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Maamoun, I.; Rushdi, M.*; Falyouna, O.*; Eljamal, R.*; Eljamal, O.*
Separation and Purification Technology, 308, p.122863_1 - 122863_16, 2023/03
Times Cited Count：3 Percentile：34.99(Engineering, Chemical)Konishi, Hiroyuki; Yamashita, Masato*; Uchida, Hitoshi*; Mizuki, Junichiro
Proceedings of 16th International Corrosion Congress (CD-ROM), 6 Pages, 2005/09
XANES measurements of rust layers formed on Fe, Fe-Cr alloys and Fe-Ni alloys exposed to a Cl-rich atmosphere have been performed using synchrotron radiation in order to clarify the relation between the structural properties of the rust layer on weathering steel and anticorrosive alloying elements and/or chloride ions. The XANES spectra around Cl K-edge revealed that the rust layer on the Fe-based binary alloys contains unidentified chloride in addition to akagan
iteite. The Fe K-edge XANES results indicated that the rust layers are composed mainly of well-known iron oxides, goethite, akaganite, lepidocrocite and magnetite. In particular, the mole ratio of akaganite in the rust layers on the Fe-Ni alloys is relatively higher than that of the Fe-Cr alloys. The Cr K-edge XANES spectra of the rust layers on the Fe-Cr alloys depends on the Cr alloy content. Therefore, the local structure of Cr in the rust layer is variable with the Cr density. In contrast, the Ni K-edge XANES results show that the local structure of Ni in the rust layer are unique in a certain Ni content range.
Konishi, Hiroyuki; Yamashita, Masato*; Uchida, Hitoshi*; Mizuki, Junichiro
Materials Transactions, 46(2), p.329 - 336, 2005/02
Times Cited Count：28 Percentile：80.42(Materials Science, Multidisciplinary)Chloride in atmosphere considerably reduces the corrosion resistance of conventional weathering steel containing a small amount of Cr. Ni is an effective anticorrosive element for improving the corrosion resistance of steel in a Cl-rich environment. In order to clarify the structure of the protective rust layer of weathering steel, Cl and Fe K-edge X-ray absorption near edge structure (XANES) spectra of atmospheric corrosion products (rust) formed on Fe, Fe-Ni and Fe-Cr alloys exposed to Cl-rich atmosphere were measured. The Fe K-XANES measurements enable the characterization of a mixture of iron oxides such as rust. The chemical composition of the rust was determined by performing pattern fitting of the measured spectra. All the rust is composed mainly of goethite, akaganite, lepidocrocite and magnetite. Among these iron oxides, akaganite in particular is the major component in the rust. Additionally, the amount of akaganite in the rust of Fe-Ni alloy is much greater than that in rust of Fe-Cr alloy. Akaganite is generally considered to facilitate the corrosion of steel, but our results indicate that akaganite in the rust of Fe-Ni alloy is quantitatively different from that in rust of Fe-Cr alloy and does not facilitate the corrosion of steel. The shoulder peak observed in Cl K-XANES spectra reveals that the rust contains a chloride other than akaganite. The energy of the shoulder peak does not correspond to that of any well-known chlorides. In the measured spectra, there is no proof that Cl, by combining with the alloying element, inhibits the alloying element from acting in corrosion resistance. The shoulder peak appears only when the content of the alloying element is lower than a certain value. This suggests that the generation of the unidentified chloride is related to the corrosion rate of steel.
Konishi, Hiroyuki; Yamashita, Masato*; Uchida, Hitoshi*; Mizuki, Junichiro
Materials Transactions, 45(12), p.3356 - 3359, 2004/12
Times Cited Count：10 Percentile：50.63(Materials Science, Multidisciplinary)Cl K-edge XANES measurements of atmospheric corrosion products (rust) formed on Fe, Fe-Ni and Fe-Cr alloys in chloride pollution have been performed using synchrotron radiation in order to clarify roles of anticorrosive alloying elements and of Cl in the corrosion resistance of weathering steel. The spectra of binary alloys show a shoulder structure near the absorption edge. The intensity of the shoulder peak depends on the kind and amount of the alloying element, whereas the energy position is invariant. This indicates that Cl is not combined directly with alloying elements in the rust.
ion implanted SUS304 stainless steel by in situ SR-XPS and ex situ scanning tunnelling microscopeLi, Y.; Baba, Yuji; Sekiguchi, Tetsuhiro
Corrosion Science, 43(5), p.903 - 917, 2001/05
Times Cited Count：14 Percentile：62.29(Materials Science, Multidisciplinary)no abstracts in English
XPS using synchrotron radiationLi, Y.; Baba, Yuji; Sekiguchi, Tetsuhiro
Journal of Materials Science, 35(24), p.6123 - 6130, 2000/12
Times Cited Count：3 Percentile：17.3(Materials Science, Multidisciplinary)no abstracts in English
; ; Tachikawa, Enzo
Boshoku Gijutsu, 36(3), p.127 - 133, 1987/00
no abstracts in English
Cr; ; Motoki, Ryozo; Yamamoto, Takeo; Nishida, Hiroshi*; Shin, Sumio*; Sato, Kiichi*; *
Radioisotopes, 34(3), p.144 - 150, 1985/00
no abstracts in English
; *
Radiat.Eff., 81, p.231 - 242, 1984/00
no abstracts in English
-Al
O
single crystals; C.W.White*; J.M.Williams*; C.J.McHargue*; O.W.Holland*; M.M.Abraham*; B.R.Appleton*
Journal of Applied Physics, 54(2), p.683 - 698, 1983/00
Times Cited Count：75 Percentile：92.91(Physics, Applied)no abstracts in English
O implanted with Cr and ZrC.J.McHargue*; ; B.R.Appleton*; C.W.White*; J.M.Williams*
Metastable Materials Formation by Ion Implantation,Vol.1, p.147 - 153, 1982/00
no abstracts in English
; ;
ACS Symposium Series, 161, p.255 - 265, 1981/00
no abstracts in English
;
Journal of Nuclear Science and Technology, 15(2), p.141 - 144, 1978/02
Times Cited Count：3no abstracts in English
; *; *
Journal of the Physical Society of Japan, 32(2), p.394 - 399, 1972/02
Times Cited Count：14no abstracts in English
Fe for the reactions of 
He and on chromium*; ; *;
Radiochimica Acta, 18(2), p.108 - 111, 1972/02
oil Atoms Produced in Various Chromates under Low Temperature Irradia ion; ; ; ; Si Jung YEH*; Mo Hsing Yang*; Tsai Feng Chin*; Chin Tsang Chen*
Journal of Nuclear Science and Technology, 7(6), p.300 - 305, 1970/06
no abstracts in English
; ; ; ; Si Jung YEH*; Mo-Hsing YANG*; Ping Yao CHEN*; Chin Nan KE*
Journal of Nuclear Science and Technology, 6(2), p.75 - 80, 1969/02
Times Cited Count：3no abstracts in English
Shibata, Nagao*; Amano, Hiroshi*; ; Ebihara, Hiroshi*
ATOMPRAXIS, 15(Herf1), p.1 - 5, 1969/00
no abstracts in English
; ; ;
Atompraxis, 15, p.1 - 5, 1969/00
no abstracts in English
Si Jung YEH*; Shibata, Nagao*; Amano, Hiroshi*; Yoshihara, Kenji*; M-Hsing YANG*; Ping Yao CHEN*; Chin Nan KE*; Kudo, Hiroshi*
Journal of Nuclear Science and Technology, 6(2), p.75 - 80, 1969/00
no abstracts in English
