Photo the structure of the analysis result of micro and the depletion of violence in and cracks in the area around 3 a pipe , obtained a conclusion as the following:
1 .The collision occurred not because of the defect of foreign matter , because there is no indication of deformation plastics and micro structure changes occurring in significant .
2 .The results of the violence shows no change the value of violence .
3 .Of the results of a photograph of SEM seen that happened due to pressure from a crack in a pipe .
4 .At the end of the results of a fissure EDX found no indication of the elements that can cause the occurrence of corrosion that causes crack.
Observation of the structure of micro and shem done by cutting pipe damaged as seen in images 3.22 and 3.23, besides that micro structure observations also done in the area in a pipe that is far from a damaged.
to be continue to Boiler tube research Part 5
very engineering post on boiler research.
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