Passive Film Formed on Si-Mn Steel in Boric Acid-Borate Buffer at 6.5

被引：1
|
作者：
Fushimi, Koji [1 ]
Higa, Kanta [2 ]
Fujimura, Akihiro [2 ]
Shoji, Sunao [3 ]
Kitagawa, Yuichi [1 ,4 ]
Hasegawa, Yasuchika [1 ,4 ]
Katayama, Hideki [5 ]
机构：
[1] Hokkaido Pharmaceut Univ, Kita Ku, Otaru, Hokkaido 0608628, Japan
[2] Hokkaido Univ, Grad Sch Chem Sci & Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
[3] Nara Womens Univ, Fac Engn, Kitauoya Nishimachi, Nara, Nara 6308506, Japan
[4] Hokkaido Univ, Inst Chem React Design & Discovery WPI ICReDD, Kita Ku, Sapporo, Hokkaido 0010021, Japan
[5] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2024年 / 171卷 / 02期
关键词：
high-strength steel; passive film; structures; ENERGY-LOSS-SPECTROSCOPY; ELECTROCHEMICAL PROPERTIES; LATTICE-CONSTANTS; IRON; OXIDATION; FE; MAGNETITE; METALS; OXIDES;
D O I：
10.1149/1945-7111/ad27b7
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Passivity-maintaining current of high-strength (Si-Mn) steel in boric acid-borate buffer at pH 6.5 was larger than that of ferrite/pearlite (F/P) steel. Charge transfer resistance of the Si-Mn steel surface passivated at 1.10 V vs SHE in pH 6.5 buffer was smaller than that of F/P steel surface. Nano-analyses using AES and STEM revealed the details of the structure and components of the passive film on the Si-Mn steel. The inferiorities of passivity of Si-Mn steel were suggested to be due to the alloying components and metallurgical structure to increase the strength of the steel. Passivity of high-strength Si-Mn steel in pH 6.5 buffer was investigated.Charge transfer resistance of passive surface was smaller than that of plain steel.Alloying components and metallurgical structure affect the passivity of the steel.
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页数：11
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