The corrosion resistance and anomalous hydrogen evolution of extruded cast powder metallurgical (PM) Mg-1Zn alloy were investigated. Potentiodynamic polarization revealed that the PM actively corroded at OCP due to enhanced cathodic kinetics, whereas remained spontaneously passive. HE measurements confirmed exhibited lower rates than alloy. Rp values for remarkably higher with over 90% charge r...

Several factors may contribute to the structural failure of cast and ductile iron water mains, the most important of which is considered to be corrosion. The ANSI/AWWA C105/A21.5–99 10-point scoring (10-P) method is commonly used to predict corrosivity potential of a given soil sample using certain soil properties. The 10-P and other scoring methods use binary logic to classify the soil either ...

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The corrosion of reinforcing steel in concrete has been reported as one the main durability problems reinforced (RC) structures exposed to chloride, carbonation or both. To investigate structural performances RC subjected corrosive exposure, rebars embedded is accelerated induce a targeted degree reinforcement short time duration. Several earlier researchers have attempted develop setup bars st...

1. The topography of the organic components (conchiolin) has been investigated on positive, postshadow-cast, formvar, and carbon replicas of mother-of-pearl from shells of a Cephalopod, of two Gastropods, and of six Pelecypods. All these shells are characterized by a true nacreous inner shell layer. 2. The material included normal shell surfaces, fragments of cleavage obtained by fracture, and ...