In-depth distribution of rusts on a plain carbon steel and weathering steels exposed to coastal-industrial atmosphere for 17 years
In-depth distribution of rusts on a plain carbon steel and weathering steels exposed to coastal-industrial atmosphere for 17 years
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DOI：
10.1016/s0010-938x(03)00070-2
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发表时间：
2003-11-01
影响因子：
8.3
通讯作者：
Kikuchi, M
中科院分区：
文献类型：
--
作者：
Asami, K;Kikuchi, M
研究了日本沿海+工业区桥下暴露在大气中17年的两种耐候钢和一种普通碳钢的深度铁锈分布。锈层中均含有α-FeOOH、β-FeOOH、γ-FeOOH、Fe 3 O 4和所谓的非晶态锈，锈层中有厚有薄，分布精细复杂。在这些锈种中，α-FeOOH在所有标本上占主导地位。a-FeOOH几乎均匀地穿过锈层出现。耐候钢上的浓度高于普通碳钢。β-FeOOH主要存在于锈层厚的部位，在锈层薄的部位很少。α-FeOOH的浓度较高，γ-FeOOH的耐候钢比普通碳钢低。无定形锈位于锈层的底部，与钢的类型无关。磁铁矿的浓度与β-FeOOH的浓度呈负相关。(C)2003 Elsevier Ltd.保留所有权利。
In-depth distribution of rusts on two weathering steels and a plain carbon steel exposed to atmosphere for 17 years under a bridge at a coastal + industrial region in Japan were studied. In the rust layer on all specimens, alpha-FeOOH, beta-FeOOH, gamma-FeOOH, Fe3O4 and so-called amorphous rust were found. Within rust layers, there were thick parts and thin parts, which were finely and complicatedly distributed on steels. Among these rust species, alpha-FeOOH was dominant on all specimens. a-FeOOH appeared almost homogeneously through the rust layer. Its concentration was higher on weathering steels than on plain carbon steel. beta-FeOOH was found mainly at thick parts and was scarce at thin parts of rust layers. Concentration of alpha-FeOOH was higher and that of gamma-FeOOH was lower on weathering steels than on plain carbon steel. Amorphous rust was located at the bottom of the rust layer irrespective of steel types. Concentration of magnetite was negatively correlated with concentration of beta-FeOOH. (C) 2003 Elsevier Ltd. All rights reserved.