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Line defects, Planar defect, DIslocation & Strengthening mechanisms,…

- - - - Compression
      - Tension
      - Shear
  - - - Parallel to applied stress
  - - - dislocation의 유무
  - - - large numbers of dislocations
        
        Plastic deformation
      - Perpendicular
- - - - Shear stress
- - - - 높은 에너지
        
        이동 많이 함
      - broken bond
      - void
      - vacancy
      - strained bond
      - interstitial-type atoms
  - - - 20nm 이하면 급격히 감소
- - - - no plastic deformation
  - - - more yield strengths
  - - - same sign
        
        repulsive force
      - opposite sign
        
        attractive force, annihilate
    - - same sign
        
        attractive force
      - opposite sign
        
        repulsive force
  - - - dislocation이 일어나는 면
        
        slip direction
        
        dislocation 방향
        
        highest linear densities
      - 조건
        
        Highest planar density
        
        Large interplanar spacing
- - - - above recystallization temperature
      - less force
      - no residual stress