... separate zones exist: the immersed, the splash, and the atmospheric. Corrosion rates for the Gulf of Mexico may be 25 mils per year (.001 inch penetration = 1 mil) for the immersed zone, up to 55 mils per year in the splash zone, and 5 to 10 mils per year in the atmospheric zone. While surveys show...

... formed solids, and it has a pH of 6. The results of the corrosion rate test were carried out without an inhibitor at 100°C for seven days and gave a yield of 77.340 mils per year, while other commercial additives gave a yield of 2,525.120 mils per year. The new eco-friendly organic acid system has a good...

... a corrosion rate of less than 5 mils per year, while rates of over 100 mils per year have been reported under the most severe low-NOx conditions. Due to the myriad of boiler designs, firing conditions, and creative solutions, there has been a progression of material selections for weld overlay that would...

... between 0.5 to 450 mils per year (mpy). The five-element probes simultaneously performed Linear Polarization Resistance (LPR) and Electrochemical Noise (EN) measurements. Instantaneous and time averaged corrosion rates were calculated and recorded along with various other statistically relevant parameters...

... excellent protection. Fipewall corrosion rates were reduced from 10 to 15 mils per year to 1 mil per year or less. The hand-applied liners also reduced the pipewall corrosion rate, but not to the same degree as the cast liners. Further the risk of spalling of the hand-applied liner...

... systems on marine pipelines and to summarize the procedures available to accomplish the surveys. Corrosion rates of unprotected steel in sea water are unacceptably large. Corrosion rates in excess of 10 mils per year are common. Pitting rates in excess of 25 mils per year have been observed in sea water...

... experienced heavy corrosion and ultimate failure within a 7-month period, with estimated corrosion rate at 161 mils per year (MPY), or 4.1 mm per year (MMPY). Upon removal by the inspection team, heavy white deposit buildup (a suspected microbial biofilm) was observed directly associated with the corrosion...

... studies -in terms of the rate 'of metai 19ss"in'mil~peryear (.001 inch penetration = 1 mil) at various locations along the length of the pile. By far. the ,greatest rate of damage (16 mils per year) occurs just above mean high tide level. As is also clean from Figure 1 the rate of loss in permanently...

... contact tower of a vacuum deaeration process of the inlet water is being reduced from 14 further reduces the concentration of oxygen in mils per year (mpy) to 1.6 mpy. The plant has equilibrium vapors and thereby the dissolved operated essentially maintenance free at a oxygen in the treated waters...

..., perhaps leaving an insoluble residue, and the metal would become thinner, thus justifying the description of corrosion rates in units of ?mils per year of metal loss.? However, it is not uncommon for the environment to not be homogeneous. Either the metal originally had or had later suffered defects...

... high tide (16 mils per year).l The rate of metal loss is far less in perma- nently submerged areas and in the atmosphere. The corxosion rate of the High Island risers was in excess of that expected from the test results described above. This was observed some 4 feet above normal sea level in the splash...

... on these alloys has exceeded 12 millimeters per year (500 mils per year) in forced oxidation WFGD service. A corrosion rate of this magnitude can lead to perforation of the absorber walls and floor in less than one year of service. The time to initiate localized attack can be as little as two to three months...

... additive was selected to address this obstacle. The final candidate was able to effectively lower the corrosivity to negligible levels of far less than 1 mils per year (mpy) at 180°F but could also be used in an ultra-high temperature application. It is a stable standalone formulation that could...

... pipes of the side cut carbon steel piping that draws medium vacuum gasoil (MVGO) from the vacuum distillation tower (VDT). The average corrosion rate estimated from through-wall pits is 4.7 mm/year (187 mils per year). Comparable corrosion morphologies were observed in carbon steel pump cases and VDT...

... of construction most affected by localized corrosion attack is UNS S32205 – a duplex stainless steel. The rate of attack has exceeded 500 mils per year (mpy) in forced oxidation WFGD service. A corrosion rate of this magnitude will lead to perforation of the absorber walls and floor in less than one year...

... in mils per year (mpy) and the amount of cathodic protection current (direct current), expressed in milli per sq. ft. of submerged steel area, required to prevent corrosion. In Gulf of Mexico water the value is 5, i.e., the corrosion rate on a continuously submerged steel structure is approximately 5 mpy...

... Abstract Corrosion and biofouling control is an important consideration for offshore oil structures. Corrosion rates for steel exposed to seawater immersion and brine air can easily exceed 10 mils per year if left unprotected in the splash zone, while barnacles which attach in shallow tidal...

... by an equation of the form Corrosion coupons were expo~ed with short term corrosion rates of 25 to 35 mils per year being obtained. Since normally short term corrosion rates tend to be high, these rates were thought to be greater than would be encounted for long- term exposure. This thinking was influenced...

... sulfide attributable to SRB activity would not be significant. Corrosion rates, as monitored by weight loss coupons and linear polarization probes, appeared acceptable and averaged somewhere less than 2.0 mils per year. One problem that did exist within the injection system was an erratic and unexplained...

... (in mils per year or mpy) was quantified using a rotating cylinder electrode (RCE) method in a white liquor solution with hard particles simulating field conditions for the digesters or evaporators. Corrosion products remaining on the specimen surface were examined using an optical microscope...