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Posted: **Sat Feb 19, 2022 3:34 pm**

: What Temperature Is Required To Obtain 0 60 C At A Distance Of 0 5 Mm Beneath The Surface Of A 0 18 C Steel In 2 Hours 1 (34.42 KiB) Viewed 53 times

What temperature is required to obtain 0.60% C at a distance of 0.5 mm beneath the surface of a 0.18% C steel in 2 hours, when 1.2% C is present at the surface? Given: Cx Со х * = 1 -erf = Cs Со 2Dt where: D = Doexp(-RE Q RT Where: R = 8.31 J/mol.K Do = 0.00005 m/s Q = 284 kJ/mol