Erosion-corrosion of 304N austenitic steels in liquid Pb-Bi flow perpendicular to steel surface

doi:10.1016/j.matchar.2021.111054

	Erosion-corrosion of 304N austenitic steels in liquid Pb-Bi flow perpendicular to steel surface
	Li, Cong 4,5; Liu, Yujing 1; Zhang, Feifei 3; Fang, Xiaodong 6; Liu, Zheng 2
刊名	MATERIALS CHARACTERIZATION
	2021-05-01
卷号	175
关键词	304N austenitic stainless steel Oxygen-saturated LBE Erosion Breakaway oxidation Strain-induced martensite transformation Stacking fault energy
ISSN号	1044-5803
DOI	10.1016/j.matchar.2021.111054
通讯作者	Liu, Yujing(liuyujing555@gmail.com) ; Fang, Xiaodong(xdfang@aiofm.ac.cn)
英文摘要	In this paper, corrosion performance of 304N austenitic stainless steel with 0.17 wt.% nitrogen was studied in flowing oxygen-saturated lead bismuth eutectic (LBE) at 400 degrees C. Perpendicular flow pattern was introduced to steel surface, on which various corrosion behaviors, i.e. oxidation, erosion, and dissolution, were simultaneously detected even at a low fluid rate of similar to 1 m/s after 1000 h. This allowed an investigation into their synergistic effects. Besides, degradation in chemical compositions and mechanical properties was profoundly identified within steel subsurface by means of multi-scale characterization. Role of subsurface degradation in different corrosion failure modes was then elucidated. With regard to breakaway oxidation, an interesting mechanism was proposed for this essential feature of austenitic steels. Plastic deformation microstructure within perpendicularly eroded austenitic steel subsurface, confirmed in other flowing corrosive media, was revealed in liquid LBE flow for the first time and explained in terms of stacking fault energy. Crack across the degraded steel subsurface was proven to be responsible for LBE penetration and selective dissolution attack on steel matrix.
资助项目	Natural Science Foundation of Top Talent of SZTU[2020101] ; National Natural Science Foundation of China[52001030] ; National Natural Science Foundation of China[51803200]
WOS关键词	BISMUTH EUTECTIC LBE ; STAINLESS-STEELS ; DEGREES-C ; MICROSTRUCTURAL EVOLUTION ; DISSOLUTION CORROSION ; OXIDATION MECHANISM ; ELECTRON-MICROSCOPY ; FE-9CR-1MO STEEL ; STRAIN-RATE ; LEAD
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000647775100005
资助机构	Natural Science Foundation of Top Talent of SZTU ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/122188]
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Yujing; Fang, Xiaodong
作者单位	1.Changsha Univ Sci & Technol, Coll Mat Sci & Engn, 960,2nd Sect,Wanjiali RD S, Changsha 410004, Hunan, Peoples R China 2.Nanchang Hangkong Univ, Sch Aeronaut Mfg Engn, Nanchang 330063, Jiangxi, Peoples R China 3.China Nucl Power Technol Res Inst, Shenzhen 518026, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 5.Univ Sci & Technol China, Hefei 230026, Peoples R China 6.Shenzhen Technol Univ, Coll New Mat & New Energies, Shenzhen 518118, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Li, Cong,Liu, Yujing,Zhang, Feifei,et al. Erosion-corrosion of 304N austenitic steels in liquid Pb-Bi flow perpendicular to steel surface[J]. MATERIALS CHARACTERIZATION,2021,175.
APA	Li, Cong,Liu, Yujing,Zhang, Feifei,Fang, Xiaodong,&Liu, Zheng.(2021).Erosion-corrosion of 304N austenitic steels in liquid Pb-Bi flow perpendicular to steel surface.MATERIALS CHARACTERIZATION,175.
MLA	Li, Cong,et al."Erosion-corrosion of 304N austenitic steels in liquid Pb-Bi flow perpendicular to steel surface".MATERIALS CHARACTERIZATION 175(2021).