To counteract possible corrosion, steel pipes are coated with a protective layer of zinc thickness 20 to 85 microns, depending on the requirements regulatory documentation. It is proven that hot-deposited can effectively protect surfaces for 120 years. However, in centralized hot water supply (CHWS) systems, period action decrease two three years, further damage and appearance fistulas. In orde...

Thermal barrier coatings (TBCs) are bilayer systems comprising a 7–8 wt% yttria partially stabilized zirconia (YSZ) top coat deposited over metallic bond coat. Suspension plasma spraying (SPS) is an advanced and attractive processing technique due to its capability yield variety of microstructures, including the desired columnar microstructure for enhanced strain tolerance durability. This work...

This paper studies the corrosion behavior of B10 copper-nickel alloy in marine environment. Accelerated degradation test under marine environmental conditions was designed and performed based on the accelerated testing principle and the corrosion degradation mechanism. With the prolongation of marine corrosion time, the thickness of Cu₂O film increased gradually. Its corrosion product was Cu₂(O...

Different problems may cause distortion of the rotor, and hence vibration, which is the most severe damage of the turbine rotors. Different techniques have been developed for the straightening of bent rotors. The method for straightening can be selected according to initial information from preliminary inspections and tests such as nondestructive tests, chemical analysis, run out tests and also...

Nimonic 75 and Inconel 600 alloys are the Nickel-based superalloys which used in manufacturing gas turbine components. In current research, a superalloy Ni-based sheet were used, joint by resistant spot welded (RSW) machine at currents of 2, 4, 6 kA, pressure 5 7 bar, times 0.6, 0.9 1.2. Non- destructive inception methods light scanning electron method (SEM) optic microscope (LOM) to evaluate j...