Chapter 7.1

Chapter 7.1 - Chapter Outline Dislocations and...

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1 MSE 2090: Introduction to Materials Science Chapter 7, Strengthening Dislocations and Strengthening Mechanisms What is happening in material during plastic deformation? Chapter Outline ± Dislocations and Plastic Deformation 9 Motion of dislocations in response to stress 9 Slip Systems 9 Plastic deformation in ± single crystals ± polycrystalline materials ± Strengthening mechanisms 9 Grain Size Reduction 9 Solid Solution Strengthening 9 Strain Hardening ± Recovery, Recrystallization, and Grain Growth Not tested: 7.7 Deformation by twinning, Direction and plane nomenclature in §7.4.
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2 MSE 2090: Introduction to Materials Science Chapter 7, Strengthening Why metals could be plastically deformed? Why the plastic deformation properties could be changed to a very large degree by forging without changing the chemical composition? Why plastic deformation occurs at stresses that are much smaller than the theoretical strength of perfect crystals? Introduction
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This note was uploaded on 02/14/2012 for the course MSE 2090 taught by Professor Leoindzhiglei during the Fall '10 term at UVA.

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Chapter 7.1 - Chapter Outline Dislocations and...

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