1 files changed, 0 insertions, 11 deletions
diff --git a/Materials_science_and_engineering_an_introduction/CH9.ipynb b/Materials_science_and_engineering_an_introduction/CH9.ipynb
index 0953b608..0ddab2a7 100644
--- a/Materials_science_and_engineering_an_introduction/CH9.ipynb
+++ b/Materials_science_and_engineering_an_introduction/CH9.ipynb
@@ -27,15 +27,11 @@
      "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",
@@ -50,7 +46,6 @@
       "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",
@@ -87,16 +82,11 @@
      "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",
@@ -107,7 +97,6 @@
       "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",