XRD of Deformed Steel Sample: Electropolishing Needed?

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Why there is need to electropolishing of deformed steel sample for doing XRD ?
 
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Why there is need to electropolishing of deformed steel sample for doing XRD ?
 
It depends on the specific XRD method used. In general, you will want to eliminate any oxides from the surface. Moreover, many in situ XRD machines require fairly flat samples.
 

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