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The table below shows the table of diffusion data of various elements. Calculate the Diffusion Coefficient for the inter-diffusion of carbon in a-Iron at 950° C. How would that value compare to y-iron and why? Diffusing Species Host Metal Do(m²/s) Qa(J/mol) Interstitial Diffusion 8822 No No Fes Fe Cud Als Mg Zn Mod Nid. Fe (a or BCC) 1.1 x 10-6 Fe (y or FCC) 2.3 x 10-5 Fe (a or BCC) 5.0 x 10-7 Fe (y or FCC)a 9.1 x 10-5 Self-Diffusion Fe (a or BCC)a 2.8 x 10-4 251,000 Fe (y or FCC)a 5.0 x 10-5 284,000 Cu (FCC) 2.5 x 10-5 200,000 AÍ (FCC) 2.3 x 104 144.000 136,000 Mg (HCP) Zn (HCP) Mo (BCC) Ni (FCC) 1.5 x 104 1.5 x 10-5 1.8 x 104 1.9 x 10-4 87,400 148,000 77,000 168,000 94,000 461,000 285,000

The table below shows the table of diffusion data of various elements. Calculate the Diffusion Coefficient for the inter-diffusion of carbon in a-Iron at 950° C. How would that value compare to y-iron and why? Diffusing Species Host Metal Do(m²/s) Qa(J/mol) Interstitial Diffusion 8822 No No Fes Fe Cud Als Mg Zn Mod Nid. Fe (a or BCC) 1.1 x 10-6 Fe (y or FCC) 2.3 x 10-5 Fe (a or BCC) 5.0 x 10-7 Fe (y or FCC)a 9.1 x 10-5 Self-Diffusion Fe (a or BCC)a 2.8 x 10-4 251,000 Fe (y or FCC)a 5.0 x 10-5 284,000 Cu (FCC) 2.5 x 10-5 200,000 AÍ (FCC) 2.3 x 104 144.000 136,000 Mg (HCP) Zn (HCP) Mo (BCC) Ni (FCC) 1.5 x 104 1.5 x 10-5 1.8 x 104 1.9 x 10-4 87,400 148,000 77,000 168,000 94,000 461,000 285,000

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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The table below shows the table of diffusion data of various elements. Calculate the Diffusion Coefficient for the inter-diffusion of carbon in a-Iron at 950° C. How would that value compare to y-iron and why? Diffusing Species Host Metal Do(m²/s) Qa(J/mol) Interstitial Diffusion في Co No Ne Fes Fe Cud Als Mg Zn Mod Nid Fe (a or BCC) 1.1 x 10-6 Fe (y or FCC) 2.3 x 10-5 Fe (a or BCC) 5.0 x 10-7 Fe (y or FCC) 9.1 x 10-5 Self-Diffusion Fe (a or BCC) Fe (y or FCC) Cu (FCC) AÍ (FCC) Mg (HCP) Zn (HCP) Mo (BCC) Ni (FCC) 87,400 148,000 77,000 168,000 2.8 x 10-4 251,000 5.0 x 10-5 284,000 2.5 x 10-5 2.3 x 10-4 1.5 x 104 1.5 x 10-5 1.8 x 104 1.9 x 10-4 200,000 144,000 136,000 94,000 461,000 285,000
Transcribed Image Text:The table below shows the table of diffusion data of various elements. Calculate the Diffusion Coefficient for the inter-diffusion of carbon in a-Iron at 950° C. How would that value compare to y-iron and why? Diffusing Species Host Metal Do(m²/s) Qa(J/mol) Interstitial Diffusion في Co No Ne Fes Fe Cud Als Mg Zn Mod Nid Fe (a or BCC) 1.1 x 10-6 Fe (y or FCC) 2.3 x 10-5 Fe (a or BCC) 5.0 x 10-7 Fe (y or FCC) 9.1 x 10-5 Self-Diffusion Fe (a or BCC) Fe (y or FCC) Cu (FCC) AÍ (FCC) Mg (HCP) Zn (HCP) Mo (BCC) Ni (FCC) 87,400 148,000 77,000 168,000 2.8 x 10-4 251,000 5.0 x 10-5 284,000 2.5 x 10-5 2.3 x 10-4 1.5 x 104 1.5 x 10-5 1.8 x 104 1.9 x 10-4 200,000 144,000 136,000 94,000 461,000 285,000
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