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# 4. (20): We have solid steel containing Ti and â‚¬. Ti and â‚¬ can easily make stable compound called TiC which can im- prove the strength of steel.When pur...

## Question

###### 4. (20): We have solid steel containing Ti and â‚¬. Ti and â‚¬ can easily make stable compound called TiC which can im- prove the strength of steel.When pure Fe is in equilibrium with pure â‚¬ at [2000C. the equilibrium C content in solid Fe is 0.036 mole fraction. Assume that C shows the Henrian behavior in solid Fe until this solubility When Fe is equilibrated with 50% CO and 50% CO: mixture at 12009C, the solubility of â‚¬ in solid Fe is 2.0E-05 mole fraction (iii) Ti(s) + C(s) TiC(s): AG&#x

4. (20): We have solid steel containing Ti and â‚¬. Ti and â‚¬ can easily make stable compound called TiC which can im- prove the strength of steel. When pure Fe is in equilibrium with pure â‚¬ at [2000C. the equilibrium C content in solid Fe is 0.036 mole fraction. Assume that C shows the Henrian behavior in solid Fe until this solubility When Fe is equilibrated with 50% CO and 50% CO: mixture at 12009C, the solubility of â‚¬ in solid Fe is 2.0E-05 mole fraction (iii) Ti(s) + C(s) TiC(s): AG' = -164262.3 Jmol at 1200PC The Henrian activity coefficient of Ti(s) in solid Fe 5.1789E-02 Calculate what is the composition of gas mixture of CO and COz to achieve this C content (in above question) As- sume no oxidation reaction occurs_ When Ti solubility in Fe is 0.001 mole fraction; what is the minimum content to form TiC phase in solid Fe at 1200"C 249 #

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