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A steel alloy contains 94.4 wt% Fe, 5.0 wt% Mo, and 0.6 wt% C. Using Animated...
Problem 9.70 (GO Tutorial) Consider 2.6 kg of a 99.4 wt% Fe-0.6 wt% C alloy that...
Problem 9.70 (GO Tutorial) Consider 2.6 kg of a 99.4 wt% Fe-0.6 wt% C alloy that is cooled to a temperature just below the eutectoid. The iron-iron carbide phase diagram is shown in the Animated Figure 9.24 (a) How many kilograms of proeutectoid ferrite form? kg [The tolerance is +/- 2.0%.] (b) How many kilograms of eutectoid ferrite form? kg [The tolerance is +/- 2.0%.] (c) How many kilograms of cementite form? kg [The tolerance is +/- 2.0%.] Composition =...
A 1.5-kg specimen of a 88 wt% Pb-12 wt% Sn alloy (Animated Figure 9.8) is heated to 220°C; at thi...
A 1.5-kg specimen of a 88 wt% Pb-12 wt% Sn alloy (Animated Figure 9.8) is heated to 220°C; at this temperature it is entirely an α-phase solid solution. The alloy is to be melted to the extent that 50% of the specimen is liquid, the remainder being the α phase. This may be accomplished either by heating the alloy or changing its composition while holding the temperature constant. (a) To what temperature must the specimen be heated? °C [The tolerance...
Using the isothermal transformation diagram for an Fe-C alloy of eutectoid composition (0.76 wt% C) shown...
Using the isothermal transformation diagram for an Fe-C alloy of eutectoid composition (0.76 wt% C) shown below and the mechanical properties versus carbon concentration diagrams shown on the next page if needed, perform the following tasks on separate small specimens (one for each task) of the same composition.
State the composition Fe and C of plain carbon eutectoid steel. Determine wt% for: α ferrite,...
State the composition Fe and C of plain carbon eutectoid steel. Determine wt% for: α ferrite, Fe3C cementite, assume equilibrium cooling process.
Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt%C steel alloy, specify...
Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt%C steel alloy, specify the nature of the final microstructure in terms of the microconstituents present) of a small specimen that has been subjected to the following temperature treatments. In each case assume that the specimen begins at 845 °C and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure. a) Rapidly cool to 700 degrees C, hold...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.%...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.% C are produced by melting and slowly cooling down to room temperature. By referring the phase diagram provided in figure 3, what would you expect in terms of phase changes (solidification sequence) in all three alloys as the temperature of the alloys reduces from melting temperature to room temperature? What will be the approximate weight fraction of each of those micro constituents at room...
Problem 10.38 (GO Tutorial) For a copper-silver alloy of composition 24 wt% Ag-76 wt% Cu and at 7...
Can someone help with this material science problem?
Problem 10.38 (GO Tutorial) For a copper-silver alloy of composition 24 wt% Ag-76 wt% Cu and at 775°C (1425°F) (see Animated Figure 10: (a) Determine the mass fractions of a and β phases Mass fraction a Mass fraction β- (b) Determine the mass fractions of primary a and eutectic microconstituents do the following: Mass fraction a primary Mass fraction eutectic (c) Determine the mass fraction of eutectic a Mass fraction a eutectic|...
Phase transformations and microstructural control in Fe-C alloy system (11 marks) 2. For the Fe-C alloy...
Phase transformations and microstructural control in Fe-C alloy system (11 marks) 2. For the Fe-C alloy of eutectoid composition (shown below in the left graph): 800 1100 Austenite Eutectoid temperature 700 1000 y Fe,C 600 900 500 800 00 727 C 700 300 Mistart) 600 Fe C 50% 200 M(50 % ) M190 % ) Fe C 500 100 400 101 104 105 1.0 2.C 10- 10 1 10 Composition (wt % C) Time (s) a) Name the possible types...
Determine the amount of pearlite in 99.5% Fe - 0.5% C alloy that is cooled slowly...
Determine the amount of pearlite in 99.5% Fe - 0.5% C
alloy that is cooled slowly from 870 degrees Celsius to just below
the eutectoid temperature. Also determine the amount of cementite
and ferrite at 726 degrees Celsius. Use 100g of alloy as your
base.
Fe Fe C Phase Diagram 1400 Entectic point 1200- 1147? 2.14 4.30 ? Ferrite ? Austenite ? Ferrite FeC Cementite 7-Austenite 912C 74 Fe-C Ledeburte ? + Fee Pearlite 800 72T C proint 0.022 600...
material Question 3: For an Iron-Iron Carbide (Fe-FesC) phase diagram, answer the following for 5.0 wt%...
material
Question 3: For an Iron-Iron Carbide (Fe-FesC) phase diagram, answer the following for 5.0 wt% C 10 Points How many phases are possible at this composition and what will be the melting temperature at this a) composition? b) the alloy is hypocutectic or hypereutectoid at 800°C at this composition ? c) the alloy is hypocutectic or hypereutectoid at 600°C at this composition? d) composition and amount of each phase at 1250°C at this composition e) composition and amount of...
Problem 9.70 (GO Tutorial) Consider 2.6 kg of a 99.4 wt% Fe-0.6 wt% C alloy that is cooled to a temperature just below the eutectoid. The iron-iron carbide phase diagram is shown in the Animated Figure 9.24 (a) How many kilograms of proeutectoid ferrite form? kg [The tolerance is +/- 2.0%.] (b) How many kilograms of eutectoid ferrite form? kg [The tolerance is +/- 2.0%.] (c) How many kilograms of cementite form? kg [The tolerance is +/- 2.0%.] Composition =...
A 1.5-kg specimen of a 88 wt% Pb-12 wt% Sn alloy (Animated Figure 9.8) is heated to 220°C; at this temperature it is entirely an α-phase solid solution. The alloy is to be melted to the extent that 50% of the specimen is liquid, the remainder being the α phase. This may be accomplished either by heating the alloy or changing its composition while holding the temperature constant. (a) To what temperature must the specimen be heated? °C [The tolerance...
Using the isothermal transformation diagram for an Fe-C alloy of eutectoid composition (0.76 wt% C) shown below and the mechanical properties versus carbon concentration diagrams shown on the next page if needed, perform the following tasks on separate small specimens (one for each task) of the same composition.
Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt%C steel alloy, specify the nature of the final microstructure in terms of the microconstituents present) of a small specimen that has been subjected to the following temperature treatments. In each case assume that the specimen begins at 845 °C and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure. a) Rapidly cool to 700 degrees C, hold...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.% C are produced by melting and slowly cooling down to room temperature. By referring the phase diagram provided in figure 3, what would you expect in terms of phase changes (solidification sequence) in all three alloys as the temperature of the alloys reduces from melting temperature to room temperature? What will be the approximate weight fraction of each of those micro constituents at room...
Can someone help with this material science problem?
Problem 10.38 (GO Tutorial) For a copper-silver alloy of composition 24 wt% Ag-76 wt% Cu and at 775°C (1425°F) (see Animated Figure 10: (a) Determine the mass fractions of a and β phases Mass fraction a Mass fraction β- (b) Determine the mass fractions of primary a and eutectic microconstituents do the following: Mass fraction a primary Mass fraction eutectic (c) Determine the mass fraction of eutectic a Mass fraction a eutectic|...
Phase transformations and microstructural control in Fe-C alloy system (11 marks) 2. For the Fe-C alloy of eutectoid composition (shown below in the left graph): 800 1100 Austenite Eutectoid temperature 700 1000 y Fe,C 600 900 500 800 00 727 C 700 300 Mistart) 600 Fe C 50% 200 M(50 % ) M190 % ) Fe C 500 100 400 101 104 105 1.0 2.C 10- 10 1 10 Composition (wt % C) Time (s) a) Name the possible types...
Determine the amount of pearlite in 99.5% Fe - 0.5% C
alloy that is cooled slowly from 870 degrees Celsius to just below
the eutectoid temperature. Also determine the amount of cementite
and ferrite at 726 degrees Celsius. Use 100g of alloy as your
base.
Fe Fe C Phase Diagram 1400 Entectic point 1200- 1147? 2.14 4.30 ? Ferrite ? Austenite ? Ferrite FeC Cementite 7-Austenite 912C 74 Fe-C Ledeburte ? + Fee Pearlite 800 72T C proint 0.022 600...
material
Question 3: For an Iron-Iron Carbide (Fe-FesC) phase diagram, answer the following for 5.0 wt% C 10 Points How many phases are possible at this composition and what will be the melting temperature at this a) composition? b) the alloy is hypocutectic or hypereutectoid at 800°C at this composition ? c) the alloy is hypocutectic or hypereutectoid at 600°C at this composition? d) composition and amount of each phase at 1250°C at this composition e) composition and amount of...
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