Cavitation corrosion of nodular cast iron (NCI) in seawater - Microstructural effects

被引：19

作者：

Al-Hashem, A ^{[1
]}

Abdullah, A ^{[1
]}

Riad, W ^{[1
]}

机构：

[1] Kuwait Inst Sci Res, Petr Res & Studies Ctr, Safat 13109, Kuwait

来源：

MATERIALS CHARACTERIZATION | 2001年 / 47卷 / 05期

关键词：

cast iron; seawater; cavitation corrosion;

D O I：

10.1016/S1044-5803(02)00185-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An investigation was carried out to determine the effect of the microstructure of nodular cast iron (NCI) on its cavitation corrosion behavior in natural seawater. The cavitation tests were conducted using a cavitation-induced facility at a frequency of 20 kHz on detached specimens. Morphological examinations on cavitated specimens indicated that the surface of NCI became very rough with large size cavity pits. Examination by optical microscopy of cross-sectioned specimens revealed the presence of microcracks in the bottom of cavity pits. Localized material removal on the NCI surface was due to ductile tearing and brittle modes of failure. (C) 2001 Elsevier Science Inc. All rights reserved.

引用

页码：383 / 388

页数：6

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