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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 07 : Phase Diagrams"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.1, Page No 149"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#initialisation of variables\n",
"c = 2.0 # number of components\n",
"\n",
"#Calculations\n",
"for n in range(1,5):\n",
" p = (c-1) +2 # Total variables\n",
" f = c-n+2 # degree of freedom\n",
" print(\"Degree of freedom for two components when number of phases is %d is %d\" %(n, f))\n",
" \n",
"#Results\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Degree of freedom for two components when number of phases is 1 is 3\n",
"Degree of freedom for two components when number of phases is 2 is 2\n",
"Degree of freedom for two components when number of phases is 3 is 1\n",
"Degree of freedom for two components when number of phases is 4 is 0\n"
]
}
],
"prompt_number": 14
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.2, Page No 152"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#initialisation of variables\n",
"p = 4.0\t\t# number of phases of system\n",
"f = 0 # number of degree of system\n",
"\n",
"#Calculations\n",
"C = f+p-1 # components number\n",
"\n",
"#Results\n",
"print(\"Minimum number of components in system is %d\" %C)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Minimum number of components in system is 3\n"
]
}
],
"prompt_number": 15
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.3, Page No 160"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#initialisation of variables\n",
"L = 23.3 \t\t# % composition of L\n",
"a = 3.5 # concentration of Nacl in sea water\n",
"ice = 0 # % composition of ice\n",
"\n",
"#Calculations\n",
"f_ice = (L-a)/(L-ice)\n",
"\n",
"#Results\n",
"print(\"Fractional amount of pure water that can be extracted from sea water is %0.2f\" %f_ice)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Fractional amount of pure water that can be extracted from sea water is 0.85\n"
]
}
],
"prompt_number": 16
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.5 Page No 167"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#initialisation of variables\n",
"a = 0 \t\t# limiting value\n",
"b = 0.8 # limiting value\n",
"c = 0.6 # percentage composition of carbon\n",
"f = 0.88 # fraction of ferrite in a eutectoid steel\n",
"\n",
"#Calculations\n",
"f_pro_alpha = (b-c)/(b-a)\n",
"f_perlite = 1 - f_pro_alpha\n",
"f_eut = f*f_perlite\n",
"\n",
"#Results\n",
"print(\"Composition of proeutectoid ferrite is %0.2f\" %f_pro_alpha)\n",
"print(\"Composition of eutectoid ferrite is %0.2f\" %f_eut)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Composition of proeutectoid ferrite is 0.25\n",
"Composition of eutectoid ferrite is 0.66\n"
]
}
],
"prompt_number": 17
}
],
"metadata": {}
}
]
}
|
