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10. What is the wt% carbon needed in a steel (Fe-C alloy) in order to form 60% proeutectoid prima...
s. (15 points) Four kilograms ) what temperature muistns of steel containing 0.50 wt% carbon is...
s. (15 points) Four kilograms ) what temperature muistns of steel containing 0.50 wt% carbon is to be heat treated. b) if slowly cooled from the Austenite phase, what jsrthe proeutectoid phase that is formed? c) how many kilograms of Pearlite will be in the steel when cooled to room temperature? d) compute the mass fractions 6t Péfrnite and Cemente in Peartite e) the microstructure of a different iron-carbon alloy consists of proeutectoid ferrite and pearlite. The containing 0.5 it...
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...
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 =...
Q2. Below is shown the isothermal transformation diagram for a 0.45 wt% C iron-carbon alloy. List...
Q2. Below is shown the isothermal transformation diagram for a 0.45 wt% C iron-carbon alloy. List the microconstituent(s) present for the heat treatment labeled on this diagram. It is not necessary to state the proportion(s) of the microconstituents. 6 options are given for each case. Pick the correct components and briefly explain your answer. (15 points) 900 1600 HIV 500 ZA+B (c) Temperature (°C) (6) A 6 Temperature (°F) Mstart) 300M(50%) ©) b) (90%) TTTT (b) (c) '(a) 103 (b)...
The phase diagram for the iron-carbon Fe-C system is shown below. use it to answer the...
The phase diagram for the iron-carbon Fe-C system is shown
below. use it to answer the following questions
a) How many different solid allotropes (phases) does pure iron
have?
b) what is the maximum carbon solubility of carbon in
austentite?
c) what is the maximum carbon solubility of carbon in
ferrite?
d)On cooling the following phase reaction occurs at 0.76% C and
727*c y--> alpha + Fe3C. On cooling what phase reaction occurs
at .16% C and 1493*c?
e)For a...
A steel alloy contains 94.4 wt% Fe, 5.0 wt% Mo, and 0.6 wt% C. Using Animated...
A steel alloy contains 94.4 wt% Fe, 5.0 wt% Mo, and 0.6 wt% C. Using Animated Figure 9.34 and Animated Figure 9.35 determine the following: (a) The eutectoid temperature of this alloy. C [The absolute tolerance is +/- 20.] (b) The eutectoid composition. wt%C [The absolute tolerance is +/- 0.02.]
What is the proeutectoid phase for an iron-carbon alloy in which the mass fractions of total...
What is the proeutectoid phase for an iron-carbon alloy in which the mass fractions of total ferrite and total cementite are 0.96 and 0.04, respectively? See Animated Figure 9.24 Part 1 What are the concentrations of carbon in a-ferrite and FeyCat a temperature just below 727°C? You may want to use Animated Figure 9.24 (a) C = i (b) Cre,c = i Save for Later Attempts:0 of 1 used Submit Answer Part 2 Compute the composition of an iron-carbon alloy...
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...
please explain with the figure 2 A plain plain carbon steel of unknown composition is cooled...
please explain with the figure
2 A plain plain carbon steel of unknown composition is cooled in the furnace from w oning temperature. At room temperature, the percentage of primary (proeutectoid) ferrite() monin this steel is found to be 27%. Use Figure 1 and answer the following questions. What is the concentration of carbon present in this steel? b) Which other phase or phases will you find in the structure of this steel? c) Calculate the amount of the phase...
s. (15 points) Four kilograms ) what temperature muistns of steel containing 0.50 wt% carbon is to be heat treated. b) if slowly cooled from the Austenite phase, what jsrthe proeutectoid phase that is formed? c) how many kilograms of Pearlite will be in the steel when cooled to room temperature? d) compute the mass fractions 6t Péfrnite and Cemente in Peartite e) the microstructure of a different iron-carbon alloy consists of proeutectoid ferrite and pearlite. The containing 0.5 it...
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...
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 =...
Q2. Below is shown the isothermal transformation diagram for a 0.45 wt% C iron-carbon alloy. List the microconstituent(s) present for the heat treatment labeled on this diagram. It is not necessary to state the proportion(s) of the microconstituents. 6 options are given for each case. Pick the correct components and briefly explain your answer. (15 points) 900 1600 HIV 500 ZA+B (c) Temperature (°C) (6) A 6 Temperature (°F) Mstart) 300M(50%) ©) b) (90%) TTTT (b) (c) '(a) 103 (b)...
The phase diagram for the iron-carbon Fe-C system is shown
below. use it to answer the following questions
a) How many different solid allotropes (phases) does pure iron
have?
b) what is the maximum carbon solubility of carbon in
austentite?
c) what is the maximum carbon solubility of carbon in
ferrite?
d)On cooling the following phase reaction occurs at 0.76% C and
727*c y--> alpha + Fe3C. On cooling what phase reaction occurs
at .16% C and 1493*c?
e)For a...
A steel alloy contains 94.4 wt% Fe, 5.0 wt% Mo, and 0.6 wt% C. Using Animated Figure 9.34 and Animated Figure 9.35 determine the following: (a) The eutectoid temperature of this alloy. C [The absolute tolerance is +/- 20.] (b) The eutectoid composition. wt%C [The absolute tolerance is +/- 0.02.]
What is the proeutectoid phase for an iron-carbon alloy in which the mass fractions of total ferrite and total cementite are 0.96 and 0.04, respectively? See Animated Figure 9.24 Part 1 What are the concentrations of carbon in a-ferrite and FeyCat a temperature just below 727°C? You may want to use Animated Figure 9.24 (a) C = i (b) Cre,c = i Save for Later Attempts:0 of 1 used Submit Answer Part 2 Compute the composition of an iron-carbon alloy...
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...
please explain with the figure
2 A plain plain carbon steel of unknown composition is cooled in the furnace from w oning temperature. At room temperature, the percentage of primary (proeutectoid) ferrite() monin this steel is found to be 27%. Use Figure 1 and answer the following questions. What is the concentration of carbon present in this steel? b) Which other phase or phases will you find in the structure of this steel? c) Calculate the amount of the phase...
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