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4. (12 marks) This question pertains to the iron-iron carbide phase dingrane below 1%)() 2.11 43...
For a 0.84 wt% C steel just below the eutectoid temperature, calculate the following:
Material Science QuestionFor a 0.84 wt% C steel just below the eutectoid temperature,
calculate the following:The fractions of total ferrite and cementite phases, the
fractions of the proeutectoid cementite and pearlite, and the
fraction of eutectoid cementite
please answer question 2,3,4 A critical feature of steel is that a considerable amount of...
please answer question 2,3,4
A critical feature of steel is that a considerable amount of carbon can be dissolved in the austenite, phase, (up to 2.14 w/o at 1147"C), whereas carbon is essentially insoluble in ferrite, Cooling from point d to e, just above the eutectoid but still in the an increased fraction of the +y region, will produce phase and a microstructure similar to that shown: the particles precinitates out in the form af an intermetallic.compound called iron-carbide...
8. For an alloy with 1.25 wt% Cat temperature just below eutectoid, determine the following: a....
8. For an alloy with 1.25 wt% Cat temperature just below eutectoid, determine the following: a. The fractions of total ferrite and cementite phases b. The fractions of pro-eutectoid cementite and pearlite C. The fraction of eutectoid cementite 9. For an eutectoid steel, sketch and label a time-temperature path that will produce the following: a. 50% Pearlite & 50% Bainite b. 100% Martensite C. 100% Coarse Pearlite
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 =...
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...
The microstructure of an iron-carbon alloy consists of proeutectoid cementite and pearlite; the mass fractions of...
The microstructure of an iron-carbon alloy consists of proeutectoid cementite and pearlite; the mass fractions of these microconstituents are 0.12 and 0.88, respectively. Determine the concentration of carbon in this alloy. The iron-iron carbide phase diagram is shown in the Animated Figure 9.24. wt%C Composition = 0 wt% C Composition = 0 at% C Temperature = 400 °C Temperature = 752 F 2025 Composition (at% C) 10 15 160025 1600 97538 9493 °C 1400 1400 2500 | 1394 °C y+L...
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...
14) 4. Using the attached iron-iron carbide phase diagram, answer the following: a) Upon slow cooling...
14) 4. Using the attached iron-iron carbide phase diagram, answer the following: a) Upon slow cooling a 1.0 wt% carbon steel from 900°C: i) At what temperature does the carbide phase appear? ii) How much carbide is present at 729°C? iii) How much carbide is present at 725°C? b) Upon slow cooling a 0.5 wt% carbon steel from 900°C to 725°C: i) What are the compositions and quantities of the two phases present? ii) What are the compositions and quantities...
(12 Question 4: points: 4 pts each) Consider 3.0 kg of austenite containing 1.6 wt% C...
(12 Question 4: points: 4 pts each) Consider 3.0 kg of austenite containing 1.6 wt% C at 1100 °C, cooled to below 726 °C. (a) What is the proeutectoid phase? (b) How many kilograms of total ferrite and cementite form? (c) How many kilograms each of pearlite and the proeutectoid cementite form? Composition (at% C) 10 15 5 20 25 0 1600 1538°C 1493°C L 1400 S 1394°C 7+L 1200 1147°C 2.14 4.30 y, Austenite Temperature (°C) 1000 912°C y...
PROBLEM 11 (10 pts) Consider the phase diagram shown below. Be precise when you read the...
PROBLEM 11 (10 pts) Consider the phase diagram shown below. Be precise when you read the phase diagram. (a) (5 pts) Consider Fe - 1.9 wt% C steel at a temperature just below the eutectoid temperature. Determine the relative amount of the pearlite. Write the Lever rule expression used clearly. (b) (5 pts) Consider Fe - 0.6 wt% C steel at a temperature just below the eutectoid temperature. Determine the relative amount of the pearlite. Write the Lever rule expression...
Material Science QuestionFor a 0.84 wt% C steel just below the eutectoid temperature,
calculate the following:The fractions of total ferrite and cementite phases, the
fractions of the proeutectoid cementite and pearlite, and the
fraction of eutectoid cementite
please answer question 2,3,4
A critical feature of steel is that a considerable amount of carbon can be dissolved in the austenite, phase, (up to 2.14 w/o at 1147"C), whereas carbon is essentially insoluble in ferrite, Cooling from point d to e, just above the eutectoid but still in the an increased fraction of the +y region, will produce phase and a microstructure similar to that shown: the particles precinitates out in the form af an intermetallic.compound called iron-carbide...
8. For an alloy with 1.25 wt% Cat temperature just below eutectoid, determine the following: a. The fractions of total ferrite and cementite phases b. The fractions of pro-eutectoid cementite and pearlite C. The fraction of eutectoid cementite 9. For an eutectoid steel, sketch and label a time-temperature path that will produce the following: a. 50% Pearlite & 50% Bainite b. 100% Martensite C. 100% Coarse Pearlite
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 =...
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...
The microstructure of an iron-carbon alloy consists of proeutectoid cementite and pearlite; the mass fractions of these microconstituents are 0.12 and 0.88, respectively. Determine the concentration of carbon in this alloy. The iron-iron carbide phase diagram is shown in the Animated Figure 9.24. wt%C Composition = 0 wt% C Composition = 0 at% C Temperature = 400 °C Temperature = 752 F 2025 Composition (at% C) 10 15 160025 1600 97538 9493 °C 1400 1400 2500 | 1394 °C y+L...
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...
14) 4. Using the attached iron-iron carbide phase diagram, answer the following: a) Upon slow cooling a 1.0 wt% carbon steel from 900°C: i) At what temperature does the carbide phase appear? ii) How much carbide is present at 729°C? iii) How much carbide is present at 725°C? b) Upon slow cooling a 0.5 wt% carbon steel from 900°C to 725°C: i) What are the compositions and quantities of the two phases present? ii) What are the compositions and quantities...
(12 Question 4: points: 4 pts each) Consider 3.0 kg of austenite containing 1.6 wt% C at 1100 °C, cooled to below 726 °C. (a) What is the proeutectoid phase? (b) How many kilograms of total ferrite and cementite form? (c) How many kilograms each of pearlite and the proeutectoid cementite form? Composition (at% C) 10 15 5 20 25 0 1600 1538°C 1493°C L 1400 S 1394°C 7+L 1200 1147°C 2.14 4.30 y, Austenite Temperature (°C) 1000 912°C y...
PROBLEM 11 (10 pts) Consider the phase diagram shown below. Be precise when you read the phase diagram. (a) (5 pts) Consider Fe - 1.9 wt% C steel at a temperature just below the eutectoid temperature. Determine the relative amount of the pearlite. Write the Lever rule expression used clearly. (b) (5 pts) Consider Fe - 0.6 wt% C steel at a temperature just below the eutectoid temperature. Determine the relative amount of the pearlite. Write the Lever rule expression...
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