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. 49 (2000), No. 12

  • Cavitation·Erosion

    pp. 719-725

    Bookmark

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

    Log in / Sign Up
    A short historical review was given of the important pieces of research on cavitation, which was followed by the describing in orderly sequence how a method to predict quantitatively the extent of damage caused to ductile metallic materials by cavitation attack was established. The useful effect of the methodology on cavitation research was also given.
  • Review on Biological Corrosion at Cooling Water System

    pp. 726-730

    Bookmark

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

    Log in / Sign Up
    Biological activity has a major influence on corrosion, scaling and fouling in cooling water system. Recently, this area is getting more attention within the industry. This article will review the characteristics on the typical microbio organizms, the possible mechanisms of biological corrosion, treatment program for biological control and environmental solution.
  • Corrosion Control for Inner Surface of Water Pipe Line by Cathodic Protection (Product Name “KREFLOS”)

    pp. 731-733

    Bookmark

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

    Log in / Sign Up
  • Effect of W on Corrosion Behavior of Low Alloy Steel in Wet/dry Environment

    pp. 734-738

    Bookmark

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

    Log in / Sign Up
    The chemical state of the tungsten (W) in the rust of low alloy steel was analyzed by EPMA and XPS, and the electrochemical behavior of rust was investigated by alternating current (AC) impedance method after wet/dry cyclic corrosion test with chlorides. The 1.0mass%W-bearing steel showed higher corrosion resistance than carbon steel in the corrosion test. EPMA and XPS showed that the tungsten existed as WO4 compounds in the rust of W-bearing steel. A Fe-W binary potential-pH diagram was made to investigate the thermodynamic stability of Fe-W oxides, and this showed that WO4 was stable in the rust, which confirmed the physical analysis. An AC impedance measurement was made to obtain the corrosion reaction resistance (Rt) of the rust, and it was found that Rt of W-bearing steel was much larger than that of carbon steel. The corrosion of the W-bearing steel is suppressed by (1) the insoluble FeWO4 formed near the base metal suppressing the anodic reaction, (2) the WO42- ions in the rust changing the selective permeability to prevent the transport of Cl- ions.
  • Evaluation of Repassivation Behavior of Pits on Stainless Steel with Potential Response Method

    pp. 739-745

    Bookmark

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

    Log in / Sign Up
    A new method has been proposed for evaluation of repassivation behavior of pits formed on stainless steel. The conventional cyclic polarization technique is less effective for detailed examination of repassivation because of difficulty of controlling the extent of growth of pits in spite of the fact that repassivation potential varies with the depth of pits. According to the new method, a specimen is exposed in the iron (III) chloride solution for predetermined duration to cause pits with desired maximum depth and then subjected to potential control.
    After the designed control of potential, the specimen was released for open circuit condition to follow the potential. The potential response well reflected if pits repassivated during the potential-controlled period. This method is effective for the detailed study of repassivation behavior of pits since it enables determination of repassivation condition as a function of potential, time and pit depth. This technique was applied to study the effect of agitation of a solution or ultrasonic irradiation on the repassivation behavior of pits. The result showed that repassivation kinetic of pits was not influenced by such physical stimulation.

Article Access Ranking

26 Mar. (Last 30 Days)

  1. Dependence of Carbon Concentration and Alloying Elements on the Stability of Iron Carbides ISIJ International Advance Publication
  2. Comprehensive Optimization Control Technology of Rolling Energy and Oil Consumption in Double Cold Rolling ISIJ International Advance Publication
  3. Experiments on Removal of Hydrophilic Fine Particles in Bubbly Flow ISIJ International Vol.59(2019), No.2
  4. Effects of Impurities and Processing Conditions in Al–1%Mn Alloys on the Formation of Thermally Stabilized Substructures MATERIALS TRANSACTIONS Vol.59(2018), No.11
  5. Temperature Field Distribution of a Dissected Blast Furnace ISIJ International Advance Publication
  6. Coating Film Profiles Generated by Fluctuating Location of the Wiping Pressure and Shear Stress ISIJ International Vol.59(2019), No.2
  7. Effect of EAF Slag Temperature and Composition on its Electrical Conductivity ISIJ International Vol.59(2019), No.2
  8. Fundamentals of Silico-Ferrite of Calcium and Aluminium (SFCA) Iron Ore Sinter Bonding Phase Formation: Effects of Basicity and Magnesium on Crystallisation during Cooling ISIJ International Vol.59(2019), No.2
  9. Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works ISIJ International Vol.56(2016), No.10
  10. Numerical Simulation of Multiphase Flow and Mixing Behavior in an Industrial Single Snorkel Refining Furnace (SSRF): The Effect of Gas Injection Position and Snorkel Diameter ISIJ International Advance Publication

Search Phrase Ranking

26 Mar. (Last 30 Days)

  1. blast furnace
  2. blast furnace productivity
  3. blast furnace permeability
  4. galvanizing
  5. tuyere abrasion
  6. tuyere erosion
  7. tuyere failure
  8. lme
  9. wear on tuyere
  10. 鉄と鋼