Causes for deposition of defective galvanized coating (lumpy deposition of coating during hot dip galvanizing) of carbon-steel wire have been investigated. It is established that the lumpy deposition is caused due to segregation of silicon on the surface of steel wire. Due to this change in composition of the steel at surface, the regions get modified and lie in Sandelin hyper reactive zone. Th...

Within the Fives Group, Fives Stein, Fives DMS and Fives Bronx design and supply a wide range of production, transformation and treatment lines for carbon, stainless and silicon steel. From pickling and annealing lines to the continuous galvanizing line, from rolling mills to tube and pipe mills, our teams will offer you their expertise and the best available technologies to achieve the highest...

In this paper, the behavior of corrosion in phosphated galvanized steel without defect and with surface is evaluated electrolyte solutions sodium chloride at a concentration 3% sulfate 0.1 M objective simulating marine environment presence chlorides, sulfates for industrial environment. experimental methodology, samples are used, each were exposed sulfate. The was electrochemical techniques Lin...

Tallgrass prairie ecosystems play a vital role in the carbon cycle; their restoration may be an important component of mitigating future climate change. To quantify the biosphere-to-atmosphere exchange of greenhouse gases, enclosure based chamber systems are frequently used because they are simple and inexpensive to construct, and can be easily replicated in a variety of ecosystems. We tested f...

Impedance response of zinc and galvanized steel samples exposed in wet-dry cyclic condition using 0.05 M NaCl solution has been analyzed in order to evaluate their corrosion behavior. The wet-dry cyclic test was performed by exposing sample to alternate conditions of 1 h immersion in 0.05 M NaCl solution and 7 h drying at 298 K with relative humidity (RH) of 60% for 10 days consisting of 30 cyc...

Two different cases regarding the zinc coating at the lap joint faying surface are selected for studying the influence of zinc vapor on the keyhole dynamics of the weld pool and the final welding quality. One case has the zinc coating fully removed at the faying surface; while the other case retains the zinc coating on the faying surface. It is found that removal of the zinc coating at the fayi...

This work deals with atmospheric corrosion to assess the degrading effects of air pollutants on ferrous and non-ferrous metals and alloys, which are mostly used as engineering materials. An exposure study was conducted in the Tuticorin port area located on the east coast of South India, in the Gulf of Mannar with Sri Lanka to the southeast. Common engineering materials, namely mild steel, galva...