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Q3: Discuss the effect of all the cooling rates on the microstructure (phases present) and hardne...
Heat treatment: Water Quench Austenitizing temperature: Holding Time: Cooling Media: Phases Present: Microstouctructure Description: Hardness Value:
Heat treatment: Water Quench Austenitizing temperature: Holding Time: Cooling Media: Phases Present: Microstouctructure Description: Hardness Value:
A carbon steel plate containing 0.33 wt%C is heat treated to 1000°C so you will need to evaluate the following queries: A. With consideration of the equilibrated structures, estimate the phases f...
A carbon steel plate containing 0.33 wt%C is heat treated to 1000°C so you will need to evaluate the following queries: A. With consideration of the equilibrated structures, estimate the phases formed upon cooling to room temperature You determine later that the steel's composition is Fe-0.33C-0.53Mn-0.9Cr-0.18Mo (all in wt%), and luckily found the attached diagram. Give the processing of the steel needed to acquire a microstructure of austenite, 50% pearlite, 100% martensite, and 100% bainite Determine the mole fraction of...
Please answer all questions, thank you. Re-crystallization restores softness and ductility and decreases tensile strength. Question...
Please answer all questions, thank you.
Re-crystallization restores softness and ductility and decreases tensile strength. Question 7 Not yet answered Points out of 1.00 Select one: O True o False P Flag question Question 8 Hardness and strength in steel originate from the presence of Perlite (which contain iron and iron carbide) grains while ductility originates from ferrite grains. Not yet answered Points out of 1.00 Select one: O True O False Flag question Question 9 Not yet answered A...
I need help to write a nice introduction for experiment 6 please ( no hands write ) typing Thank you HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Ef...
I need help to write a nice introduction for experiment 6
please ( no hands write ) typing
Thank you
HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Effect of Cooling Rate One of the most convenient methods for controlling the properties of a given steel, i.e., a steel whose composition is already fixed, consists of austenizing the steel and ten cooling to room temperature at some predetermined rate. A variation of cooling rates...
In the Al-Cu phase diagram, determine what phases are present in the binary areas (white area). D...
In the Al-Cu phase diagram, determine what phases are present
in the binary areas (white area).
Determine all the phase transformations happened in the
following phase diagram.
For a 20 wt% Cu alloy at 500 oC, determine: The phases
present
The phase compositions
The fraction of each phase
Draw microstructure of this alloy at 700 oC, 560 oC and 300
oC.
We are interested to design an alloy with heat treatable
characteristics. Please suggest a composition range and explain
why?...
7. Different time-temperature cooling paths for a 1080 steel on an isothermal transformation diagram will produce...
7. Different time-temperature cooling paths for a 1080 steel on an isothermal transformation diagram will produce different microstructures. Use the IT diagram and other knowledge to determine the microstructure of the steel samples after each heat treatment. In each case assume that the specimen begins at 860ºC and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure. (10 points) (1) Water-quench Ai 700 (2) Water-quench; reheat 1 h at 200°C,...
4. You will experience a significant convection cooling effect when you extend your arm outside t...
4. You will experience a significant convection cooling effect when you extend your arm outside the window in a moving vehicle or into a flowing water stream. Assume that the surface of your hands is at a temperature of 32 'C. You dip one of your hands in a stream of cold water at 10 C, and another in a stream of cold air. The convective coefficient for the water stream is 45 Wm2K I, while for the air stream...
All interest and inflation rates are stated as annual rates. International Fisher effect 4. If the...
All interest and inflation rates are stated as annual rates. International Fisher effect 4. If the spot market exchange rate for the Haitian gourde is 783.961, the 1-year interest rate paid on Haitian government debt is 20.0%, and the 1-year interest rate on US government debt is 2.60%, what is the expected exchange rate for the gourde in one year? 5. If the spot market exchange rate for the Australian dollar is 0.7166, the 3-month interest rate on Australian government...
find composition of all phases present for 75%wt Ag and 25%wt Cu at 700 C can...
find composition of all phases present for 75%wt Ag
and 25%wt Cu at 700 C
can you answer parts a b and c please. need it asap in
40 mins
°C 110) Atomic percent silver 30 10 SO 10 20 60 70 F 80 90 T 1084.5 1200 10X0X0 1 961.93 1700 900 1. + 1600 1+B SOX a B 780 1400 7.9 71.9 91.21 7080 1200 60X) + B 1000 SCO 850 - 1 1 400 Cu 1 20...
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...
Heat treatment: Water Quench Austenitizing temperature: Holding Time: Cooling Media: Phases Present: Microstouctructure Description: Hardness Value:
A carbon steel plate containing 0.33 wt%C is heat treated to 1000°C so you will need to evaluate the following queries: A. With consideration of the equilibrated structures, estimate the phases formed upon cooling to room temperature You determine later that the steel's composition is Fe-0.33C-0.53Mn-0.9Cr-0.18Mo (all in wt%), and luckily found the attached diagram. Give the processing of the steel needed to acquire a microstructure of austenite, 50% pearlite, 100% martensite, and 100% bainite Determine the mole fraction of...
Please answer all questions, thank you.
Re-crystallization restores softness and ductility and decreases tensile strength. Question 7 Not yet answered Points out of 1.00 Select one: O True o False P Flag question Question 8 Hardness and strength in steel originate from the presence of Perlite (which contain iron and iron carbide) grains while ductility originates from ferrite grains. Not yet answered Points out of 1.00 Select one: O True O False Flag question Question 9 Not yet answered A...
I need help to write a nice introduction for experiment 6
please ( no hands write ) typing
Thank you
HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Effect of Cooling Rate One of the most convenient methods for controlling the properties of a given steel, i.e., a steel whose composition is already fixed, consists of austenizing the steel and ten cooling to room temperature at some predetermined rate. A variation of cooling rates...
In the Al-Cu phase diagram, determine what phases are present
in the binary areas (white area).
Determine all the phase transformations happened in the
following phase diagram.
For a 20 wt% Cu alloy at 500 oC, determine: The phases
present
The phase compositions
The fraction of each phase
Draw microstructure of this alloy at 700 oC, 560 oC and 300
oC.
We are interested to design an alloy with heat treatable
characteristics. Please suggest a composition range and explain
why?...
7. Different time-temperature cooling paths for a 1080 steel on an isothermal transformation diagram will produce different microstructures. Use the IT diagram and other knowledge to determine the microstructure of the steel samples after each heat treatment. In each case assume that the specimen begins at 860ºC and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure. (10 points) (1) Water-quench Ai 700 (2) Water-quench; reheat 1 h at 200°C,...
4. You will experience a significant convection cooling effect when you extend your arm outside the window in a moving vehicle or into a flowing water stream. Assume that the surface of your hands is at a temperature of 32 'C. You dip one of your hands in a stream of cold water at 10 C, and another in a stream of cold air. The convective coefficient for the water stream is 45 Wm2K I, while for the air stream...
find composition of all phases present for 75%wt Ag
and 25%wt Cu at 700 C
can you answer parts a b and c please. need it asap in
40 mins
°C 110) Atomic percent silver 30 10 SO 10 20 60 70 F 80 90 T 1084.5 1200 10X0X0 1 961.93 1700 900 1. + 1600 1+B SOX a B 780 1400 7.9 71.9 91.21 7080 1200 60X) + B 1000 SCO 850 - 1 1 400 Cu 1 20...
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...
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