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diff --git a/Materials_science_and_engineering_an_introduction/CH9.ipynb b/Materials_science_and_engineering_an_introduction/CH9.ipynb new file mode 100644 index 00000000..0953b608 --- /dev/null +++ b/Materials_science_and_engineering_an_introduction/CH9.ipynb @@ -0,0 +1,148 @@ +{
+ "metadata": {
+ "name": "CH9"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 9: Phase Diagram"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 3,
+ "metadata": {},
+ "source": [
+ "Example 9.3 Page No 273"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#(a)Determination of Phases Present\n",
+ "#(b)Computation of Phase Compositions\n",
+ "\n",
+ "#Given\n",
+ "C1=40.0 # Overall alloy composition\n",
+ "Cb=98.0\n",
+ "Ca=10.0\n",
+ "\n",
+ "#Calculation\n",
+ "Wa=(Cb-C1)/(Cb-Ca)\n",
+ "Wb=(C1-Ca)/(Cb-Ca)\n",
+ "d_Sn=7.24 # in g/cm**3 density of tin\n",
+ "d_Pb=11.23 # in g/cm**3 density of lead\n",
+ "Ca_Sn=10.0\n",
+ "Ca_Pb=90.0\n",
+ "Cb_Sn=98.0\n",
+ "Cb_Pb=2.0\n",
+ "d_a=100/((Ca_Sn/d_Sn)+(Ca_Pb/d_Pb))\n",
+ "d_b=100/((Cb_Sn/d_Sn)+(Cb_Pb/d_Pb))\n",
+ "Va=Wa/(d_a*((Wa/d_a)+(Wb/d_b)))\n",
+ "Vb=Wb/(d_b*((Wa/d_a)+(Wb/d_b)))\n",
+ "\n",
+ "\n",
+ "#Result\n",
+ "print\"Mass fractions for alpha and beta phases are respectively\",round(Wa,2),\"and\",round(Wb,2)\n",
+ "print\"Density of alpha phase is \",round(d_a,2),\"g/cm**3\"\n",
+ "print\"Density of beta phase is \",round(d_b,2),\"g/cm**3\"\n",
+ "print\"Volume fraction of alpha phase \",round(Va,2),\"g/cm**3\"\n",
+ "print\"Volume fraction of beta phase \",round(Vb,2)\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Mass fractions for alpha and beta phases are respectively 0.66 and 0.34\n",
+ "Density of alpha phase is 10.64 g/cm**3\n",
+ "Density of beta phase is 7.29 g/cm**3\n",
+ "Volume fraction of alpha phase 0.57 g/cm**3\n",
+ "Volume fraction of beta phase 0.43\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 3,
+ "metadata": {},
+ "source": [
+ "Example 9.4 Page No 299"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#(a)Determining ferrite and cementite phase\n",
+ "#(b)Determining proeutectoid ferrite and pearlite\n",
+ "#(c)Determining eutectoid ferrite\n",
+ "\n",
+ "#Given\n",
+ "C0=0.35\n",
+ "Ca=0.022\n",
+ "C_Fe3C=6.7\n",
+ "\n",
+ "#Calculation\n",
+ "Wa=(C_Fe3C-C0)/(C_Fe3C-Ca)\n",
+ "W_Fe3C=(C0-Ca)/(C_Fe3C-Ca)\n",
+ "C_p=0.76\n",
+ "Wp=(C0-Ca)/(C_p-Ca)\n",
+ "W_a=(C_p-C0)/(C_p-Ca)\n",
+ "Wp=(C0-Ca)/(C_p-Ca)\n",
+ "W_a=(C_p-C0)/(C_p-Ca)\n",
+ "Wa=(C_Fe3C-C0)/(C_Fe3C-Ca)\n",
+ "Wae=Wa-W_a\n",
+ "\n",
+ "#result\n",
+ "print\"Mass fraction of total ferritic phase is\",round(Wa,2)\n",
+ "print\"Mass fraction of Fe3C is\",round(W_Fe3C,2)\n",
+ "print\"Mass fraction of Pearlite is\",round(Wp,2)\n",
+ "print\"ass fraction of proeutectoid ferrite is\",round(W_a,2)\n",
+ "print\"Mass fraction of eutectoid ferrite is\",round(Wae,2)\n",
+ "\n",
+ "\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Mass fraction of total ferritic phase is 0.95\n",
+ "Mass fraction of Fe3C is 0.05\n",
+ "Mass fraction of Pearlite is 0.44\n",
+ "ass fraction of proeutectoid ferrite is 0.56\n",
+ "Mass fraction of eutectoid ferrite is 0.4\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [],
+ "language": "python",
+ "metadata": {},
+ "outputs": []
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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