The corrosion behavior in CO2 medium of 20# steel under the (CO2/aqueous solution) gas-liquid two-phase stratified flow condition

doi:10.1088/2053-1591/aae667

	The corrosion behavior in CO2 medium of 20# steel under the (CO2/aqueous solution) gas-liquid two-phase stratified flow condition
	Yang Gui-rong1 ; Song Wen-ming 2; Wang Fu-qiang1 ; Ma Ying1 ; Hao Yuan 1
	2019-01
发表期刊	MATERIALS RESEARCH EXPRESS
ISSN	2053-1591
卷号	6 期号:1
摘要	The corrosion rate, morphology, and composition of corrosion products of 20# seamless steel in CO2 medium under gas-liquid two-phase stratified flow conditions (CO2/aqueous solution) have been investigated using the weight loss method, scanning electron microscopy with energy-dispersive x-ray spectroscopy, and x-ray diffraction. The forming mechanism of corrosion products has been discussed. Results showed the irregular zigzag trend of the corrosion rate curve with the gradual extension of corrosion time. The corrosion rate peaked at corrosion times of 4 and 8 h, with the values reaching 1.49 and 0.647 mm/a, respectively. At the beginning of the corrosion process, a layer of special iron oxide formed rapidly on the 20# steel surface. The local corrosion products with cell shape precipitate and grow on the special iron oxide surface with the extension of corrosion time, and the initial corrosion product is mainly strip-shaped along the CO2 gas flow direction. The local cellular corrosion products extended along the perpendicular direction of gas flow to gradually form an entire covering product layer with the extension of corrosion time. The main phases of corrosion products include FeCO3 and iron oxides. The loose inner layer mainly comprised Fe3C and little amount FeCO3, whereas the dense outer layer was mainly composed of FeCO3 and a few iron oxides. The loose corrosion product layer presented a period of densification after formation.
关键词	20# seamless steel CO2 corrosion stratified flow corrosion products characteristics mechanism
DOI	10.1088/2053-1591/aae667
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[51765035] ; Scientific Research Project for Higher School of Gansu Province of China[2017A-015]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000517551800001
出版者	IOP PUBLISHING LTD
来源库	WOS
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64121
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院机电工程学院
通讯作者	Yang Gui-rong
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanpec Technol Ltd, Lanzhou 730070, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Yang Gui-rong,Song Wen-ming,Wang Fu-qiang,et al. The corrosion behavior in CO2 medium of 20# steel under the (CO2/aqueous solution) gas-liquid two-phase stratified flow condition[J]. MATERIALS RESEARCH EXPRESS,2019,6(1).
APA	Yang Gui-rong,Song Wen-ming,Wang Fu-qiang,Ma Ying,&Hao Yuan.(2019).The corrosion behavior in CO2 medium of 20# steel under the (CO2/aqueous solution) gas-liquid two-phase stratified flow condition.MATERIALS RESEARCH EXPRESS,6(1).
MLA	Yang Gui-rong,et al."The corrosion behavior in CO2 medium of 20# steel under the (CO2/aqueous solution) gas-liquid two-phase stratified flow condition".MATERIALS RESEARCH EXPRESS 6.1(2019).