Analisa kimia air terproduksi fluida yang mengalir melalui jalur pipa API 5L Grade B memiliki kadar chloride (Cl - ) sangat tinggi. merupakan salah satu senyawa paling agresif terutama dalam keadaan terlokalisasi akan mengakibatkan terbentuknya pitting corrosion . Oleh karena itu sebagai upaya untuk mengetahui morfologi korosi secara atomic terjadi pada terpasang telah dilakukan pengujian kompo...

Initiation of corrosion on reinforcing bars occurs when a critical chloride concentration is achieved. A universal value for the chloride concentration that causes depassivation has not been agreed upon for carbon steels due to a variety of experimental factors. The chloride threshold depends on the rebar material, rebar surface condition, testing environment, method of detection, definition of...

In this paper, the semiconducting behavior of carbon steel in acid, base and salt solutions was studied by utilizing potential-capacitance and Mott-Schottky analysis. It was pointed out that the capacitance variation of space charge layer of carbon steel in different solution was different. The carbon steel showed p-type semiconducting behavior in 5% sulfuric acid and 5% sodium sulfate solution...

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 present work has as main aim to make a small introduction about the types of steels, specially the ones used in the construction industry. This material is appreciated in construction due to its many advantages as strengths, resistance, adaptability and flexibility in design, durability, recyclability,...; even thou its also has week points like a low resistance to fire, weak against corros...