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Zairyo-to-Kankyo
Vol. 62 (2013), No. 8

Zairyo-to-Kankyo Vol. 62 (2013), No. 8

ONLINE ISSN:	1881-9664
PRINT ISSN:	0917-0480
Publisher:	Japan Society of Corrosion Engineering

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Zairyo-to-Kankyo Vol. 62 (2013), No. 8

Ettorts of Colleges of Technology

Yasuhiko ltoi

pp. 271-

DOI:

10.3323/jcorr.62.271

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Article Title

Ettorts of Colleges of Technology

Bibtex

Ris

Influences of Mixing and Porosity Ratios of Porous Sintered Al-Zn Plate and Material Property of Fiber Sheet on Anticorrosive Effects of Sacrificial Anode for Carbon Steel in Atmospheric Environment

Shigenobu Kainuma, Kazuhiro Utsunomiya, Shuji Ishihara, Daisuke Uchida, Akira Kaneko, Takao Yamauchi

pp. 278-288

DOI:

10.3323/jcorr.62.278

Abstract

In authorsʼ previous research, an anticorrosive method with sacrificial anode for steel members in atmospheric environment was proposed. In this method, porous sintered Al-Zn plate was applied as sacrificial anode materials. In addition to this, chemical fiber sheet was applied as the material which has functions of continual water absorption and retention needed for sacrificial anode reaction.
The object of this research is to clarify the influences of mixing and porosity ratios of the sintered plate and property of the fiber sheet on the anticorrosive effects and to investigate applicability of the anticorrosive method in various atmospheric environments. Electro-chemical tests using the sintered plate and material property tests using the fiber sheet were carried out. Moreover, atmospheric exposure tests were also conducted on the model specimens composed of the steel plate, the fiber sheet and the sintered plate. The results showed that the anticorrosive method seems to be applicable in atmospheric environments by controlling the anticorrosive effect and consumption of anode materials by putting various kinds of the sintered plate and the fiber sheet together.

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Influences of Mixing and Porosity Ratios of Porous Sintered Al-Zn Plate and Material Property of Fiber Sheet on Anticorrosive Effects of Sacrificial Anode for Carbon Steel in Atmospheric Environment

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Ris

Corrosion Behavior of Prestressing Steel in a Solution of 20％ Ammonium Thiocyanate

Mikiyuki Ichiba, Yuya Niidome, Shunsuke Nakamura, Junʼichi Sakai

pp. 289-293

DOI:

10.3323/jcorr.62.289

Abstract

High-strength steels or PC steel products are used for pre-stressed concrete structures. Testing of PC steel products in terms of hydrogen embrittlement is specified in the FIP Report, and the test method adopted in ISO 15630 is well known. This test is called the FIP test, whereby a constant load is applied to PC steel in a 20％, 50℃ ammonium thiocyanate solution. An investigation was carried out on the corrosion behavior of 1,400 MPa class PC steel products in a FIP testing environment. Under this testing environment, a cathodic reaction associated with oxygen consumption and hydrogen generation was identified from the initial stage of dipping, and corrosive products mainly consisting of ferric sulfide were formed on the surface of a specimen detected in the test pieces. From changes in the amount of gas associated with the reaction, it is understood that, together with this corrosion reaction, there also occurred a reaction involving 1 mol of hydrogen generation or 0.5 mol of oxygen consumption for 1 mol dissolution of iron. It is also assumed that the reaction involving hydrogen generation was a cathodic reaction associated with the decomposition of SCN^－.

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Article Title

Corrosion Behavior of Prestressing Steel in a Solution of 20％ Ammonium Thiocyanate

Bibtex

Ris

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Zairyo-to-Kankyo Vol. 62 (2013), No. 8

Keyword Ranking

blast furnace

ferrocoke

high-strength steel alloys

isij international

slag/metal reactions in steelmaking

tramp elements

trip steel martensitic transformation

bend

continuous casting slab

crystallization

Zairyo-to-Kankyo Vol. 62 (2013), No. 8

Ettorts of Colleges of Technology

Share it with SNS

Influences of Mixing and Porosity Ratios of Porous Sintered Al-Zn Plate and Material Property of Fiber Sheet on Anticorrosive Effects of Sacrificial Anode for Carbon Steel in Atmospheric Environment

Share it with SNS

Corrosion Behavior of Prestressing Steel in a Solution of 20％ Ammonium Thiocyanate

Share it with SNS

Article Access Ranking

Wettability of CaS Against Molten Iron at 1873 K

Perspectives on the Promising Pathways to Zero Carbon Emissions in the Steel Industry toward 2050

Analysis of Peritectic Solidification of Ag–Sn Alloys by Unidirectional Solidification Experiment

Thermodynamic Calculation of Grain Boundary Composition in Ferritic Steels and Its Application for Controlling the Hall–Petch Coefficient

Effects of interface anisotropy on the solidification morphology of zinc alloys and development of data assimilation for their estimation

Hydrogen-induced vacancy formation process in austenitic stainless steel 304

Microstructural Analysis of Reduced Multicomponent Calcium Ferrite Using STEM-EDS and 3DAP

PREFACE

Bend Failure Mechanism of Zinc Coated Advanced High Strength Steel

Chemical State Evolution of Iron Ore Sinter Investigated by Wide-Area Imaging XAFS

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