5.27 in the text. 5. 6. Do problem 6.30 in the text. Do problem 7.}9 in the text. 7. 8. Do problem 8.23 in the text. ~ ,.-....
View Full Document
- Fall '10