Zairyo-to-Kankyo
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 1881-9664
PRINT ISSN: 0917-0480

Zairyo-to-Kankyo Vol. 66 (2017), No. 2

  • Getting over the Existing Image

    pp. 47-48

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3323/jcorr.66.47

  • Development of Artificial Rainfall Equipment for Studying the Effect of Rain on the Corrosion Behaviors

    pp. 58-61

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3323/jcorr.66.58

    Atmospheric corrosion is an electrochemical process which can only proceed in the presence of an electrolyte film. Rain is one of the main factors in initiating the time of wetness and transporting the chemical substance from the atmosphere to metal surface that guide to accelerate the corrosion attack. In this case study, an artificial rainfall equipment was developed with the aim of defining the behaviors of atmospheric corrosion which is affected by rain and chemical species. The Atmospheric Corrosion Monitoring (ACM) sensor which consists of a Fe-Ag couple was used to measure the corrosivity of the rainfall solution by finding the relation between the Corrosion Rate (CR) and the sensor output. The controllable precipitation rate and its distribution facilitate in investigating the effect of rainfall on the corrosion behaviors. The relation between the sensors output and CR enable to predict the corrosivity of the atmosphere. Thus, the developed artificial rainfall equipment is an essential and reliable tool for studying the corrosion behaviors under the effect of rain.
  • Analysis of Water Chemistry Change Behavior of the Spent Fuel Pool Due to the Injection of Sea Water and/or Fresh Water to the Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company

    pp. 62-70

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3323/jcorr.66.62

    Concentration of SO42- and HCO3 which affect to corrosion for carbon steels were estimated by analysis using pH, Cl concentration and electrical conductivity κ, in the spent fuel pools (SFP) of Fukushima Daiichi Nuclear Power Station (1F) in which sea water and/or fresh water were injected. Electrical conductivity κ in the SFP of 1F Unit 1 in which fresh water was injected, were presumed accurately by analysis using observed Cl concentration, concentration of SO42- and HCO3 which were estimated. The pH measurements exceeded the estimate in 1F Units 2 and 3 where sea water was injected. Each of dissolution reaction of iron, dissociation of H4N2, and the production of ammonia by the decomposition of H4N2 has been evaluated as not the cause of the high pH by itself. It was estimated that the calcium ions from the concrete debris had been continuously supplied to water in SFP of the unit 3 during purification treatment period. It was evaluated that self-passivation conditions of carbon steel were achieved in the water chemistry after the purification process completed for the Fukushima Daiichi Nuclear Power Station of Units 2 to 4. In addition, it was evaluated that self-passivation of carbon steel was achieved in the environment of unit 1.

Article Access Ranking

16 Jan. (Last 30 Days)

  1. A Review of the Chemistry, Structure and Formation Conditions of Silico-Ferrite of Calcium and Aluminum (‘SFCA’) Phases ISIJ International Vol.58(2018), No.12
  2. Improving Blast Furnace Raceway Blockage Detection. Part 1: Classification of Blockage Events and Processing Framework ISIJ International Advance Publication
  3. Phase Transformation Behavior of Oxide Scale on Plain Carbon Steel Containing 0.4 wt.% Cr during Continuous Cooling ISIJ International Vol.58(2018), No.12
  4. Hydrogen Embrittlement Susceptibility Evaluation of Tempered Martensitic Steels Showing Different Fracture Surface Morphologies Tetsu-to-Hagané Vol.105(2019), No.1
  5. Improvement of Sinter Productivity by Control of Magnetite Ore Segregation in Sintering Bed ISIJ International Vol.58(2018), No.12
  6. Gasification and Migration of Phosphorus from High-phosphorus Iron Ore during Carbothermal Reduction ISIJ International Vol.58(2018), No.12
  7. Effect of TiO2 and MnO on Viscosity of Blast Furnace Slag and Thermodynamic Analysis ISIJ International Vol.58(2018), No.12
  8. Effect of Coke Size on Reducing Agent Ratio (RAR) in Blast Furnace ISIJ International Vol.58(2018), No.12
  9. High Temperature Thermal Diffusivity Measurement for FeO Scale by Electrical-Optical Hybrid Pulse-Heating Method ISIJ International Vol.58(2018), No.12
  10. Improving Blast Furnace Raceway Blockage Detection. Part 3: Visual Detection Based on Tuyere Camera Images ISIJ International Advance Publication

Search Phrase Ranking

16 Jan. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. 鉄と鋼
  5. continous annealing
  6. laser welder
  7. titanium
  8. a
  9. activity feo
  10. argon steel