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. 57 (2008), No. 7

  • A Opinion Associated with Hardware Making and Software Making in Japan

    pp. 299-300

    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.57.299

  • Hydrogen Embrittlement Associated with Phase Transformation (Appendix : Assessment of the Susceptibility to Hydrogen-related Failure)

    pp. 301-317

    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.57.301

    The features and mechanisms of hydrogen embrittlement of metals that undergo hydride formation and martensitic transformation during service are reviewed. Metastable austenitic stainless steels, Nb and V as well as Ti and its alloys are the metals examined. The embrittlement of austenitic stainless steels is susceptible to the stability of austenite, and hydrogen promotes the martensitic transformation forming hydride as a precursor. However, martensite per se is not always the origin of the embrittlement, but.lattice defects associated with dislocation dynamics in the crack front is noted as a factor. In Nb and V, stress-induced hydride formation successively taking place at the crack front supplies a crack path with a reduced resistance for growth. In Ti, the primary role of hydrides is not always the case. In superelastic and shape memory Ni-Ti alloys, the embrittlement appears prominent in the martensitic transformation, and some dynamic process invoking lattice defects is suggested to play a role. In an appendix, the assessment of the susceptibility in terms of the critical hydrogen concentration is critically discussed, and some mechanical response to hydrogen is proposed as new criteria for the susceptibility of materials to hydrogen embrittlement.
  • Multiple Uses High Corrosion Resistant Stainless Steel, NSSC®270

    pp. 322-326

    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.57.322

    NSSC270 stainless steel is recognized as one of stainless steels that can be used in very severe corrosion environments and it is standardized as SUS312L in JIS (Japan Industrial standard). In this report, corrosion resistance and application examples of super stainless steel, NSSC270(20%Cr-18%Ni-6%Mo-0.8%Cu-0.2%N) with high corrosion resistance and good weldability are mainly described in food industries, desulfurization plants, inner sheets of stack and marine environments. NSSC270 can be manufactured as variety of shapes such as plates, sheets, tubes, bolts, nuts and flanges et al. and delivered within short time.
  • Quantitative Analysis of Copper Sulfides by Voltammetry Using a Strongly Alkaline Solution

    pp. 327-333

    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.57.327

    A new voltammetric method using a strongly alkaline electrolyte (6 M KOH+1 M LiOH) as the supporting electrolyte was applied for simultaneous determination of copper oxides and sulfides. It was found that the reduction peak of Cu2S was well separated from those of copper oxides and appeared at a somewhat higher potential than that of Cu2O. Unlike in the case of the reduction of CuO, CuS was reduced in a stepwise manner. The amounts of Cu2S formed on Cu plates were determined by the LSV method and found to agree well with the values determined by ICP-OES. In the voltammetric measurement of a copper plate in 6 M KOH+1 M LiOH containing S2−, the existence of Cu2S could be confirmed by the emergence of its redox peak pair. The proposed voltammetric method enables the quantitative estimation of a Cu2S film of a few nm thickness formed on Cu. In addition, Cu9S5 could be detected by its reduction peak appearing at a potential slightly higher than Cu2S.

Article Access Ranking

19 Apr. (Last 30 Days)

  1. Three-dimensional Investigations of Non-metallic Inclusions in Stainless Steels before and after Machining ISIJ International Advance Publication
  2. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  3. Influence of Ore Assimilation and Pore Formation during Sintering on Reduction Behavior of Sintered Ores Tetsu-to-Hagané Vol.107(2021), No.3
  4. Steam Reforming of Methane on Sponge Iron: Influence of Gas Composition on Reaction Rate ISIJ International Vol.61(2020), No.1
  5. Preface to the Special Issue on “Toward Suppression of Hydrogen Absorption and Hydrogen Embrittlement for Steels” ISIJ International Vol.61(2021), No.4
  6. Dissolution Behavior of Mg and Ca from Dolomite Refractory into Al-killed Molten Steel ISIJ International Advance Publication
  7. Effect of Rare Earth Ce on the Morphology and Distribution of Al2O3 Inclusions in High Strength IF Steel Containing Phosphorus during Continuous Casting and Rolling Process ISIJ International Vol.61(2021), No.3
  8. Improvement in Reduction Behavior of Sintered Ores in a Blast Furnace through Injection of Reformed Coke Oven Gas Tetsu-to-Hagané Vol.107(2021), No.4
  9. Rapid Method to Measure Hydrogen Diffusion Coefficient in Metal Using a Multi-sine Wave Signal ISIJ International Vol.61(2021), No.4
  10. Method for Evaluating Hydrogen Embrittlement of High-Strength Steel Sheets Considering Press Formation and Hydrogen Existence State in Steel ISIJ International Vol.61(2021), No.4

Search Phrase Ranking

19 Apr. (Last 30 Days)

  1. blast furnace
  2. coke oven gas injection
  3. blast furnace permeability
  4. blast furnace productivity
  5. slag
  6. ultrasonic inclusion
  7. activity coefficient of ti in liquid iron
  8. continuous casting of electrical steel
  9. deoxygen in liquid iron
  10. electrical steel and continuous casting