Zairyo-to-Kankyo
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ONLINE ISSN: 1881-9664
PRINT ISSN: 0917-0480

Zairyo-to-Kankyo Vol. 59 (2010), No. 10

  • Future and Future of Materials Science

    pp. 359-359

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    DOI:10.3323/jcorr.59.359

  • New Role of a Low-Voltage, Ultra-High Resolution FE-SEM for Corrosion Studies (2)

    pp. 360-365

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    DOI:10.3323/jcorr.59.360

    A brief review is given, with selected examples, of a novel use of advanced scanning electron microscopy for corrosion studies. Examples included are (a) water-drop corrosion of iron, (b) corrosion of copper in NaCl solution, and (c) deformation of matrix around the tip of cracks developed in high-temperature resistant steels. Through the use of test specimens with “well-defined” or “nearly perfectly-defined” surfaces, prepared by mechanical polishing followed by final treatment by rf-GD sputtering, subtle surface evolutions associated with the initial stages of corrosion of iron and copper have been revealed at the clarity never seen before. Specifically for water-drop corrosion of high purity iron, where MnO and MnS inclusions of dimensions of up to several microns are present, often forming complex inclusions, it has been demonstrated for the first time that nano-cavities, which are precursors for pitting, are always formed not by dissolution of MnS inclusions, as previously suggested for pitting of stainless steels, but by the dissolution of MnO inclusions.
  • Corrosion of Steel Wire Strands for Telecommunication exposed in Miyake Island

    pp. 377-378

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    DOI:10.3323/jcorr.59.377

  • Formation of Model Scratch on Pre-painted Coated Steel by Laser Machining and Its Wet/Dry Corrosion Behavior

    pp. 379-381

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    DOI:10.3323/jcorr.59.379

  • Nakajima Diagram & Water Quality Change

    pp. 382-384

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    DOI:10.3323/jcorr.59.382

  • Reuse of Outdated Potentiostat

    pp. 385-386

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    DOI:10.3323/jcorr.59.385

  • Effect of Adhesion Salts and Meteorological Condition on Current Outputs of ACM Sensor Based on Field Observation

    pp. 387-389

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    DOI:10.3323/jcorr.59.387

  • Effect of Sea Salt and Relative Humidity on Corrosion Rate of Carbon Steel in Humidity Test

    pp. 390-392

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    DOI:10.3323/jcorr.59.390

  • Evaluating Corrosivity in Environments Installed with Electronic Equipment

    pp. 393-398

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    DOI:10.3323/jcorr.59.393

    A new method to evaluate the corrosivity of the atmospheric environment with environmental data, temperature, relative humidity and corrosion weight, in published papers was developed in order to improve the data base related to the indoor corrosion of electronic equipment. The validity of this method was examined by the environmental data at five sites. Furthermore, this method can be used to examine the effect of air conditions and thus control the damage caused by corrosion.

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