铁锈物理化学  (Ⅰ)穆斯堡尔内转换电子谱研究取自海水的低合金钢上的阻挡层铁锈

中国腐蚀与防护学报

1982, Vol. 2

Issue (2): 1-9

研究报告

本期目录 | 过刊浏览

铁锈物理化学 (Ⅰ)穆斯堡尔内转换电子谱研究取自海水的低合金钢上的阻挡层铁锈

陈俊明;蔡振月;王志杰;王才虎;张厚增;胡文祥;俞方华;张桂林

中国科学院上海冶金研究所;中国科学院上海冶金研究所;中国科学院上海冶金研究所;中国科学院上海冶金研究所;中国科学院上海冶金研究所;中国科学院上海原子核研究所;中国科学院上海原子核研究所;中国科学院上海原子核研究所

PHYSICAL CHEMISTRY OF IRON RUST Ⅰ. CONVERSION ELECTRON M SSBAUER SPECTROSCOPY ANALYSIS OF THE BARRIER LAYER RUSTS FORMED ON LOW ALLOY STEELS

Chen Junming Cai Zhenyue Wang Zhijie Wang Caihu and Zhang Houzeng (Shanghai Institute of Metallurgy; Academia Sinica) Hu Wenxiang Yu Fanghua and Zhang Guilin (Shanghai Institute of Nuclear Research; Academia Sinica)

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摘要: 以穆斯堡尔内转换电子谱第一次测定了海水腐蚀后两种不同耐蚀性低合金钢试样的阻挡层铁锈的组成。测定结果表明,在空气中曝露后,两种钢的阻挡层铁锈基本上相同,即皆由约80％β-FeOOH和约20％γ-FeOOH所组成。对这样结果所引起的一些问题,例如合金元素在腐蚀过程中的作用,沉积层铁锈的形成等进行了讨论。提出离海水后的试样不同于在海水中腐蚀着的试样,前者由于氧化、脱水、时效等原因,其阻挡层铁锈实际上只残存终态相,而消失在海水中所具有的中间态相。

Abstract：Phase composition of the barrier layer rusts of two alloy steels with different corrosion resistance in sea water was determined by conversion electron Mossbauer spectroscopy for the first time. It seems that, the barrier layer rusts of the two kinds of steel after exposure to air have similar composition. They consist of about 80% β-FeOOH and 20% γ-FeOOH. The problems raised by the above results such as the effect of alloy elements on corrosion process and the formation of the deposited layer rust are discussed. It is suggested that samples taken out from sea water are different from samples in sea water. In the barrier layer rust formed on samples taken out from sea water there remained final state phases (β-,γ-FeOOH)only. The intermediate state phases observed on samples in sea water are lost by oxidation, dehydration and age effect etc. after the samples are taken out from the sea.

收稿日期: 1982-04-25

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	陈俊明
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	张桂林
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陈俊明;蔡振月;王志杰;王才虎;张厚增;胡文祥;俞方华;张桂林. 铁锈物理化学 (Ⅰ)穆斯堡尔内转换电子谱研究取自海水的低合金钢上的阻挡层铁锈[J]. 中国腐蚀与防护学报, 1982, 2(2): 1-9.
. PHYSICAL CHEMISTRY OF IRON RUST Ⅰ. CONVERSION ELECTRON M SSBAUER SPECTROSCOPY ANALYSIS OF THE BARRIER LAYER RUSTS FORMED ON LOW ALLOY STEELS. J Chin Soc Corr Pro, 1982, 2(2): 1-9.

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