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Journal Articles

Corrosion monitoring in humidity-controlled environment simulating gamma ray irradiation

Omori, Atsushi*; Akiyama, Eiji*; Abe, Hiroshi*; Hata, Kuniki; Sato, Tomonori; Kaji, Yoshiyuki; Inoue, Hiroyuki*; Taguchi, Mitsumasa*; Seito, Hajime*; Tada, Eiji*; et al.

Zairyo To Kankyo, 69(4), p.107 - 111, 2020/04

To evaluate the effect of oxidants, which are formed by radiolysis of water under gamma ray irradiation, on the corrosion of a carbon steel in humid environment, ozone was introduced as a model oxidant in to humidity-controlled air at 50$$^{circ}$$C in a thermo-hygrostat chamber. Corrosion monitoring was performed by using an Atmospheric Corrosion Monitor-type (ACM) sensor consisting of a carbon steel anode and an Ag cathode. The output current of the ACM sensor was increased with the increase in relative humidity and it was obviously increased with the increase in the introduced ozone concentration at each relative humidity. The results indicate that ozone accelerates the corrosion of the carbon steel. The effect of ozone on the corrosion acceleration is attributed to the fast reduction reaction and fast dissolution reaction in to water compared to that of oxygen.

JAEA Reports

Development of resistance welding process; Manufacture of test specimens for ODS steel strength evaluation

Endo, Hideo; ; ; *; *

JNC-TN8410 2000-007, 89 Pages, 2000/03

JNC-TN8410-2000-007.pdf:6.28MB

(1)Outline of examination. Various test specimens were made to evaluate and confirm the weld strength properties of the oxide dispersion strengthened (ODS) cladding tube material (martensitic and ferritic steel), which had been manufactured in JFY 1997. The examination consisted of tensile tests (RT,650$$^{circ}$$C, 700$$^{circ}$$C, 800$$^{circ}$$C), internal pressure creep tests, internal pressure burst tests, and a rapid heating burst tests. (2)Examination results. The results of the tensile tests are as follows: (ferritic and martensitic) (a)All test specimens from RT to 700$$^{circ}$$C failed in the tube. The weld zones had not failed. (b)The test specimens at 800$$^{circ}$$C failed in the weld zones. There was little elongation. (ferritic) (a)The weld zone had fine grain structure and carbide precipitates. (martensitic) (a)Carbide had precipitated in the weld zone. From these results, the strength of weld zone decreased extremely at temperatures exceeding the endurance limit (700$$^{circ}$$C) All of the internal pressure burst test specimens and the rapid heating burst test specimens failed in the tube and not the weld zone. (3)The quality assurance method of the test specimens. The weld reliability of the test specimens were confirmed by the process control of the welding conditions, by using control test specimens, and ultrasonic testing. Confirmation of the process control of the welding conditions; current wave, the voltage waveform, the accelerogram, and the displacement ripple in the welding process was recorded to assure an abnormal value had not occurred. (Process control of welding condition) The results the current waveform, voltage waveform, accelerogram, and the displacement waveform were excellent. (test specimens) The weld joint was excellent based on metallography examination. (Ultrasonic testing) The length of the weld joint was measured and found to be adequate. The reliability the weld joint can be assured by using the above-mentioned method.

Journal Articles

New hopes to radiation water-treatment technology

Arai, Hidehiko

Hoshasen To Sangyo, (82), p.22 - 25, 1999/06

no abstracts in English

Journal Articles

Safety aspects for radiation processing

Firumu Bajji Nyusu, 0(232), p.6 - 10, 1996/04

no abstracts in English

JAEA Reports

None

PNC-TJ1533 96-005, 199 Pages, 1996/03

PNC-TJ1533-96-005.pdf:7.37MB

no abstracts in English

Journal Articles

Vulcanization of natural rubber latex with low energy electron accelerator

Makuuchi, Keizo; Yoshii, Fumio; *; *; F.Akhtar*

Nippon Gomu Kyokai-Shi, 69(7), p.500 - 506, 1996/00

no abstracts in English

Journal Articles

Application of ioniging radiation in our life; Processing of food

Ito, Hitoshi

SUT Bulletin, 0(11), p.25 - 29, 1996/00

no abstracts in English

Journal Articles

Simulation of radiation-induced ozone decomposition in water in the presence of organic compounds

Arai, Hidehiko; Namba, Hideki; Miyata, Teijiro; Arai, Michimasa; *; Sunaga, Hiromi

JAERI-Conf 95-003, 0, p.184 - 188, 1995/03

no abstracts in English

Journal Articles

Treatment of supernatant from sewage sludge by electron beam irradiation combined with ozone

; Arai, Hidehiko; Aizawa, Masaki*; Shimooka, Toshio*; Shimizu, Ken*; Sugiyama, Masahi*

Mizu Shori Gijutsu, 36(5), p.11 - 17, 1995/00

no abstracts in English

JAEA Reports

None

Matsumoto, Shiro*

PNC-TJ1533 94-002, 217 Pages, 1994/03

PNC-TJ1533-94-002.pdf:7.96MB

no abstracts in English

Journal Articles

Decomposition of t-butanol in water by $$gamma$$-irradiation combined with ozone; Cupric ion effect

M.J.Lee*; Arai, Hidehiko; Miyata, Teijiro

Chemistry Letters, 0(6), p.1069 - 1070, 1994/00

no abstracts in English

Journal Articles

Food irradiation, movement of radiation processing in the world; At IMRP Meeting

Ito, Hitoshi

Hoshasen To Sangyo, 0(57), p.16 - 19, 1993/00

no abstracts in English

Journal Articles

Sterilizing technology by ultraviolet rays,radiation and ozone

Ito, Hitoshi

Shokuhin To Kaihatsu, 27(6), p.9 - 14, 1992/00

no abstracts in English

Journal Articles

JAEA Reports

Removal of SO$$_{x}$$ and NO$$_{x}$$ in coal-fired flue gas by the addition of ozone and ammonia

Namba, Hideki; Suzuki, Nobutake; Tokunaga, Okihiro

JAERI-M 89-177, 18 Pages, 1989/11

JAERI-M-89-177.pdf:0.61MB

no abstracts in English

Journal Articles

Destruction of fulvic acid in water by simultaneous use of radiation and ozone

; ; ;

Suido Kyokai Zasshi, 53(4), p.35 - 42, 1984/00

no abstracts in English

JAEA Reports

Installation of 3MeV 75KW Electron Accelerator

; ; ; ;

JAERI-M 9345, 34 Pages, 1981/03

JAERI-M-9345.pdf:1.11MB

no abstracts in English

Journal Articles

Ozonization of organic compounds in water

;

Mizu Shori Gijutsu, 22(2), p.145 - 152, 1981/00

no abstracts in English

Journal Articles

Treatment of waste water

Radiation Physics and Chemistry, 18(1-2), p.383 - 388, 1981/00

no abstracts in English

Journal Articles

28 (Records 1-20 displayed on this page)