What temperature is required to obtain 0.4%C at adistance of 0.3 mm beneath the surface of a 0.22% Csteel in 2h, when 1.1% C is present at the surface?Assume that the iron is FCC. (Please see figure 5.12below for diffusion coefficient data. Please use your notesfor a table of erf() function valuesDiffusion coefficient D (cm²/s)ܐܐܐܐ10-10-510-10-1010-1110-1210-1310-1410-15Temperature (°C)2000 1500 1200 1000 900 800 700 600Cin graphiteMg in MgOCa in CaoH in FCC ironC in FCC ironFe in FCC ironFe in BCC ironH in BCC ironC in BCC ironFe in FeO5005 6 7 8 9 10 11 12 13104T(K)Figure 5-12 The diffusion coefficient D as a function of reciprocal temperature for somemetals and ceramics. In this Arrhenius plot, D represents the rate of the diffusion process.A steep slope denotes a high activation energy.

What temperature is required to obtain 0.4%C at a distance of 0.3 mm beneath the surface of a 0.22% C steel in 2h, when 1.1% C is present at the surface? Assume that the iron is FCC. (Please see figure 5.12 below for diffusion coefficient data. Please use your notes for a table of erf() function values) 10-3 Temperature (°C) 2000 1500 1200 1000 900 800 700 H in no 600 500

What temperature is required to obtain 0.4%C at a distance of 0.3 mm beneath the surface of a 0.22% C steel in 2h, when 1.1% C is present at the surface? Assume that the iron is FCC. (Please see figure 5.12 below for diffusion coefficient data. Please use your notes for a table of erf() function values) 10-3 Temperature (°C) 2000 1500 1200 1000 900 800 700 H in no 600 500

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter3: The Structure Of Real Materials

Section: Chapter Questions

Problem 3.12P

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