INCA Crystal provides a number of methods for texture analysis, including fully automatic texture component extraction and tools for manual texture review.

Auto Texture

Identifying textures present in pole figures can be difficult and confusing, especially if more than one texture is present.   Auto Texture removes this problem by automatically extracting the textures present from the data collected by EBSD.

No specialist understanding of texture is required: Auto Texture automatically provides quantitative information about the textures present in a sample.

Find out more about Auto Texture and how it works here.

Texture components are identified as clusters of orientations lying within an angular tolerance of a particular texture.  For each component:

• The percentage of the texture present is given.

• The strength of this texture compared with a random texture (times random) is calculated.

• A color is allocated which is used to show where the texture originates in the crystal orientation map.

• Crystal orientation maps based only on that component can be formed.

Auto Texture can also be configured to use a recipe to only extract particular textures.

Interactive Texture

This feature allows textures to be extracted manually from a crystal orientation map.  Textures can be extracted by:

• Clicking on the map to identify a plane normal (hkl).

• Clicking on the inverse pole figure to identify a plane normal (hkl)

• Entering a plane normal (hkl)

In each case a map is shown of all points with sample normals within an angular tolerance of (hkl).   In addition, an inverse pole figure shows the measured orientations with the rolling direction within an angular tolerance of particular <uvw>.  From this individual  texture components can be extracted and added to a list from which subset crystal orientation maps can be produced.

Euler and Pole Figures

This feature displays the texture components found with Auto Texture or Interactive Texture as separate colors on either a pole figure or in Euler space.   The corresponding pixels in the crystal orientation map are colored equivalently to show where the texture originates in the sample.

Inverse Pole Figures

This feature displays the texture components found with Auto Texture or Interactive Texture on inverse pole figures.  For each (hkl) component, the rolling direction inverse pole figure shows only  orientations with the rolling direction in the (hkl) plane.   Circles show the angular tolerance used when finding orientations to include in a texture component.

Fibre / Direction Map

This feature allows a particular plane normal to be chosen either by clicking on the crystal orientation map or entering the value.  A map is displayed showing the deviation of the sample normal direction (or rolling direction or transverse direction) from the chosen plane normal.   A histogram of the deviation is also shown and the range displayed in the map and histogram can be chosen.

Crystal Mimic

The crystal mimic visualises the crystal orientation in a wire frame model at any point on the map.  Lines can be drawn in the map and the mimic updated as a point moves along the line.

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