I. Deformation features of pol l o Plastic deformation can take place in various ways slip, twinning, g.b. sliding, migration, diffusion ② Multislip+ rotation
◆ Ⅱ.Deformation features of polycrystal ◆ Plastic deformation can take place in various ways. slip, twinning, g.b. sliding, migration, diffusion ② Multislip + rotation
lll. Internal stress (residual stress) 1 Definition 2 Formation macroscopIc 3. Classification mIcroscopIc Bauschinger effect Previous extension will increase the strength in subsequent extension while decrease the strength in subsequent compression
◆ Ⅲ.Internal stress (residual stress) 1. Definition: 2. Formation: 3. Classification: Baushinger effect: Previous extension will increase the strength in subsequent extension while decrease the strength in subsequent compression. macroscopic microscopic