The mechanical performance of API 5L grade B steel, after undergoing a thermochemical boriding process, was assessed. We quantified the boride layer microhardness over cross-section specimens, with aim characterizing resistance under different conditions. pipeline steel analyzed because changes in yield strength, ultimate tensile and ductility treatment boron. These oil gas pipelines must work ...

In this investigation, the effect of microstructural changes and phase equilibria on corrosion behavior hydrogen induced cracking (HIC) sensitivity an API X65 pipeline steel was studied. For purpose, heat treatment performed at 850 °C, 950 1050 °C 1150 to engineer desired microstructure steel. Then, evolution by optical microscopy, Field Emission Scanning Electron Microscopy (FE-SEM) equipped w...

The most economical way to move liquids and gaseous hydrocarbons is by using pipelines. According several international organizations oil companies, the use of fossil fuels will continue in following decades. For this reason, it important studying different corrosion mechanisms their origins. One that provoke small leaks, affecting pipeline hermeticity, pitting corrosion. It well-known non-meta...

Till now, different constitutive models have been applied to model the hot deformation flow curves of different materials. In this research, the hot deformation flow stress of API X65 pipeline steel was modeled using the power law equation with strain dependent constants. The results was compared with the results of the other previously examined constitutive equations including the Arrhenius eq...