Microstructure and Mechanical Properties of the Butt Joint in High Density Polyethylene Pipe

Figure 7

(a) Optical image of the W-PE10 weld seam after etching by chromium trioxide based etchant. SEM images of W-PE10 at different magnifications (b, c, d, e). Scale bar is 100 μm (b), 50 μm (c), 20 μm (d), and 10 μm (e).

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