To accurately classify and identify the different corrosion patterns on inner walls of water-supply pipes with morphologies complex variable backgrounds, an improved VGG16 convolutional neural network classification model is proposed. Firstly, S.E attention mechanism added to traditional VGG model, which can be used distinguish importance each channel feature map re-weight through globally calc...

Peculiarities of corrosion-mechanical fracture 09G2S pipe steel samples in the conditions cathodic protection were investigated. It was established that depending on level protective potential, stress-corrosion cracking a ferrite-pearlite class can occur by different mechanisms. The range potentials determined, at which anodic dissolution and hydrogen embrittlement simultaneously during steel, ...

Composite materials are widely recognized as a resource for repairing damaged pipelines. The fibers in conventional composite repair systems typically incorporate E-glass and carbon materials. To provide greater levels of reinforcement a system was developed that incorporates steel half shells and an E-glass composite repair system. In comparison with other competing composite technologies, the...

The driving force that causes metals to corrode is a natural consequence of their temporary existence in metallic form. Application of cathodic protection (CP) as measures to stop corrosion has a very long history. The first application of impressed current system for protection of underground structures took place in England and in the United States, about 1910-1912. The first criterion for CP...

In the oil, gas and geothermal drilling industry, use of a drill pipe is vital for its as an addition to length depth. Another function channel high pressure mud (drilling fluid / fluid) bit. During operation, several problems were encountered, such broken, bent, leaking or wash-out pipes. This very detrimental company because time replace new will take long time, disrupt program which result i...