heeelp The solubility of carbon in a-Fe (bcc) is limited to no more than 0.1 wt%
ID: 823630 • Letter: H
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heeelp
The solubility of carbon in a-Fe (bcc) is limited to no more than 0.1 wt% C. Below the solubility limit, what sites do the C atoms occupy in the Fe crystal lattice? [one answer] interstitial sites comer sites body-center sites other Diffusivity is a measure of diffusion rate and its units are m2/s. From Figure 5.14, estimate the dififusivities of carbon in bcc iron and carbon in aluminum 1000degreeC. In wbirh material from part (a) do C atoms diffuse more rapidly and by how many ordetso magnitude?Explanation / Answer
a) interstitial sites
The carbon atoms fill the interstitial sites.. the size of the carbon atm is twice teh size f the interstitial hole.. this causes a lot of strain..
cnsequently the solubility of carbon is also low in Iron.
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