507 29
figure to an image. In order to do this we must first assign a
color to each direction in the inverse pole figure stereo-
graphic triangle. A common way this is done is shown in
. Fig. 29.19. Inverse pole figure maps are then plotted by
mapping the orientation of each pixel onto the color key
shown in. Fig. 29.19.. Figure 29.20 is an inverse pole figure
map produced from the same data that is shown as pole
figures (. Fig. 29.17) or inverse pole figures (. Fig. 29.18).
When inverse pole figure maps are displayed it is important
to always include the reference direction, otherwise it is dif-
ficult or impossible for the viewer to make sense of the infor-
mation shown.. Figure 29.20 is an inverse pole figure map
with respect to the surface normal direction or the Z direc-
tion. Thus, the map is mostly blue, indicating that most of the
Inverse Pole Figure
(Folded)
[Au_20kv_5kx_280pa_r:
Iron fcc (m3m)
Complete data set
39083 data points
Equal Area projection
Upper hermisphere
Inverse Pole Figure
(Folded)
[Au_20kv_5kx_280pa_r:
Iron fcc (m3m)
Complete data set
39083 data points
Equal Area projection
Upper hermisphere
Inverse Pole Figure
(Folded)
[Au_20kv_5kx_280pa_r:
Iron fcc (m3m)
Complete data set
39083 data points
Equal Area projection
Upper hermisphere
001
101 101
111
001
101
111
z0
111
x0 001 x0
. Fig. 29.18 Inverse pole figures that show the same data as the pole
figures in. Fig. 29.9. The three directions X, Y, and Z (parallel to the
samples surface normal) are shown. The high density of poles plotted
near the <111 > apex of the stereographic triangle indicates that many
of the measured pixels had <111 > parallel to the sample surface normal
direction. The X and Y pole figures show where the other <111 > poles
plot. The smaller density of poles near the <110 > apex of the triangle
indicates that there are a few pixels with a <110 > direction parallel to
the sample surface normal
29.2 · Electron Backscatter Diffraction in the Scanning Electron Microscope