Toughness and the transition from ductile to brittle behavior are long-standing concerns for applications of ferritic steel such as line-pipe. Three algorithms have been developed fit a hyperbolic tangent curve any Charpy V-notch dataset estimate uncertainty (1) 85% shear appearance area temperature (2) upper shelf absorbed energy. To data (I) first algorithm relied on iterative estimation four...

Radiatively-induced neutrino mass matrix is investigated within the framework of an SU(5) SUSY GUT model. The model has matter fields of three families 5L(+)i +5L(+)i in addition to the ordinary matter fields 5L(−)i +10L(+)i and Higgs fields H(+)+H(0), where (+, 0,−) denote the transformation properties (ω, ω, ω) (ω = +1) under a discrete symmetry Z3. R-parity violating terms are given by 5L(+)...

The oil and gas production has grown steadily, the care with its transportation grid needs to be maintained expanded. pipeline used in transport of by-product requires materials high mechanical strength, toughness, fatigue resistance. chemical composition distribution, amount, morphology final microconstituents steel are paramount importance once it will directly influence properties. fracture ...

1-Phenyl-1H-tetrazol (PHT) has been studied as an efficient corrosion inhibitor for X65 steel in sulfuric acid environment. Atomic force microscope test results show that PHT can effectively inhibit the of 0.5 M solution. Quantum chemical calculations and molecular dynamics simulations a small energy gap value large dipole moment value, which is excellent inhibitor. In addition, adsorption on F...

On the composition base of commercial X65 grade pipeline steels, a Cu modified steel was designed to show improved resistance microbially induced corrosion (MIC). The mechanical properties Cu-added and its behavior in soil solution inoculated with sulfate-reducing bacteria (SRB) were investigated this work. results demonstrated that exhibits good combination strength toughness. ions released fr...