Corrosion and erosion-corrosion behaviors of carbon steel in naphthenic acid media

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	Corrosion and erosion-corrosion behaviors of carbon steel in naphthenic acid media
	X. Q. Wu; H. M. Jing; Y. G. Zheng; Z. M. Yao; W. Ke
	2002
发表期刊	Materials and Corrosion-Werkstoffe Und Korrosion
ISSN	0947-5117
卷号	53 期号:11 页码:833-844
摘要	The naphthenic acid corrosion (NAC) and erosion-corrosion (NAEC) behaviors of carbon steel were investigated detailedly in laboratory. The resistance to NAEC of pack-aluminized carbon steel and carbon steel coated by high velocity oxygen-fuel (HVOF) thermal-sprayed AISI 316L stainless steel, was also investigated in both laboratory and an oil refinery. It was found that the control-step of NAC was primarily dependent on the temperature. The NAC rate of carbon steel increased markedly with the increase of the total acid number and temperature, which may be attributed to the enhanced absorption and active reaction of naphthenic acid molecules on the metal surface. Increasing the velocity of flow seriously aggravated NAEC, especially in the high temperature range. The reasons were closely associated with the enhanced mass transfer and the accelerated active reaction as well as the rapid spallation of corrosion products from the metal surface. Both the aluminized carbon steel and the carbon steel covered by HVOF coating showed better resistance against NAEC compared to the carbon steel due to higher microhardness and corrosion resistance of their surface-layers. The HVOF coating is hopeful to be applied for NAEC prevention of the components in oil refineries in view of present experimental results.
部门归属	chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;wu, xq (reprint author), chinese acad sci, state key lab corros & protect, inst met res, s dist,62 wencui rd, shenyang 110016, peoples r china
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WOS记录号	WOS:000179426600005
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36463
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Q. Wu,H. M. Jing,Y. G. Zheng,et al. Corrosion and erosion-corrosion behaviors of carbon steel in naphthenic acid media[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2002,53(11):833-844.
APA	X. Q. Wu,H. M. Jing,Y. G. Zheng,Z. M. Yao,&W. Ke.(2002).Corrosion and erosion-corrosion behaviors of carbon steel in naphthenic acid media.Materials and Corrosion-Werkstoffe Und Korrosion,53(11),833-844.
MLA	X. Q. Wu,et al."Corrosion and erosion-corrosion behaviors of carbon steel in naphthenic acid media".Materials and Corrosion-Werkstoffe Und Korrosion 53.11(2002):833-844.