LOW CYCLE FATIGUE FRACTURE FOR 316Ti STAINLESS STEEL IN HIGH TEMPERATURE AND PRESSURE WATER

J Chin Soc Corr Pro

2010, Vol. 30

Issue (2): 119-123 DOI:

Current Issue | Archive | Adv Search

LOW CYCLE FATIGUE FRACTURE FOR 316Ti STAINLESS STEEL IN HIGH TEMPERATURE AND PRESSURE WATER

XU Song; WU Xinqiang; HAN Enhou; KE Wei

State Key Laboratory for Corrosion and Protection; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016

Download:

PDF(3472KB)
Export: BibTeX | EndNote (RIS)

Abstract

Low cycle fatigue tests were performed for a type 316Ti stainless steel in high temperature and pressure water. Fatigue crack propagation, fracture behaviors and relative mechanism of environmentally assisted cracking were investigated. It was found that fatigue cracks were transgranular fracture. Cracks show tortuous behavior, and cracks were coalescence, branch deflection each other. At the high strain rate, the cracks were shorter and the number was larger, but at the low strain rate, the cracks were taller and the number was fewer. Meanwhile, striation spacing was longer at the low strain rate than that at high strain rate. Crack tip produced strongly plastic deformation and a lot of slip bands, and it was found some secondary cracks before and both sides of the crack tip. It is believed that synergism between the mechanical factors and electrochemical reactions played a key role in the process of fatigue crack propagation in high temperature water. Slip-dissolution model was proposed for explaining the related fatigue crack propagation mechanisms.

Key words: nuclear power plant low cycle fatigue high temperature and pressure water crack propagation slip-dissolution model

Received: 03 November 2009

ZTFLH:

TG172.8

Corresponding Authors: WU Xinqiang E-mail: xqwu@imr.ac.cn

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	XU Song

Cite this article:

XU Song; WU Xinqiang; HAN Enhou; KE Wei. LOW CYCLE FATIGUE FRACTURE FOR 316Ti STAINLESS STEEL IN HIGH TEMPERATURE AND PRESSURE WATER. J Chin Soc Corr Pro, 2010, 30(2): 119-123.

URL:

https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2010/V30/I2/119

[1] Scott P M. A review of environment-sensitive fractures in water reactor materials [J]. Corros. Sci, 1985, 25(8/9):583-606
[2]Xu S, Wu X Q, Han E H, et al. A review of corrosion fatigue of power plant steels in the high temperature and pressure water [J].Corros. Sci. Prot. Technol., 2007, 19(5): 345-349
[3] 徐松, 吴欣强, 韩恩厚等. 核电用钢的高温高压水腐蚀疲劳研究进展 [J]. 腐蚀科学与防护技术, 2007, 19(5):345-349 浏览
[4] Hamaguchi D, Dai Y. Microstructural study of EC316LN and its welds irradiated in SINQ target-3 [J]. J. Nucl. Mater, 2005, 343:262-266
[5] Yu J, Gelles D S, Garner F A. The performance of Chinese 316L and 316Ti stainless steel irradiated at 300, 400, 500 and 600℃ in HFIR JP-23 test capsule [J]. J. Nucl. Mater, 2002, 307-311:357-361
[6] Pardo A, Merino M C, Coy A E. Influence of Ti, C and N concentration on the intergranular corrosion behaviour of AISI 316Ti and 321 stainless steels [J]. Acta Mater, 2007, 55:2239-2251
[7]Hänninen H, Cullen W, Kemppainen M. Effects of MnS inclusion dissolution on environmentally assisted cracking in low-alloy and carbon steels [J]. Corrosion, 1990, 46(7): 563-573
[8] Ford F P. Quantitative prediction of environmentally assisted cracking [J]. Corrosion, 1996, 52(5):375-388
[9]Xu S, Wu X. Q, Han E H, et al. Crack initiation mechanisms for low cycle fatigue of type 316Ti stainless steel in high temperature [J]. Mater. Sci. Eng., 2008, A 490: 16-25
[10] Symniotis E. Dissolution mechanism of duplex stainless steels in the active-to-passive transition range and role of microstructure [J]. Corrosion, 1995, 51(8):571-580

[1]	AI Fangfang, CHEN Yiqing, ZHONG Bin, LI Lin, GAO Peng, SHAN Hongyu, SU Xiandong. Stress Corrosion Cracking Behavior of T95 Oil Well Pipe Steel in Sour Environment[J]. 中国腐蚀与防护学报, 2020, 40(5): 469-473.
[2]	Zhaodeng LI,Zhendong CUI,Xiangyu HOU,Lili GAO,Weizhen WANG,Jianhua YIN. Corrosion Property of Nuclear Grade 316LN Stainless Steel Weld Joint in High Temperature and High Pressure Water[J]. 中国腐蚀与防护学报, 2019, 39(2): 106-113.
[3]	TANG Zhanmei, HU Shilin, ZHANG Pingzhu. STRESS CORROSION CRACKING OF 316Ti IN 300℃ HIGH TEMPERATURE WATER CONTAINING CHLORIDE IONS[J]. 中国腐蚀与防护学报, 2012, 32(4): 291-295.
[4]	ZHONG Manying. EFFECT OF HYDROGEN ON MECHANICAL PROPERTIES FOR 2(1/4)Cr-1Mo STEEL[J]. 中国腐蚀与防护学报, 2011, 31(3): 236-239.
[5]	Mingxing Li. CRACK PROPAGATION QUANTITATIVE MODELS OF X70 PIPELINE STEEL IN THE SYNTHETIC SOIL SOLUTION[J]. 中国腐蚀与防护学报, 2004, 24(3): 163-167 .
[6]	NIU Lin LIN Hai-chao CAO Chu-nan SONG Guang-ling SHI Zhi-ming(The Institute of Corrosion and Protection of Metals; Chinese Academy of Sciences; State Key Laboratory of Corrosion and Protection; Shenyang 110015). EVALUATION OF DETERMINATION METHODS OF CRACK PROPAGATION RATE IN ENVIRONMENTALLY ASSISTED CRACKING[J]. 中国腐蚀与防护学报, 1998, 18(3): 214-220.
[7]	WANG Rong(Xi'an Petroleum Institute; Xi'an 710061). A FRACTURE MODEL FOR CORROSION FATIGUE CRACK PROPAGATION PROCESS[J]. 中国腐蚀与防护学报, 1998, 18(2): 87-94.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed