Homework Answers
22)Plastic deformation is due to the motion of a large number of dislocations So, Strengthening consists in hindering dislocation motion. Grain boundaries impede the movement of dislocations and thereby have a strengthening effect.
Polycrystalline metals are not homogeneous, so they have microstructural defects, i.e., dislocations in comparison to single crystalline metals(homogeneous). Hence Single crystalline metals have more strength than the polycrystalline metals.
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22. Compare between strengthening in single crystalline and polycrystalline metals 23. State the mechanisms in which...
1. State the difference between: Single crystal and polycrystalline materials Deformability of BC...
1. State the difference between: Single crystal and polycrystalline materials Deformability of BCC and FCC metals. Strength and UTS of metals.
1. State the difference between: Single crystal and polycrystalline materials Deformability of BCC and FCC metals. Strength and UTS of metals.
1. State the difference between I and polycrystalline materials. Deformability of BCC and FCC met...
1. State the difference between I and polycrystalline materials. Deformability of BCC and FCC metals. Strength and UTS of metals. 2. Determine the slip systems in BCC and FCC materials. Show the calculations that support your determinations. 3. Find the indices that represent the planes in the following cubic unit cell and show the X-Ray diffract-ability of the these planes in FCC and BCC structures: 4. A tensile specimen with a 12 mm initial diameter and 50 mm gauge length...
Which of the following is not a strengthening method for crystalline metals? A. Hot-working B. Cold-working....
Which of the following is not a strengthening method for crystalline metals? A. Hot-working B. Cold-working. C. Grain refinement D. Interstitial alloy addition E. None of the above. These are all strengthening methods. A unidirecional composite of 35% by volume Eglans for in apocytsee Table 1)is subjected to a stress of 200 MPa parsial to the fore dinction. The strain in the comples Table 1 pdf 71 kn A 0070 0.000 C 728 OD. 0007 O E 0.004 Table 1...
Q-1. You are testing a circular beam of two metals, 1045 steel and 2014-T6 aluminum, in...
Q-1. You are testing a circular beam of two metals, 1045 steel and 2014-T6 aluminum, in a rotating-cantilever beam fatigue test. If you need to choose one of these metals so that you can essentially design a part made of that metal, and subject the part to a repetitive stress-amplitude without ever failing due to fatigue, which one would you choose. (See the attached figure) Q-2. What is the fatigue strength for the 1045 steel alloy, if you expect to...
QUESTION 1 A semi-crystalline nylon with a degree of crystallinity of 25% has a density of 1.5 g/cm^3. Nylon has a crystalline density of 1.8 g/cm^3. What is its amorphous density in grams per centi...
QUESTION 1 A semi-crystalline nylon with a degree of crystallinity of 25% has a density of 1.5 g/cm^3. Nylon has a crystalline density of 1.8 g/cm^3. What is its amorphous density in grams per centimeters cubed? 1 points QUESTION 2 Which defect is NOT common between metals and polymers? tie molecules vacancies screw dislocations interstitial defects 0.5 points QUESTION 3 Which one is not a characteristic of a plastic polymer? a. Low stress but very large strains b. Tensile strength...
22. Compare the characteristics of smooth muscle and skeletal muscle. How are they different? What is...
22. Compare the characteristics of smooth muscle and skeletal muscle. How are they different? What is similar? 23. Differentiate between the basics of the two types of smooth muscle tissue (single-unit and multi unit). Which ones have a pacemaker? Which ones don't? Where can you find each? 24. What is the modiolus? What are the structures that insert into the modiolus? 25. What is the structure that supplies motor innervation to the muscles of facial expression? 25. What is the...
23. Consider these three sequences contained within single beta strands. Which is most likely to have ionic interaction...
23. Consider these three sequences contained within single beta strands. Which is most likely to have ionic interactions between side chains at physiological pH? Explain your choice. Sequence 1: Ala-Glu- Leu- Arg Sequence 2: Ala - Glu - Arg-Leu Sequence 3: Leu - Ala - Glu- Arg 24. The equilibrium between the native state (N) and the unfolded state (U) of a protein can be represented by the chemical equation N U, with a AG value that represents the equilibrium....
Suppose the local state university wants to determine whether there is a relationship between a student’s...
Suppose the local state university wants to determine whether there is a relationship between a student’s gender and a student’s major in college. The registrar was asked to randomly select 55 students and record their gender and major. The majors were grouped into categories of Natural Science (NS), Social Sciences (SS), and Humanities (H). Answer the following questions based on the results in the table below. NS SS H Total Men 11 9 3 23 Women 9 13 10 ...
1) state which SINGLE question on The Alcohol Dependence Scale best captures the concept of "addiction."?...
1) state which SINGLE question on The Alcohol Dependence Scale
best captures the concept of "addiction."?
2) if there were only 1 question you could use to reliably
distinguish between someone who is addicted and someone who is not,
what would it be?
Can u answer question 1 and 2 based on the questions in the
picture (pick one and explain why that specific question captures
the concept of "addiction ? one paragraph for each of them. explain
base on...
Question Completion Status: QUESTION 22 Which among the following statements is correct about the relationship between...
Question Completion Status: QUESTION 22 Which among the following statements is correct about the relationship between inflation and interest rates? There is no relationship between inflation and interest rates The interest rate is determined by the rate of inflation In order to fully understand inflation, we need to know how to correct for the effects of interest rates In order to fully understand interest rates, we need to know how to correct for the effects of inflation QUESTION 23 Which...
1. State the difference between: Single crystal and polycrystalline materials Deformability of BCC and FCC metals. Strength and UTS of metals.
1. State the difference between: Single crystal and polycrystalline materials Deformability of BCC and FCC metals. Strength and UTS of metals.
1. State the difference between I and polycrystalline materials. Deformability of BCC and FCC metals. Strength and UTS of metals. 2. Determine the slip systems in BCC and FCC materials. Show the calculations that support your determinations. 3. Find the indices that represent the planes in the following cubic unit cell and show the X-Ray diffract-ability of the these planes in FCC and BCC structures: 4. A tensile specimen with a 12 mm initial diameter and 50 mm gauge length...
Which of the following is not a strengthening method for crystalline metals? A. Hot-working B. Cold-working. C. Grain refinement D. Interstitial alloy addition E. None of the above. These are all strengthening methods. A unidirecional composite of 35% by volume Eglans for in apocytsee Table 1)is subjected to a stress of 200 MPa parsial to the fore dinction. The strain in the comples Table 1 pdf 71 kn A 0070 0.000 C 728 OD. 0007 O E 0.004 Table 1...
Q-1. You are testing a circular beam of two metals, 1045 steel and 2014-T6 aluminum, in a rotating-cantilever beam fatigue test. If you need to choose one of these metals so that you can essentially design a part made of that metal, and subject the part to a repetitive stress-amplitude without ever failing due to fatigue, which one would you choose. (See the attached figure) Q-2. What is the fatigue strength for the 1045 steel alloy, if you expect to...
22. Compare the characteristics of smooth muscle and skeletal muscle. How are they different? What is similar? 23. Differentiate between the basics of the two types of smooth muscle tissue (single-unit and multi unit). Which ones have a pacemaker? Which ones don't? Where can you find each? 24. What is the modiolus? What are the structures that insert into the modiolus? 25. What is the structure that supplies motor innervation to the muscles of facial expression? 25. What is the...
23. Consider these three sequences contained within single beta strands. Which is most likely to have ionic interactions between side chains at physiological pH? Explain your choice. Sequence 1: Ala-Glu- Leu- Arg Sequence 2: Ala - Glu - Arg-Leu Sequence 3: Leu - Ala - Glu- Arg 24. The equilibrium between the native state (N) and the unfolded state (U) of a protein can be represented by the chemical equation N U, with a AG value that represents the equilibrium....
1) state which SINGLE question on The Alcohol Dependence Scale
best captures the concept of "addiction."?
2) if there were only 1 question you could use to reliably
distinguish between someone who is addicted and someone who is not,
what would it be?
Can u answer question 1 and 2 based on the questions in the
picture (pick one and explain why that specific question captures
the concept of "addiction ? one paragraph for each of them. explain
base on...
Question Completion Status: QUESTION 22 Which among the following statements is correct about the relationship between inflation and interest rates? There is no relationship between inflation and interest rates The interest rate is determined by the rate of inflation In order to fully understand inflation, we need to know how to correct for the effects of interest rates In order to fully understand interest rates, we need to know how to correct for the effects of inflation QUESTION 23 Which...
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