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View article: X-chromosomal STRs: Metapopulations and mutation rates
X-chromosomal STRs: Metapopulations and mutation rates Open
The analysis of STRs located on the X chromosome has been one of the strategies used to address complex kinship cases. Its usefulness is, however, limited by the low availability of population haplotype frequency data and lack of knowledge…
View article: Modeling 3D finite element analysis of a semi-elliptical crack on stress corrosion cracking of API X52 pipeline
Modeling 3D finite element analysis of a semi-elliptical crack on stress corrosion cracking of API X52 pipeline Open
In this study, an external semi-elliptical crack was modeled in a 3D API 5 L X52 pipeline with stress corrosion cracking (SCC). To make the crack, the finite element method (FEM) was used to obtain the failure pressure (Pf) and its mechani…
View article: Corrosion testing of X52 and X80 steels immersed in stimulated emulsions using a real petroleum sample
Corrosion testing of X52 and X80 steels immersed in stimulated emulsions using a real petroleum sample Open
The aim of this study is to evaluate the internal corrosion process on X52 and X80 steels/real petroleum interfaces containing condensed hydrocarbon plus oilfield-produced water, which were subjected to stimulated emulsions using 50/50 vol…
View article: Failure analysis of a bottom hole motor attached to a coiled tubing
Failure analysis of a bottom hole motor attached to a coiled tubing Open
During well operations in Mexico, a weight loss incident occurred, accompanied by the detachment of a section of the Bottom Hole Motor (BHM) connected to coiled wellbore tubing. To investigate the cause of the BHM rupture, a comprehensive …
View article: Electrochemical and Gravimetric Study on Corrosion Inhibition of Carbon Steels Exposed to Oilfield Produced Water
Electrochemical and Gravimetric Study on Corrosion Inhibition of Carbon Steels Exposed to Oilfield Produced Water Open
Two corrosion inhibitors (CI) were evaluated to study the protection behaviours of three carbon steels: X52, X60, and X70 in an oilfield produced water. The water was subjected to unstirred condition and a rotation speed of 600 rpm to simu…
View article: Kinetics evaluation of passive oxidation at high temperature of silicon nitride used in the fabrication of lightweight metal matrix composites
Kinetics evaluation of passive oxidation at high temperature of silicon nitride used in the fabrication of lightweight metal matrix composites Open
In the present work, the passive oxidation kinetics of silicon nitride α-Si 3 N 4 and (α+β)-Si 3 N 4 powders at different temperatures from 1000 to 1200 °C were evaluated. Oxidation of these powders was carried out to improve wettability a…
View article: Kinetics evaluation of passive oxidation at high temperature of silicon nitride used in the fabrication of lightweight metal matrix composites
Kinetics evaluation of passive oxidation at high temperature of silicon nitride used in the fabrication of lightweight metal matrix composites Open
In the present work, the passive oxidation kinetics of silicon nitride α-Si 3 N 4 and (α + β)-Si 3 N 4 powders at different temperatures from 1000 to 1200°C were evaluated. Oxidation of these powders was carried out to improve wettability …
View article: Electrochemical Noise Analysis of the X70 Pipeline Steel under Stress Conditions Using Symmetrical and Asymmetrical Electrode Systems
Electrochemical Noise Analysis of the X70 Pipeline Steel under Stress Conditions Using Symmetrical and Asymmetrical Electrode Systems Open
In this work, electrochemical monitoring of stress corrosion cracking (SCC) behavior of a X70 steel in acidic synthetic soil solution during the slow strain rate test (SSRT) was performed by electrochemical noise (EN) using the conventiona…
View article: Susceptibility of Dissimilar IN600 Welded Joints to Stress Corrosion Cracking Using Slow Strain Rate Test in Sodium Electrolytes
Susceptibility of Dissimilar IN600 Welded Joints to Stress Corrosion Cracking Using Slow Strain Rate Test in Sodium Electrolytes Open
The stress corrosion cracking (SCC) behavior of aged plates of Inconel 600 welded to Inconel 600 plates in the as-received condition was studied using the slow strain rate test (SSRT) in two sodium containing electrolytes at 25 and 80 °C. …
View article: Study of SCC of X70 Steel Immersed in Simulated Soil Solution at Different pH by EIS
Study of SCC of X70 Steel Immersed in Simulated Soil Solution at Different pH by EIS Open
An electrochemical study of stress corrosion cracking (SCC) of API X70 steel in a simulated soil solution at different pH values (3, 8 and 10) was carried out. The stress conditions were implemented by slow strain rate stress test (SSRT) a…
View article: Performance Assessment of Magnesium Anodes Manufactured by Sintering Process
Performance Assessment of Magnesium Anodes Manufactured by Sintering Process Open
This work shows the performance of cathodic protection systems formed by an API (American Petroleum Institute) X52 steel exposed to seawater and coupled with galvanic anodes of Mg, Mg-1Cr, and Mg-1Nb fabricate by sintering technique at a t…
View article: Effect of the Physicochemical Properties of Soils on Generalized and Localized Corrosion Rate of API X52 and X60 Pipeline Steels
Effect of the Physicochemical Properties of Soils on Generalized and Localized Corrosion Rate of API X52 and X60 Pipeline Steels Open
This work analyzed physicochemical properties of different types of soils on the generalized and localized corrosion rate in two steels (X52 and X60) most used in pipeline transportation of hydrocarbons. The physicochemical properties such…
View article: Corrosion Study of Pipeline Steel under Stress at Different Cathodic Potentials by EIS
Corrosion Study of Pipeline Steel under Stress at Different Cathodic Potentials by EIS Open
The effect of different cathodic potentials applied to the X70 pipeline steel immersed in acidified and aerated synthetic soil solution under stress using a slow strain rate test (SSRT) and electrochemical impedance spectroscopy (EIS) was …
View article: Stress-corrosion-cracking assessment of X52 pipeline steel exposed to mexican soils
Stress-corrosion-cracking assessment of X52 pipeline steel exposed to mexican soils Open
This work analyzed the physicochemical effect of the soils typical of the Campeche State of Mexico on the X52 pipeline steel.The susceptibility to external stress corrosion cracking (SCC) of the X52 pipeline steel in two types of soil cont…
View article: Electrochemical Noise for Detection of Stress Corrosion Cracking of Low Carbon Steel Exposed to Synthetic Soil Solution
Electrochemical Noise for Detection of Stress Corrosion Cracking of Low Carbon Steel Exposed to Synthetic Soil Solution Open
In the last years, electrochemical noise (EN) has demonstrate that is capable of detect the initiation of cracks during the slow strain rate tests (SSRT). In this research, EN has been used as a tool to detect stress corrosion cracking (SC…
View article: Metallurgical Characterization of API X65 Steel Joint Welded by MIG Welding Process with Axial Magnetic Field
Metallurgical Characterization of API X65 Steel Joint Welded by MIG Welding Process with Axial Magnetic Field Open
In this work, API X-65 pipeline steel non-conventionally heat treated, to enhance its mechanical resistance, was welded using the Metal Inert Gas (MIG) process with and without the application of low intensity axial magnetic fields (6 mT).…