material science How are dislocations involved in plastic deformation?
material science
How are dislocations involved in plastic deformation?
Homework Answers
Dislocatons are a type of linear defects in localized regions in crystals wherein, the atoms are out of position. On application of stress, excess shear can be transferred from one side of the crystal to the other by the motions of these dislocations. This is known as slip which results in plastic deformation.
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material science
How are dislocations involved in plastic deformation?
QUESTION 14 Which of the following is false for the plastic deformation on a microscopic scale?...
QUESTION 14 Which of the following is false for the plastic deformation on a microscopic scale? It corresponds to the net movement of large numbers of atoms in response to an applied stress. During this process, interatomic bonds are ruptured and reformed. In crystalline solids, it often involves the motion of dislocations. Stacking faults are another process for the plastic deformation.
Please answer all true/false questions 10. Materials which undergo plastic deformation prior to 11. A true...
Please answer all true/false questions
10. Materials which undergo plastic deformation prior to 11. A true elastic behavior has an instantaneous deformation to load. 12. Grain structure of metals is affected by plastic strain, such as, making wire. T 13. The mechanical behavior of all materials is affected by temperature 14. Elastic deformation changes the arrangement of atoms in materials. 15. 16. T or F failure are said to be "brittle." T or F F T orF T orF or...
For a brass alloy, the stress at which plastic deformation begins is 345 MP a, and...
For a brass alloy, the stress at which plastic deformation begins is 345 MP a, and the modulus of elasticity is 103 GP a. (a) What is the maximum load that can be applied to a specimen with a crosssectional area of 90 mm2 without plastic deformation? (b) If the original specimen length is 46 mm, what is the maximum length to which it can be stretched without causing plastic deformation?
For a bronze alloy, the stress at which plastic deformation begins is 278 MPa and the...
For a bronze alloy, the stress at which plastic deformation begins is 278 MPa and the modulus of elasticity is 111 GPa. (a) What is the maximum load that may be applied to a specimen having a cross-sectional area of 349 mm2 without plastic deformation? (b) If the original specimen length is 119 mm, what is the maximum length to which it may be stretched without causing plastic deformation?
For a brass alloy, the stress at which plastic deformation begins is 345 MPa and the...
For a brass alloy, the stress at which plastic deformation begins is 345 MPa and the modulus of elasticity is 103 GPa. What is the maximum load that may be applied to a specimen with a cross-sectional area of 130 mm without plastic deformation?
which one the answer ? Folding occurs by a combination of plastic deformation and brittle fracture....
which one the answer ?
Folding occurs by a combination of plastic deformation and brittle fracture. Here, plastic deformation refers to: Select one: a. Temporary Damage b. Semi-Solid State c. Bending in Rock d. Permanent Damage
1. Why does one state that plastic deformation occurs at a constant volume?
1. Why does one state that plastic deformation occurs at a constant volume?
By understanding collagen, elastin, proteoglycans, and the idea of plastic deformation, what is c...
by understanding collagen, elastin, proteoglycans, and the idea of plastic deformation, what is causing this appearance of fluid on the surface of mice skin after pulling it out?
An ensemble of edge dislocations present in a bulk specimen of mass 'M has a total length of 'L.'...
An ensemble of edge dislocations present in a bulk specimen of mass 'M has a total length of 'L.' The physical density of the material is 'r'. All the dislocations are present in parallel slip planes and they have Burgers vector of b. However, it is noted that only 30% of the dislocations are sessile in nature and the rest are mobile. a) What would be the shear strain rate if the mobile (5) b) To create a shear strain...
The modulus of a material is (a) proportional to the yield strength (b) the stiffness at the onset of plastic flow (c)...
The modulus of a material is (a) proportional to the yield strength (b) the stiffness at the onset of plastic flow (c) the stiffness at the onset of necking (d) none of the above Consider the following components: 1. a bicycle frame 2. a window frame a thigh bone 4. a feather 3 In which of these components is specific stiffness (E/p) important? (а) 1, 2 & 3. (b) 2, 3 & 4 (с) 1, 3 & 4. (d) 1,...
QUESTION 14 Which of the following is false for the plastic deformation on a microscopic scale? It corresponds to the net movement of large numbers of atoms in response to an applied stress. During this process, interatomic bonds are ruptured and reformed. In crystalline solids, it often involves the motion of dislocations. Stacking faults are another process for the plastic deformation.
Please answer all true/false questions
10. Materials which undergo plastic deformation prior to 11. A true elastic behavior has an instantaneous deformation to load. 12. Grain structure of metals is affected by plastic strain, such as, making wire. T 13. The mechanical behavior of all materials is affected by temperature 14. Elastic deformation changes the arrangement of atoms in materials. 15. 16. T or F failure are said to be "brittle." T or F F T orF T orF or...
For a brass alloy, the stress at which plastic deformation begins is 345 MPa and the modulus of elasticity is 103 GPa. What is the maximum load that may be applied to a specimen with a cross-sectional area of 130 mm without plastic deformation?
which one the answer ?
Folding occurs by a combination of plastic deformation and brittle fracture. Here, plastic deformation refers to: Select one: a. Temporary Damage b. Semi-Solid State c. Bending in Rock d. Permanent Damage
1. Why does one state that plastic deformation occurs at a constant volume?
An ensemble of edge dislocations present in a bulk specimen of mass 'M has a total length of 'L.' The physical density of the material is 'r'. All the dislocations are present in parallel slip planes and they have Burgers vector of b. However, it is noted that only 30% of the dislocations are sessile in nature and the rest are mobile. a) What would be the shear strain rate if the mobile (5) b) To create a shear strain...
The modulus of a material is (a) proportional to the yield strength (b) the stiffness at the onset of plastic flow (c) the stiffness at the onset of necking (d) none of the above Consider the following components: 1. a bicycle frame 2. a window frame a thigh bone 4. a feather 3 In which of these components is specific stiffness (E/p) important? (а) 1, 2 & 3. (b) 2, 3 & 4 (с) 1, 3 & 4. (d) 1,...
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