著者

滝沢 貴久男

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.36, no.2, pp.96-104, 1987-02-15 (Released:2009-10-30)

参考文献数

45

被引用文献数

1 1

---

This review describes the effects of environmental and metallurgical factors on the corrosion behaviour of stainless steel in organic acids as a food additive. That is to say, it gives an outline of the corrosive action of organic acids on the stainless steel and the relationship between metallurgical factors such as nonmetallic inclusions and alloying elements and corrosion resistance.

著者

金 栄吉

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.35, no.7, pp.413-420, 1986-07-15 (Released:2009-10-30)

参考文献数

7

被引用文献数

2 1

著者

高須 芳雄 松田 好晴

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.31, no.3, pp.148-155, 1982-03-15 (Released:2009-10-30)

参考文献数

26

被引用文献数

1 1

---

Oxidation behaviors of Fe, Co, Ni, Cu, and four Ni-Cu alloys (81, 64, 42, and 21% Ni) have been studied in 10 Torr (exceptionally, 1×10-3 Torr) of NO at the elevated temperatures from 580-780°C. The oxidation behaviors of such metals and alloys have been examined also in O2 at the same pressures and temperatures for comparison. Various methods such as microgravimetry, X-ray diffractometry, X-ray photoelectron spectroscopy, Auger electron spectroscopy, and Ion micro analysis were adopted for this investigation. The results obtained are summarized as follows: (1) The oxidation of Fe and Co in NO obeyed the cubic and the parabolic rate laws, respectively; while those of Ni and Cu obeyed the linear rate law. The oxidation characteristics (rate, rate law, or activation energy) of these metals in NO were much different from those in O2. (2) Nickel was rapidly oxidized in NO accompanied with the expansion of samples which was caused by the preferential oxidation of grain boundary. (3) The oxidation of Cu in NO was rate-determined by the dissociation of NO on the oxide surface. (4) The oxide formed on Fe, Co, Ni, and Cu in NO were Fe3O4, CoO, NiO, and Cu2O, respectively; while in O2 were Fe3O4 and Fe2O3, CoO, NiO, and Cu2O, respectively. (5) In the oxidation of Ni-Cu alloy system in NO, an accelerating oxidation was observed for Ni-rich alloys. The total amount of oxygen uptake of the Ni-rich alloy was greater than those of the Cu-rich alloys after the accelerating oxidation in NO occurred. (6) The selective oxidation characteristics for Ni-Cu alloy system during the oxidation in NO was also different from those in O2. In the former case, preferential oxidation of Ni occurred, resulting in the formation of NiO-rich oxide layer on the alloy. For the Ni-rich alloy and copper was scarcely oxidized forming only a small amount of Cu2O in the outer layer. As has generally been reported, the oxide film on Ni-Cu alloy formed in O2 consisted of two distinct layers; i. e. the component of the outer layer was copper oxide (mainly CuO) and the inner was NiO.

著者

松橋 亮 安保 秀雄 阿部 征三郎 紀平 寛

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.36, no.9, pp.578-585, 1987-09-15 (Released:2009-10-30)

参考文献数

7

被引用文献数

5 8

---

The mechanism of corrosion of stainless steels in highly concentrated sulfuric acid was studied by the electrochemical method and surface analysis as EPMA and Laser-Raman Spectroscopy. Cyclic potential changes occured in this system about between -0.2V (SCE) (active state) and 0.2V (SCE) (passive state). The anodic reaction was determined as the metal dissolution in both the active and the passive state. The cathodic reaction in the active state near -0.2V (SCE) was mainly dominated by the reduction of hydrogen ion which was clearly indicated by the evolution of hydrogen gas. On the other hand, catholic reaction at the passive state about 0.2V (SCE) was determined as the reduction of molecular sulfuric acid resulting in the formation of sulfur and water. By the analysis of EPMA, precipitated sulfur was found on the specimen surface polarized at 0.2V (SCE) potentiostatically. The in-situ observation of corroding surface by Laser-Raman spectroscopy indicated the formation of precipitated sulfur on the metal surface at the corrosion potential. Cyclic changes in corrosion potentials were considered due to the following mechanisms; dissolved metal ion at the active state formed metal sulfate films on the metal surface, leading the corrosion potential to the passive state. Inversely at the passive state, water as the product of the cathodic reaction accelerated the dissolution of the metal sulfate film to move the corrosion potential to the active state.

著者

小口 八郎

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.32, no.2, pp.104-113, 1983-02-15 (Released:2009-10-30)

参考文献数

25

---

Materials and techniques used in Japanese traditional metal arts and crafts were examined from the standpoint of modern science. Surface finishings reviewed are;(1) Polishing, (2) Roughening or Patterning of metal surface, (3) Fire-gilding with gold amalgam, (4) Coloring.It is concluded that Japanese traditional techniques in metals arts are excellent in ornamenting the metal articles and even suggest some ideas that are applicable to modern technology.

著者

本間 禎一

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.25, no.4, pp.251-265, 1976-04-15 (Released:2009-10-30)

参考文献数

62

被引用文献数

13 4

---

This review makes a survey on that the behaviors and the mechanisms proposed of both the stress generation in oxide films and the plastic deformations of oxides at high temperatures, and discusses a role of the mechanical properties of the oxide films in the oxidation of metals. It suggests that the kinetic studies of some oxidation reactions need to be examined again with the mechanical properties of the oxide included in the considerations.

著者

田中 良平

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.25, no.4, pp.233-250, 1976-04-15 (Released:2009-10-30)

参考文献数

89

被引用文献数

3 1

著者

長阪 道雄

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.24, no.4, pp.193-204, 1975-04-15 (Released:2009-10-30)

参考文献数

55

被引用文献数

1 1

著者

小玉 俊明 藤井 哲雄

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.26, no.11, pp.641-653, 1977-11-15 (Released:2009-10-30)

参考文献数

39

被引用文献数

9 2

---

Chemical factors affecting the corrosion of plumbing materials in fresh waters are reviewed in this article. Detailed discussions are given for pH, alkalinity, dissolved oxygen, anions, water treatment, and calcium carbonate equilibria.

著者

高崎 新一 山本 大輔

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.37, no.12, pp.751-757, 1988-12-15 (Released:2009-10-30)

参考文献数

20

被引用文献数

1 1

---

The practical treatments of environment conditioning and inhibitors for corrosion controlling are described. It is in principle possible to prevent corrosion by the removal of corrosive agents or by the addition of inhibitive agents. Desicants are used to reduce relative humidity which is the most important factor of corrosion in gas phase. In aqueous systems the environments can be made less aggressive by removal of dissolved oxygen, adjustment of pH, or deionization. Inhibitors are classified as volatile, water soluble, or oil soluble. Environment controls to reduce corrosion in boiler water systems, cooling water systems, and petroleum refining processes are also given.

著者

北田 正司

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.39, no.1, pp.26-32, 1990-01-15 (Released:2009-10-30)

参考文献数

10

---

Wood has been one of most useful materials and resources as well as metal, stone, clay and etc. since the ancient times. However it has the defects of its own qualities, one of them is well-known “wood decay”. So called “wood decay” is not merely physical or chemical degradation but a bio-deterioration caused by wood destroying fungi. Wood preservation is the most available techenology to protect wooden materials from decay.

著者

中島 博志

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.33, no.6, pp.349-355, 1984-06-15 (Released:2009-10-30)

参考文献数

12

被引用文献数

2 2

---

Rapid corrosion of buried utility pipes for buildings is caused by macro-cells, most of which are formed between the pipes (anode) and rebars in concrete (cathode).Usually, installing insulating coupling would get good result, but if there is a liquid having electrical conductivity, jumping current must be treated.The jumping current could be treated by extending insulating length of insulating coupling.But some special case a Steel Earth would be needed for the treatment.

著者

川本 輝明

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.33, no.8, pp.478-479, 1984-08-15 (Released:2009-10-30)

参考文献数

4

著者

高橋 秀明 庄子 哲雄 鈴木 正彦

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.28, no.5, pp.292-302, 1979-05-15 (Released:2009-10-30)

参考文献数

16

---

Based upon linear elastic fracture mechanics approach, a damage tolerance design philosophy for light water reactor pressure vessel and piping components where the presence of a significant crack is acceptable, was reviewed with special reference to stress corrosion cracking and corrosion fatigue subcritical crack growth.The published data of failure analysis were discussed from a viewpoint of fracture mechanics evaluation. Here, weld toe cracking in crude oil pipe-lines in Canada, and corrosion-pit initiated cracking in low pressure turbine discs at Hinckley Point ‘A’ and turbine shafts at Ferrybridge power stations in England were compared and discussed. Hence three parameters such as mechanical, metallurgical and environmental factors are taken into consideration.

著者

下郡 一利

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.30, no.6, pp.349-357, 1981-06-15 (Released:2009-10-30)

参考文献数

45

被引用文献数

7 4

---

Service experiences were summarized on the hydrogen absorption by titanium and factors affecting the absorption were analyzed and reviewed both on environmental side and metallurgical side. Some environmental conditions have been known to cause this absorption but further investigations are still needed in the future. Several preventive methods, such as surface oxidation treatment, have been applied with satisfactory results in some cases.

著者

吉田 平太郎

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.33, no.7, pp.409-416, 1984

著者

山下 嗣人

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.36, no.5, pp.315-316, 1987-05-15 (Released:2009-10-30)

参考文献数

6

著者

石原 靖子 奥村 浩

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.39, no.8, pp.432-440, 1990-08-15 (Released:2009-10-30)

参考文献数

10

---

Recently, scientific interest to plastic materials has been grown as the important materials in the various fields of biology. However, these materials are not always utilized efficiently. There are various levels of utilization among various fields of biology. In this paper, present situation and problems of the utilization of plastic materials was discussed concentratedly focusing in the fields of neural cell culture and fish farming.

著者

佐々木 英次 中原 東郎 神田 幸雄 大里 一夫 栂野 秀夫

出版者

社団法人 腐食防食協会

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.26, no.3, pp.125-132, 1977

被引用文献数

2

---

The corrosion behavior of mild steel was investigated in a culture where hydrogen gas was bubbled. A dual cell system was employed. That is, in the first cell the bacteria produced hydrogen sulfide, which was introduced into the second cell by hydrogen gas. The bacteria were cultured in autotrophic or heterotrophic conditions. The electrode potential and polarization resistance of the specimens in both of the cells were measured. The variations of electrode potential and corrosion rate of the steel in both of the cell could be explained, corresponding to the variation of the concentration of hydrogen sulfide. The weight loss of the steel in the first cell was smaller than that in the second cell. There was no evidence that hydrogen depolarization by the bacteria occured. It seems to be more resonable that the anodic and catholic reactions were stimulated catalytically by hydrogen sulfide, not by the bacteria. On the other hand, in autotrophic condition, the bacteria could not grow so much, and the amount of biogenic hydrogen sulfide was much smaller than that in heterotrophic condition. Organic substances is necessary for the biosynthesis of the bacteria and for the great evolution of hydrogen sulfide. Therefore, in order to prevent the corrosion by the bacteria, in practice, a desalting plant ought to be designed to eliminate organic substances as much as possible.

著者

大境 彰

出版者

Japan Society of Corrosion Engineering

雑誌

防食技術 (ISSN:00109355)

巻号頁・発行日

vol.36, no.12, pp.799-805, 1987-12-15 (Released:2009-10-30)

参考文献数

6

---

The problem concerning electrolysis corrosion of pipe line caused by stray current from DC electrified railroad was fairly solved by appling drainage method. In this report next item is explained. (1) Leakage current from railroad and electrolysis corrosion. (2) Construction of drainage method. (3) Recent problem of them.