84.9 Comparison Between Slip and Twinning I. S imi l ar ity Both slip and twinning are shear process under shear stress T ◆‖|. Differences 1. Orientation 2. Atom movement 3.y,△ a)Structure: Twinning is easy 4. Conditions: b) Temperature de d c) Strain rate (or§4.9 Comparison Between Slip and Twinning ◆ Ⅰ.Similarity: Both slip and twinning are shear process under shear stress . ◆ Ⅱ.Differences: 1. Orientation 2. Atom movement 3. 4. Conditions:   , l a) Structure: Twinning is easy b) Temperature: c) Strain rate ) d d (or d d t t  