Deformation and fracture mechanics of engineering materials
Updated to reflect recent developments in our understanding of deformation and fracture processes in structural materials. This completely revised reference includes new sections on isostress analysis, modulus of rupture, creep fracture micromechanicsms, and many more.
Results 1-3 of 25
2.176, will depend on the nature of the change in stacking sequence that occurs
between b2 and b3. Movement of these partial dislocations produces a change in
the stacking sequence from the FCC type — ABCABCABC — to include a local
perturbation involving the formation of a layer of HCP material — ABCBCABC.
Examples of stacking faults are shown in Fig. 2.17c. For an FCC crystal, the layer
of HCP material that is introduced will elevate the total energy of the system.
1 8 Photomicrographs revealing slip character, (a) Planar glide in low stacking
fault energy material; (b) wavy glide in high stacking fault energy material.
getically unfavorable atomic movements. Therefore, cross-slip of an extended
screw dislocation around obstacles is not permitted without thermally activated
processes and, as a consequence, the slip offsets seen on a polished surface will
be straight (Fig. 2.18a). Such is the case for a material of low stacking fault
energy and widely ...
Offsets due to slip are revealed as straight or wavy lines (depending on the
stacking fault energy of the material) with no change in contrast noted on either
side of the slip offset. Twin bands do exhibit a change in contrast, since the
associated lattice reorientation within the twin causes the incident light to be
reflected away from the objective lens of the microscope. After repolishing and
etching the sample, only twin band markings persist, since they were associated
with a reorientation ...
What people are saying - Write a review
LibraryThing ReviewUser Review - all4metals - LibraryThing
This is one of the best textbooks on physical metallurgy. My preference is for Dieter's book, but that is because it was the textbook for my physical metallurgy course in graduate school. Hertzberg's book is more modern. Read full review