In a binary metallurgical phase diagram, the lever rule is a tool for which of the...
In a binary metallurgical phase diagram, the lever rule is a tool for which of the following?
a) To balance the mass of the two components
b) Figure out the appropriate scale for the diagram
c) To allow the calculation of weight percentages of each phase
d) To tie the two ends of the envelope together.
A non-equilibrium microstructure is created under which of the following:
a) More solvent than the solute can contain
b) Fast cooling
c) Slow cooling
d) Discontinuous crystal structure
Homework Answers
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In a binary metallurgical phase diagram, the lever rule is a
tool for which of the...
PLEASE ANSWER BOTH. 1. We have discussed in detail numerous cases of microstrucure development from binary...
PLEASE ANSWER BOTH. 1. We have discussed in detail numerous cases of microstrucure development from binary phase diagrams. For all these diagrams make sure you understand: (a) The overall system composition (b) The composition of the individual phases in equilibrium (tie-line and x-axis label) (c) The relative amounts of the phases in equilibrium (lever rule) (d) The microstructure development on slow cooling 2. Draw a typical pressure-temperature phase diagram for a one-component system. (a) Identify the component’s melting point and...
Problem 3 A binary system of atoms A and B has a simple eutectic phase diagram...
Problem 3 A binary system of atoms A and B has a simple eutectic phase diagram (as shown below). The ternary solid solutions are a and R Let an A-rich sample of the composition indicated by the vertical line be solidified from the medt. It is found that its microstructure depends strongly on how rapidly it is cooled. Slow cooling leads to a polygranular structure of grains with small β grains dispersed throughout. Fast cooling leads to a dendritic structure...
1. The schematic shows a portion of a hypothetical binary phase diagram with single phases named...
1. The schematic shows a portion of a hypothetical binary phase diagram with single phases named L (left phase) and R (right phase). Using the tie line at the two-phase mixed region with a compositionL of Co (CLS Cos CR), please derive the lever rule (based on the discussion in class) for the mass fractions Wi and WR in terms of Ci, Co, and Ce for L and R phases, respectively. L+R
Question 4. (6 points) The figure below is a binary Sn-Pb binary phase diagram. Please answer...
Question 4. (6 points) The figure below is a binary Sn-Pb binary phase diagram. Please answer the following questions. Assume you cooled down the molten metal mixture to room temperature along line A and B for each composition with a very slow cooling rate. (a) How many phases at Point A and Point B (b) What is the composition, the Line A and B indicates in w196 (c) Please draw the expected microstructures into the three boxes below. Line A...
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...
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...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
What an Executive Summary Is An executive summary is a specific type of document that does...
What an Executive Summary Is
An executive summary is a specific type of document that does
two things: it summarizes a research article, and it offers
recommendations as to how information from the article can be
used.
Some long reports can contain an executive summary section, as
indicated in the Pearson handbook.
Write a 2 pahe Executive Summary
In business contexts, an executive summary is always written
for a specific purpose: to explain the information in the article
to a...
Problem 3 A binary system of atoms A and B has a simple eutectic phase diagram (as shown below). The ternary solid solutions are a and R Let an A-rich sample of the composition indicated by the vertical line be solidified from the medt. It is found that its microstructure depends strongly on how rapidly it is cooled. Slow cooling leads to a polygranular structure of grains with small β grains dispersed throughout. Fast cooling leads to a dendritic structure...
1. The schematic shows a portion of a hypothetical binary phase diagram with single phases named L (left phase) and R (right phase). Using the tie line at the two-phase mixed region with a compositionL of Co (CLS Cos CR), please derive the lever rule (based on the discussion in class) for the mass fractions Wi and WR in terms of Ci, Co, and Ce for L and R phases, respectively. L+R
Question 4. (6 points) The figure below is a binary Sn-Pb binary phase diagram. Please answer the following questions. Assume you cooled down the molten metal mixture to room temperature along line A and B for each composition with a very slow cooling rate. (a) How many phases at Point A and Point B (b) What is the composition, the Line A and B indicates in w196 (c) Please draw the expected microstructures into the three boxes below. Line A...
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...
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...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
What an Executive Summary Is
An executive summary is a specific type of document that does
two things: it summarizes a research article, and it offers
recommendations as to how information from the article can be
used.
Some long reports can contain an executive summary section, as
indicated in the Pearson handbook.
Write a 2 pahe Executive Summary
In business contexts, an executive summary is always written
for a specific purpose: to explain the information in the article
to a...
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