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Erosion-corrosion is responsible for severe damage and high maintenance costs in many industrial operations involving slurry handling such as oil sands and mineral processing. While tungsten carbide reinforced Ni-based alloy overlays are frequently used for applications requiring extremely high wear resistance, they tend to suffer from extensive carbide degradation during the weld cladding process...
During the transportation of oil and gas, pipes are exposed to flowing corrosive environment which causes erosion-corrosion. The high degradation rates attributed to this mechanism can create increased challenges to project economy and operation where material integrity, accurate erosion-corrosion rate prediction and long term performance are key concerns. Although the problem caused by the interaction...
Solid particle erosion of steel is a function of abrasive particle properties, target material, erodent velocity, abrasive feed rate, impact angle and the environment. Steel microstructure, which directly influences its hardness and ductility, plays an important role in determining the erosion rate. In this study, the effect of microstructure on the erosion of AISI 1018 (pearlite+ferrite) and AISI...
The cost of erosion attack to the global oil and gas industry has drawn significant attention amongst researchers in recent years. Erosion is a complex phenomenon and in order to recommend ways to mitigate its effect it is essential to have a full understanding of the tribo-mechanisms involved. In the present study erosion tests were conducted on API X42 steel using aluminum oxide as erodent. The...
Erosion–corrosion is common in oil and gas processing plants and pipelines where there is interaction between solid particles, corrosive fluid and target material. In this study, the synergism between erosion and corrosion of API pipeline steel has been assessed under liquid–solid impingement conditions in 2g/l NaCl solution purged with CO 2 as the corrosive media and aluminum oxide as the...
Porosity is a common feature of cast and sintered aluminum alloys and strongly influences their properties and applications. Al–Si alloys are widely used in a variety of automotive components due to their excellent strength to weight ratio. Porosity adversely affects the mechanical properties and wear resistance of these components. In the present investigation, dry sliding wear behavior was investigated...
The tribological behaviour of ductile iron heat-treated by two different procedures viz. quenching and tempering, and austempering to an identical matrix hardness of 445 KHN is compared. Wear tests were carried out using a pin-on-disc type apparatus under dry sliding conditions at a linear speed of 1.18 m s -1 . Applied load and sliding distance in the range of 7.5-30 N and 2x10 4...
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