Effect of Surface Scratch on Corrosion Behavior of Alloy 690TT Heat Exchanger Tubes

doi:10.11901/1005.3093.2021.001

Chinese Journal of Materials Research

2021, Vol. 35

Issue (11): 827-834 DOI: 10.11901/1005.3093.2021.001

ARTICLES

Current Issue | Archive | Adv Search

Effect of Surface Scratch on Corrosion Behavior of Alloy 690TT Heat Exchanger Tubes

MENG Fanjiang¹, WU Bin²^,³, LV Yunhe⁴, MING Hongliang²(

), BAO Yichen¹, WANG Jianqiu², HAN En-Hou²

^1.Shanghai Nuclear Engineering Research & Design Institute Ltd. Co. , Shanghai 200233, China
^2.CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
^3.School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
^4.Nuclear and Radiation Safety Center, Beijing 100082, China

Cite this article:

MENG Fanjiang, WU Bin, LV Yunhe, MING Hongliang, BAO Yichen, WANG Jianqiu, HAN En-Hou. Effect of Surface Scratch on Corrosion Behavior of Alloy 690TT Heat Exchanger Tubes. Chinese Journal of Materials Research, 2021, 35(11): 827-834.

Download:

HTML

PDF(10633KB)
Export: BibTeX | EndNote (RIS)

Abstract

Three kinds of samples with different scratch depths on the surface of alloy 690TT for heat exchanger tubes are prepared. The microstructure changes caused by scratch and the effect of scratches on the corrosion and SCC behavior were systematically investigated. The results show that severe plastic deformation occurred near the scratch bank and the scratched groove. A large number of sliding steps and tear deformation generated near the scratched bank. The scratch depth had no obvious influence on the morphology, composition and distribution of corrosion products in different areas of scratches. As the scratch depth increased both the number and the length of SCC cracks increased, indicating that the SCC sensitivity of the material increased. Defects such as slip steps and micro cracks produced during the scratching process were likely to be the preferential positions of SCC initiation.

Key words: Metallic materials Alloy 690TT Surface scratch Microstructure SCC

Received: 11 January 2021

ZTFLH:

TG174

Fund: National Key R & D Program(2019YFB1900900);National Natural Science Foundation of China(51771211);the Open-ended Fund of the CAS Key laboratory of Nuclear Materials and Safety Assessment (IMR)(2021NMSAKF01)

About author: MING Hongliang, Tel: (024)23998826, E-mail: hlming12s@imr.ac.cn

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	Fanjiang MENG
	Bin WU
	Yunhe LV
	Hongliang MING
	Yichen BAO
	Jianqiu WANG
	En-Hou HAN

URL:

https://www.cjmr.org/EN/10.11901/1005.3093.2021.001 OR https://www.cjmr.org/EN/Y2021/V35/I11/827

Table 1 Chemical compositions of Alloy 690TT

Fig.1 Metallographic structure of of Alloy 690TT matrix

Fig.2 Laser confocal test results of scratched samples with different scratch depths (a) 30 μm; (b) 70 μm; (c) 110 μm

Fig.3 Surface morphologies of the scratched sample with the scratch depth of 30 μm, 70 μm and 110 μm (a1~a3) overview; (b1~b3) scratch groove; (c1~c3) scratch bank and affected area

Fig.4 Metallographic microstructure of scratched samples with different scratch depths (a) 30 μm; (b) 70 μm; (c) 110 μm

Fig.5 EBSD results of the sample with a 70 μm scratch (a) Inverse pole figure; (b) Kernel average misorientation; (c) Image quality superimposed grain boundary type figure

Fig.6 Morphologies of oxide on scratched samples with the scratch depth of 30 μm, 70 μm and 110 μm after a 2000 h corrosion test (a1~a3) overview; (b1~b3) scratch groove; (c1~c3) scratch bank; (d1~d3) affected area

Fig.7 Energy spectrum analysis results of the oxide on the scratched sample after a 2000 h corrosion (a) the scratch groove (b) the scratch bank and the scratch affected area

Fig.8 Cross-sectional morphologies of scratched samples with the scratch depth of 30 μm,70 μm and 110 μm after 2000 h corrosion (a1~a3) scratched groove; (b1~b3) left scratch bank; (c1~c3) right scratch bank

Table 2 Information of cracks on the cross-sections of samples with different scratch depths (including parallel samples) after 2000 h corrosion test

1	Zinkle S J, Was G S. Materials challenges in nuclear energy [J]. Acta Mater., 2013, 61(3): 735
2	Zang X N. Nuclear Power Plant Systems and Equipment [M]. Beijing: Tsinghua University Press, 2010
	臧希年. 核电厂系统及设备 [M]. 北京: 清华大学出版社, 2010
3	Wu B, Meng F J, He G Q, et al. An overview on the stress corrosion cracking caused by scratches on steam generator tubes [J]. Corrosion and Protection, 2020, 41(09): 1
	吴斌, 孟凡江, 和广庆等. 核用传热管表面划伤致应力腐蚀失效问题及研究进展 [J]. 腐蚀与防护, 2020, 41(09): 1
4	Staehle R W, Gorman J A. Quantitative assessment of submodes of stress corrosion cracking on the secondary side of steam generator tubing in pressurized water reactors: Part 1 [J]. Corrosion, 2003, 59(11): 931
5	Meng F, Wang J, Han E-H, et al. Effects of scratching on corrosion and stress corrosion cracking of Alloy 690TT at 58 degrees C and 330 degrees C [J]. Corros. Sci., 2009, 51(11): 2761
6	Meng F, Han E-H, Wang J, et al. Localized corrosion behavior of scratches on nickel-base alloy 690TT [J]. Electrochim. Acta, 2011, 56(4): 1781
7	Meng F J, Wang J Q, Han E-H, et al. Microstructure near scratch on alloy 690TT and stress corrosion induced by scratching [J]. Acta. Metall. Sin, 2011, 47(7): 839
	孟凡江, 王俭秋, 韩恩厚等. 690TT合金划痕显微组织及划伤诱发的应力腐蚀 [J]. 金属学报, 2011, 47(7): 839
8	Muransky J S, Shatford J G, Peterson C E, et al. Oconee nuclear power station main steam line break analysis for steam generator tube stress evaluation [J]. Nucl. Technol., 2017, 148(1): 48
9	Arioka K, Yamada T, Miyamoto T, et al. Dependence of stress corrosion cracking of alloy 690 on temperature, cold work, and carbide precipitation—role of diffusion of vacancies at crack tips [J]. Corrosion, 2011, 67(3): 1
10	Hou J, Peng Q J, Lu Z P, et al. Effects of cold working degrees on grain boundary characters and strain concentration at grain boundaries in Alloy 600 [J]. Corros. Sci., 2011, 53(3): 1137
11	Andresen P L, Morra M M, Ahluwalia K. SCC of Alloy 690 and its Weld Metals; proceedings of the, Cham, F, 2011 [C]. Springer International Publishing.
12	Ghosh D, Subhash G, Radhakrishnan R, et al. Scratch-induced microplasticity and microcracking in zirconium diboride-silicon carbide composite [J]. Acta Mater., 2008, 56(13): 3011
13	Hadal R S, Misra R D K. Scratch deformation behavior of thermoplastic materials with significant differences in ductility [J]. Mater. Sci. Eng., A, 2005, 398(1-2): 252
14	Kuang W, Was G S, Miller C, et al. The effect of cold rolling on grain boundary structure and stress corrosion cracking susceptibility of twins in alloy 690 in simulated PWR primary water environment [J]. Corros. Sci., 2018, 130: 126
15	Wang J, Huang F, Han E-H, et al. Microscopic residual stresses beneath a scratch and their effects on scratch-related crack initiation of thermally treated UNS N06690 in high-temperature pressurized water [J]. Corrosion, 2013, 69(9): 893
16	Alexandreanu B. Grain boundary deformation-induced integranular stress corrosion cracking of nickel-chromium(16)-iron(9) in 360 degrees Celsius water [D]. State of Michigan: University of Michigan, 2002
17	West E A, Was G S. IGSCC of grain boundary engineered 316L and 690 in supercritical water [J]. J. Nucl. Mater., 2009, 392(2): 264

[1]	MAO Jianjun, FU Tong, PAN Hucheng, TENG Changqing, ZHANG Wei, XIE Dongsheng, WU Lu. Kr Ions Irradiation Damage Behavior of AlNbMoZrB Refractory High-entropy Alloy[J]. 材料研究学报, 2023, 37(9): 641-648.
[2]	SONG Lifang, YAN Jiahao, ZHANG Diankang, XUE Cheng, XIA Huiyun, NIU Yanhui. Carbon Dioxide Adsorption Capacity of Alkali-metal Cation Dopped MIL125[J]. 材料研究学报, 2023, 37(9): 649-654.
[3]	ZHAO Zhengxiang, LIAO Luhai, XU Fanghong, ZHANG Wei, LI Jingyuan. Hot Deformation Behavior and Microstructue Evolution of Super Austenitic Stainless Steel 24Cr-22Ni-7Mo-0.4N[J]. 材料研究学报, 2023, 37(9): 655-667.
[4]	SHAO Hongmei, CUI Yong, XU Wendi, ZHANG Wei, SHEN Xiaoyi, ZHAI Yuchun. Template-free Hydrothermal Preparation and Adsorption Capacity of Hollow Spherical AlOOH[J]. 材料研究学报, 2023, 37(9): 675-684.
[5]	XING Dingqin, TU Jian, LUO Sen, ZHOU Zhiming. Effect of Different C Contents on Microstructure and Properties of VCoNi Medium-entropy Alloys[J]. 材料研究学报, 2023, 37(9): 685-696.
[6]	OUYANG Kangxin, ZHOU Da, YANG Yufan, ZHANG Lei. Microstructure and Tensile Properties of Mg-Y-Er-Ni Alloy with Long Period Stacking Ordered Phases[J]. 材料研究学报, 2023, 37(9): 697-705.
[7]	PAN Xinyuan, JIANG Jin, REN Yunfei, LIU Li, LI Jinghui, ZHANG Mingya. Microstructure and Property of Ti / Steel Composite Pipe Prepared by Hot Extrusion[J]. 材料研究学报, 2023, 37(9): 713-720.
[8]	XU Lijun, ZHENG Ce, FENG Xiaohui, HUANG Qiuyan, LI Yingju, YANG Yuansheng. Effects of Directional Recrystallization on Microstructure and Superelastic Property of Hot-rolled Cu71Al18Mn11 Alloy[J]. 材料研究学报, 2023, 37(8): 571-580.
[9]	XIONG Shiqi, LIU Enze, TAN Zheng, NING Likui, TONG Jian, ZHENG Zhi, LI Haiying. Effect of Solution Heat Treatment on Microstructure of DZ125L Superalloy with Low Segregation[J]. 材料研究学报, 2023, 37(8): 603-613.
[10]	LIU Jihao, CHI Hongxiao, WU Huibin, MA Dangshen, ZHOU Jian, XU Huixia. Heat Treatment Related Microstructure Evolution and Low Hardness Issue of Spray Forming M3 High Speed Steel[J]. 材料研究学报, 2023, 37(8): 625-632.
[11]	YOU Baodong, ZHU Mingwei, YANG Pengju, HE Jie. Research Progress in Preparation of Porous Metal Materials by Alloy Phase Separation[J]. 材料研究学报, 2023, 37(8): 561-570.
[12]	REN Fuyan, OUYANG Erming. Photocatalytic Degradation of Tetracycline Hydrochloride by g-C₃N₄ Modified Bi₂O₃[J]. 材料研究学报, 2023, 37(8): 633-640.
[13]	WANG Hao, CUI Junjun, ZHAO Mingjiu. Recrystallization and Grain Growth Behavior for Strip and Foil of Ni-based Superalloy GH3536[J]. 材料研究学报, 2023, 37(7): 535-542.
[14]	LIU Mingzhu, FAN Rao, ZHANG Xiaoyu, MA Zeyuan, LIANG Chengyang, CAO Ying, GENG Shitong, LI Ling. Effect of Photoanode Film Thickness of SnO₂ as Scattering Layer on the Photovoltaic Performance of Quantum Dot Dye-sensitized Solar Cells[J]. 材料研究学报, 2023, 37(7): 554-560.
[15]	QIN Heyong, LI Zhentuan, ZHAO Guangpu, ZHANG Wenyun, ZHANG Xiaomin. Effect of Solution Temperature on Mechanical Properties and γ' Phase of GH4742 Superalloy[J]. 材料研究学报, 2023, 37(7): 502-510.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed