In this study, the feasibility of using a one dimensional 16-element flexible ultrasonic transducer (FUT) array for nondestructive testing at 150 °C is demonstrated. The FUT arrays were made by a sol-gel sprayed piezoelectric film technology; a PZT composite film was sprayed on a titanium foil of 75 µm thickness. Since the FUT array is flexible, it was attached to a steel pipe with an outer di...

This work deals with a previously proposed piezo-diagnostic methodology based on principal component analysis for structural damage detection. Previous works have demonstrated the effectiveness of baseline models to distinguish between structural damage and undamaged conditions, however, its robustness and reproducibility depends on a proper estimation of the principal components from undamaged...

Conveying hard and the abrasive materials has been one of the major operational problems in industrial situations. The erosion of plant components, especially the pipe bends by abrasive solid particles of a fluid stream makes installation of pneumatic conveying systems a very costly affair for industry. Most users have either lived with the problem or have employed expensive bend materials to r...

Abstract With the continuous requirement for an improvement in tap water quality, decline of quality after is transported through supply pipelines needs to be solved urgently. Pipe scale forms when anti-corrosive lining pipeline damaged, and it has a significant influence on chromaticity turbidity indicators quality. Therefore, reasons damage joint, tee, elbow, other parts that are prone damagi...

Abstract The L-type steel column studied here is a special-shaped composed of square pipe and two T-shaped steel, which are connected by weld. Because the columns have better properties than ordinary columns, it may be wildly used in residential structures. Therefore, quite valuable to study bearing capacity stability new columns. Three specimens tested, behaviour deformation, distribution disp...

Article history: Available online xxxx 0022-3115/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.jnucmat.2008.02.078 * Corresponding author. E-mail address: [email protected] (H. Ko On-beam tests were carried out at the Los Alamos Neutron Science Center–Weapons Neutron Research (LANSCE–WNR) facility in June 2005 to investigate pressure wave mitigation in mercury targets for the M...

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, ...

The presented work deals with the investigation of mechanical tribological properties on Inconel 625 superalloy, which is welded a 16Mo3 steel pipe. wall thickness basic pipe was 7 mm, while average layer 3.5 mm. coating made by cold metal transfer (CMT) method. A supercritical bending 180° performed material in this way cold. evaluated were hardness, wear resistance, coefficient friction (COF)...

Abstract There is a research gap on the transformation of ofloxacin (OFL) in water supply systems under action ClO2. The degradation kinetics OFL different ClO2 concentrations, pH and pipe materials, formation intermediates, as well toxicity were first studied. results showed that PE deionized increased with increase concentration, reaction followed second-order kinetic model. removal rate was ...