Homework Answers
A- Proeutectoid ferrite + martensite
B- Proeutectoid ferrite+ pearlite+ martensite.
I am pretty sure of these choices. Hope this is helpful to you. Thank you.
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Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt%C steel alloy, specify...
X Incorrect. Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt% steel...
X Incorrect. Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt% 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 250 degrees...
1. Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the nature...
1. Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the nature of the final microstructure (in terms of microconstituents present and approximate percentages of each) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 760°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 400°C, hold for...
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)...
Using the isothermal transformation diagram for an alloy steel (type 4340) specify the nature of the final microstruct...
Using the isothermal transformation diagram for an alloy steel (type 4340) specify the nature of the final microstructure (in terms of micro-constituents present and approximate percentages) of a small specimen that has been subjected to the following time-temperature treatments: In each case assume that the specimen begins at 760°C and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenite structure. (a) (a) Rapidly cool to 400°C, hold for 10 seconds, and...
Using the isothermal transformation diagram for a 0.45 wt% Csteel alloy (Figure below, from Callister &Rethwisch),...
Using the isothermal transformation diagram for a 0.45 wt% Csteel alloy (Figure below, from Callister &Rethwisch), determine the final microstructure (in terms of just the micreconstituents present) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 845°C (1550°F), and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure. (a) Rapidly cool to 450°C (840°F), hold for 10...
Detailed Subject: Materials Science and Engineering Please make a full explanation and plot in the isothermal...
Detailed Subject: Materials Science and Engineering
Please make a full explanation and plot in the isothermal
diagrams using the graph above.
Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition (Figure 10.22), specify the nature of the final microstructure (in terms of microconstituents present and approximate percentages of each) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 760°C (1400°F) and that it has...
the isothermal transformation diagram carbon alloy of eutectoid composition specify the nature of the final mi-...
the isothermal transformation diagram carbon alloy of eutectoid composition specify the nature of the final mi- 11.1 for an e 11.23), r11.23), specifty the nature of the final mi- 11.1 (Figure ture (in terms of microconstituents pres- and approximate percentages of each) of a small specimen that has been subjected to the fol- lowing time-temperature treatments. In each case assume that the specimen begins at 760°C (1400℉) and that it has been held,at this tempera- ture long enough to have...
QUESTION 4 (10 points) a. Using the isothermal transformation diagram for iron carbon alloy of eutectoid...
QUESTION 4 (10 points) a. Using the isothermal transformation diagram for iron carbon alloy of eutectoid composition. Specify and sketch the resulting microstructure from the following heat treatments: (Assume that, in each case, the specimen begins at 760 C and that it attains a homogeneous austenite structure) (N.B. ATTACH THE T-T-T DIAGRAM SHEET WITH THE ANSWER SHEET) 11) Cool rapidly to 370 C, hold for 100 s, and then quench to room temperature. [2] Cool rapidly to 250 C, hold...
Please show all work! Thanks! Isothermal transformation diagram is given below. 13.8-1 Using the isothermal transformation...
Please show all work! Thanks! Isothermal transformation diagram
is given below.
13.8-1 Using the isothermal transformation diagram for a carbon steel of eutectoid composition (obtained from the In specify the final microstructure (in terms of microstructure pres tituent present) for small sa ent and approximate percentages of each phase or con. uent present) for small samples allowed to equilibrate at 760°C (1400 F) following each of the cooling a. Cool rapidly to 700°C (1290°F), hold for 10 seconds, then quench...
(1s) The TTT d austenitized. Determine the final amount (approximate percentages) of each microstructure, and show basic path (draw on charts). 6. agram for an iron-carbon alloy w, h 0.76%C steel is...
(1s) The TTT d austenitized. Determine the final amount (approximate percentages) of each microstructure, and show basic path (draw on charts). 6. agram for an iron-carbon alloy w, h 0.76%C steel is given. Assume that the specimen gans above 800°C for each case and that it has been held at this temperature long enough to be fully microstructure (such as bauxite, magnetite, bainite, pearlite, um, martensite, spheroidite, cementite). Must specify microstructure name (not a letter). 800 a) Sample 1- Decrease...
X Incorrect. Using the Animated Figure 10.40, the isothermal transformation diagram for a 0.45 wt% 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 250 degrees...
1. Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the nature of the final microstructure (in terms of microconstituents present and approximate percentages of each) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 760°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 400°C, hold for...
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)...
Using the isothermal transformation diagram for an alloy steel (type 4340) specify the nature of the final microstructure (in terms of micro-constituents present and approximate percentages) of a small specimen that has been subjected to the following time-temperature treatments: In each case assume that the specimen begins at 760°C and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenite structure. (a) (a) Rapidly cool to 400°C, hold for 10 seconds, and...
Using the isothermal transformation diagram for a 0.45 wt% Csteel alloy (Figure below, from Callister &Rethwisch), determine the final microstructure (in terms of just the micreconstituents present) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 845°C (1550°F), and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure. (a) Rapidly cool to 450°C (840°F), hold for 10...
Detailed Subject: Materials Science and Engineering
Please make a full explanation and plot in the isothermal
diagrams using the graph above.
Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition (Figure 10.22), specify the nature of the final microstructure (in terms of microconstituents present and approximate percentages of each) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 760°C (1400°F) and that it has...
the isothermal transformation diagram carbon alloy of eutectoid composition specify the nature of the final mi- 11.1 for an e 11.23), r11.23), specifty the nature of the final mi- 11.1 (Figure ture (in terms of microconstituents pres- and approximate percentages of each) of a small specimen that has been subjected to the fol- lowing time-temperature treatments. In each case assume that the specimen begins at 760°C (1400℉) and that it has been held,at this tempera- ture long enough to have...
QUESTION 4 (10 points) a. Using the isothermal transformation diagram for iron carbon alloy of eutectoid composition. Specify and sketch the resulting microstructure from the following heat treatments: (Assume that, in each case, the specimen begins at 760 C and that it attains a homogeneous austenite structure) (N.B. ATTACH THE T-T-T DIAGRAM SHEET WITH THE ANSWER SHEET) 11) Cool rapidly to 370 C, hold for 100 s, and then quench to room temperature. [2] Cool rapidly to 250 C, hold...
Please show all work! Thanks! Isothermal transformation diagram
is given below.
13.8-1 Using the isothermal transformation diagram for a carbon steel of eutectoid composition (obtained from the In specify the final microstructure (in terms of microstructure pres tituent present) for small sa ent and approximate percentages of each phase or con. uent present) for small samples allowed to equilibrate at 760°C (1400 F) following each of the cooling a. Cool rapidly to 700°C (1290°F), hold for 10 seconds, then quench...
(1s) The TTT d austenitized. Determine the final amount (approximate percentages) of each microstructure, and show basic path (draw on charts). 6. agram for an iron-carbon alloy w, h 0.76%C steel is given. Assume that the specimen gans above 800°C for each case and that it has been held at this temperature long enough to be fully microstructure (such as bauxite, magnetite, bainite, pearlite, um, martensite, spheroidite, cementite). Must specify microstructure name (not a letter). 800 a) Sample 1- Decrease...
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