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Automotive & Aerospace
Material Texture Analysis using EBSD

Here are three examples of aerospace & automotive metallic materials (1) titanium alloys, (2) magnesium alloys and (3) aluminium alloys. These materials require careful control of texture during processing, in order to obtain optimum properties for design and service use.

EBSD measures grain orientation. The grains can be either be randomly orientated or have a preferred or dominant orientation.  A dominant orientation is called a texture.

The texture in materials influences its formability to shapes of components. It is important to understand how the material texture changes during processing and how it affects the material properties. In another word, different processing techniques will generate different textures in the final material and by combining different processing methods it is possible to design materials with a desired texture.

EBSD measures and visualises texture variations through materials, offering a benefit over some techniques (e.g. XRD) which only provide an average from the analysed area.

Titanium alloys are essential structural materials to both civil and military aircraft and in space applications, as well as magnesium alloys as lightest structural materials in transportation vehicles. Texture plays an important role on numerous mechanical properties as required for these applications, i.e. strength, ductility, toughness.

Here show a typical deformation texture in titanium and magnesium alloys from a rolling process.

Aluminum is another highly important lightweight metals used in automotive applications to reduce vehicle weight. Crystallographic texture engineering through a combination of intelligent processing and alloying is a powerful and effective tool to obtain superior aluminum alloys with optimized strength and ductility resulting forming behavior for automotive applications, i.e. powertrain, chassis and body in white.

Here is a typical Goss texture in aluminum alloy forming during wrought process.

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