The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained. Concept Introduction: The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

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Answer 1

Question

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

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Q2: Given a discrete sequence x(n) = [1,-1,2,4, 1, 3,-1,1] and its spectrum X(k): i. Show that: X(k) = G(k)+WH(k) k = 0,1,2,3,4,5,6,7 where G(k) = DFT[g(n)] and H(k) = DFT[h(n)], g(n) and h(n) are even and odd components of x(n) respectively. ii. Compute G(k) and H(k) using the method of computation of DFTS of two real sequences.

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Answer 2

Question

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

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Answer 3

Question

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

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Answer 4

Question

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

Answer 6

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

Answer 7

Chapter 10, Problem 10.1P

Interpretation Introduction

Interpretation:

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained.

Concept Introduction:

The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Answer 8

Expert Solution & Answer

Explanation of Solution

In a material, its grain boundary is considered invincible for the dislocations. These dislocations affect the stress buildup in the adjacent grain in the material and activate the dislocation sources and enable the deformation in the neighboring grain.

Changing the size of the grain by different means changes the number of dislocations which are there in that grain boundary.Thus, it increases the strength of the material.

At high temperatures, a small portion of this material with dislocated grain is subjected to solidification which generates crystal seeds and the rest of the material use this seed as template when they begin to solidify.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Ch. 10 - Prob. 10.1P Ch. 10 - Prob. 10.2P Ch. 10 - Prob. 10.3P Ch. 10 - Prob. 10.4P Ch. 10 - Prob. 10.5P Ch. 10 - Prob. 10.6P Ch. 10 - Prob. 10.7P Ch. 10 - Prob. 10.8P Ch. 10 - Prob. 10.9P Ch. 10 - Prob. 10.10P

The principle of grain-size strengthening is to be explained. Also, its mechanism to work at high temperatures is to be explained. Concept Introduction: The method of increasing the strength of a material by altering their average crystalline size is known as grain-size strengthening.

Explanation of Solution

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