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Grain boundary plane distributions have been measured for Σ2 grain boundaries (boundaries that have a 90degree rotation about the [10-10] axis) in undeformed and plastically deformed WC–Co cemented carbides. By virtue of electron backscattered diffraction data coupled with the five parameter analysis method, the measurements show that while the misorientations of the Σ2 boundaries are 20% reduced...
The average interface area aspect ratios of carbide grains in WC–Co composites are measured from basal-to-prismatic area ratios determined by the five parameter analysis (FPA) method. Grain boundary plane distributions regardless of misorientations indicate that the (0001) basal and 101¯0 prismatic planes are the most common habit planes, and the interface area aspect ratio is determined by the ratio...
The effect of the densification mechanism on the Σ2 grain boundary plane distribution was investigated in WC–Co composites. Specimens were prepared separately by sintering in hot isostatic press (sinter-HIP) and spark plasma sintering (SPS). It was found that the Σ2 twist boundary is the most common boundary in both cases, but that the SPS material had more than three times the relative area of these...
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