7.8 - on the other side of the twin plane. Recall this was...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Alternative deformation process to slip – twinning If slip is restricted, another type of deformation mechanism may take place called twinning. It is not as common as slip. It can occur in bcc and hcp materials at low temperatures or high load rates. In twinning, shear forces produce atomic displacements such that after the displacements, atoms are located in mirror image positions
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: on the other side of the twin plane. Recall this was the twin (grain) boundary. The displacements of the atoms are proportional to the distance from the twin plane. Like slip, twinning occurs in specific crystallographic planes and in specific crystallographic directions. (e.g. in bcc the twinning system is {112}<111> )...
View Full Document

Ask a homework question - tutors are online