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A diffusion couple of two metals, A and B, was fashioned as shown: biffusion of A atoms A-B alloy Diffus ion of B aton After a 28-hour heat treatment at 1040°C (and subsequent cooling to room temperature), the concentration of A is 3.7 wt% at the 16.8-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 860°C for 28 hours, at what position will the composition be 3.7 wt% A? The preexponential and activation energy values for the diffusion of A in Bare 1.8 x 10 m/s and 159 kJ/mol, respectively. mm

A diffusion couple of two metals, A and B, was fashioned as shown: biffusion of A atoms A-B alloy Diffus ion of B aton After a 28-hour heat treatment at 1040°C (and subsequent cooling to room temperature), the concentration of A is 3.7 wt% at the 16.8-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 860°C for 28 hours, at what position will the composition be 3.7 wt% A? The preexponential and activation energy values for the diffusion of A in Bare 1.8 x 10 m/s and 159 kJ/mol, respectively. mm

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A diffusion couple of two metals, A and B, was fashioned as shown: biffusion of A at oms A-B alloy Diffusion of B atons After a 28-hour heat treatment at 1040°C (and subsequent cooling to room temperature), the concentration of A is 3.7 wt% at the 16.8-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 860°C for 28 hours, at what position will the composition be 3.7 wt% A? The preexponential and activation energy values for the diffusion of A in Bare 1.8 x 105 m/s and 159 kJ/mol, respectively. mm
Transcribed Image Text:A diffusion couple of two metals, A and B, was fashioned as shown: biffusion of A at oms A-B alloy Diffusion of B atons After a 28-hour heat treatment at 1040°C (and subsequent cooling to room temperature), the concentration of A is 3.7 wt% at the 16.8-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 860°C for 28 hours, at what position will the composition be 3.7 wt% A? The preexponential and activation energy values for the diffusion of A in Bare 1.8 x 105 m/s and 159 kJ/mol, respectively. mm
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