Homework Answers
Add Answer to:
1. What microconstituents would be present in the 1080 steel on the left if it was...
please make sure it is correct What are the microstrucutures present in a 1040 steel at...
please make sure it is correct
What are the microstrucutures present in a 1040 steel at 500 °C ? 1100 2000 Austenite 1000 1850 900 Ferrite 1700 Aystenite and Ferite 1550 Temperature (°C) 300 Austenite and Cementit Temperature (°F) 1400 1250 Ferrite and Cementite Ferrite and Cementie 1100 WE 500 WF02 06 0.8 1 1.2 1.6 0.4 W 950 2 Wc Carbon (Wt percent) Cementite and pearlite OL Pearlite O II. Ferrite O III. o iv. Ferrite and pearlite
please make sure it is correct What are the phase present in a 1040 steel at...
please make sure it is correct
What are the phase present in a 1040 steel at 500 °C ? Composition Cat C 10 15 20 25 1600 11538 C 2493C 1400 2500 1394-C y 1200 11470 2.14 4.30 7. Austenite 2000 Temperature ("C) Temperature (°F) 1000 912 C y+ Fezc 800 1500 727 C y 0.76 600 0.022 a, Ferrite a Fejc Cementite Fez 1000 400 5 6 6.70 Fe 3 4 Composition to Ferrite OL Cementite O II Ferrite...
6.8. The heat treatments noted below are carried out in 1080 steel. In each case what phases will...
Phase, TTT, and CCT diagrams provided
6.8. The heat treatments noted below are carried out in 1080 steel. In each case what phases will be present at the end of the treatment? a. Austenitize at 750 deg C; quench to 0 deg C in 1s. b. Austenitize at 750 deg C; rapid quench to 650 deg C; isothermally anneal for 1000 s; quench to 0 deg C in 1s c. Austenitize at 750 deg C; very rapid quench to 250...
Describe the heat treatment scheume that would provide the following property changes to 1080 steel. Refer...
Describe the heat treatment scheume that would provide the
following property changes to 1080 steel. Refer to TTT diagram
below.
a) 100% pearlite to a miture of 50% pearlite and 50%
martensite
b) Mixture of 75% pearlite and 25% martensite to 100%
martensite
800 1400 Eutectoid temperature 700 1200 600 1000 500 800 400 600 300 M(start) M(50%) M(90%) 50% 400 200 M + A 100 200 0 10-1 102 Time (s) 10 103 10 10
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...
7. A hypereutectoid steel contains 0.8% C. When slow cooled from austenite the following transformation products...
7. A hypereutectoid steel contains 0.8% C. When slow cooled from austenite the following transformation products result. a) ferrite and bainite b) ferrite and martensite c) ferrite and pearlite d) pearlite and cementite 8. Pearlite is a combination of a) cementite and iron carbide b) ferrite and cementite c) ferrite and bainite d) ferrite and martensite 9. The process of hardening steel consists of what two steps? a) melting the steel followed by quenching b) melting the steel followed by...
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...
Q2 What are the phases present at room temperature for steel of 0.76% C? Determine the...
Q2 What are the phases present at room temperature for steel of 0.76% C? Determine the composition & amounts of ferrite (a) and cementite (Fe3C) at room temperature in pearlite of eutectoid composition (0.76%C). Use attached Fe-Fe3C phase diagram or Fig. 9.24 in your text book. Composition (at% C) 10 25 1538°C TT - 1493°C 14008 1394°C 1147°C 4.30 y Austenite Temperature (°C) 1000 912°C y + Fezc 800 727°C 0.76 brol 600 0.022 a, Ferrite a + Fea 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...
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...
please make sure it is correct
What are the microstrucutures present in a 1040 steel at 500 °C ? 1100 2000 Austenite 1000 1850 900 Ferrite 1700 Aystenite and Ferite 1550 Temperature (°C) 300 Austenite and Cementit Temperature (°F) 1400 1250 Ferrite and Cementite Ferrite and Cementie 1100 WE 500 WF02 06 0.8 1 1.2 1.6 0.4 W 950 2 Wc Carbon (Wt percent) Cementite and pearlite OL Pearlite O II. Ferrite O III. o iv. Ferrite and pearlite
please make sure it is correct
What are the phase present in a 1040 steel at 500 °C ? Composition Cat C 10 15 20 25 1600 11538 C 2493C 1400 2500 1394-C y 1200 11470 2.14 4.30 7. Austenite 2000 Temperature ("C) Temperature (°F) 1000 912 C y+ Fezc 800 1500 727 C y 0.76 600 0.022 a, Ferrite a Fejc Cementite Fez 1000 400 5 6 6.70 Fe 3 4 Composition to Ferrite OL Cementite O II Ferrite...
Phase, TTT, and CCT diagrams provided
6.8. The heat treatments noted below are carried out in 1080 steel. In each case what phases will be present at the end of the treatment? a. Austenitize at 750 deg C; quench to 0 deg C in 1s. b. Austenitize at 750 deg C; rapid quench to 650 deg C; isothermally anneal for 1000 s; quench to 0 deg C in 1s c. Austenitize at 750 deg C; very rapid quench to 250...
Describe the heat treatment scheume that would provide the
following property changes to 1080 steel. Refer to TTT diagram
below.
a) 100% pearlite to a miture of 50% pearlite and 50%
martensite
b) Mixture of 75% pearlite and 25% martensite to 100%
martensite
800 1400 Eutectoid temperature 700 1200 600 1000 500 800 400 600 300 M(start) M(50%) M(90%) 50% 400 200 M + A 100 200 0 10-1 102 Time (s) 10 103 10 10
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...
7. A hypereutectoid steel contains 0.8% C. When slow cooled from austenite the following transformation products result. a) ferrite and bainite b) ferrite and martensite c) ferrite and pearlite d) pearlite and cementite 8. Pearlite is a combination of a) cementite and iron carbide b) ferrite and cementite c) ferrite and bainite d) ferrite and martensite 9. The process of hardening steel consists of what two steps? a) melting the steel followed by quenching b) melting the steel followed by...
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...
Q2 What are the phases present at room temperature for steel of 0.76% C? Determine the composition & amounts of ferrite (a) and cementite (Fe3C) at room temperature in pearlite of eutectoid composition (0.76%C). Use attached Fe-Fe3C phase diagram or Fig. 9.24 in your text book. Composition (at% C) 10 25 1538°C TT - 1493°C 14008 1394°C 1147°C 4.30 y Austenite Temperature (°C) 1000 912°C y + Fezc 800 727°C 0.76 brol 600 0.022 a, Ferrite a + Fea 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...
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...
Most questions answered within 3 hours.
-
1) In the mechanism for peptide bond formation, what acts as the
initial electrophile?
2) Consider...
asked 3 minutes ago -
Can you explain step by step.
Assume that we want to construct a confidence interval. Do...
asked 8 minutes ago -
A sledge loaded with bricks has a total mass of 18.9 kg and is
pulled at...
asked 6 minutes ago -
Suppose you have a set of coins of various denominations, with
values v1, v2, …, vn....
asked 7 minutes ago -
In the US, family structures can vary depending on
culture. For example, Hispanic-Americans and Asian-Americans are...
asked 34 minutes ago -
Physicians are interested in the mean diastolic blood pressure
for the population of female diabetics between...
asked 38 minutes ago -
A solution of sodium thiosulfate,
Na2S2O3, is 0.7707 M. 7.42 mL of
this solution reacts with...
asked 48 minutes ago -
imagine that for the unimolecular reaction A ⟺ B, the value of Δ
G° is -0.89...
asked 41 minutes ago -
What are the two types of important types of risks in
International Finance which are seldom...
asked 48 minutes ago -
Consider the reaction that occurs when a solution of formic acid
is added to a solution...
asked 56 minutes ago -
How would you illustrate the central dogma of
molecular genetics as it applies to eukaryotes?
asked 1 hour ago -
4. In a solicitation for the
production of survival rafts, the navy provided detailed design
specifications...
asked 55 minutes ago