S690 high strength steel was widely used in offshore platforms because of its comprehensive mechanical properties. Corrosion fatigue fracture was easily formed at the offshore platforms, while corrosion fatigue crack growth behavior was significantly affected by seawater corrosion, cyclic loading and constraint effect of the structure. Therefore, the fatigue crack growth rate tests in air and seawater, combining with fracture morphologies analysis, were conducted to investigate the constraint effects of the corrosion fatigue crack growth behavior in S690 high strength steel. The results indicated that the fatigue crack growth rate in seawater was dramatically accelerated by anodic dissolution and hydrogen induced cracking. Meanwhile, the constraint effect on the corrosion fatigue crack growth rate increased with the crack growth. The corrosion fatigue crack growth rate was closely related to the constraint increment before and after the crack growth and the constraint of the structure.
HAN Yongdian
,
LI Zhan
,
XU Lianyong
,
JING Hongyang
,
ZHAO Lei
. Constraint effect of corrosion fatigue crack growth behavior in S690 high strength steel[J]. Transactions of The China Welding Institution, 2018
, 39(12)
: 13
-18
.
DOI: 10.12073/j.hjxb.2018390290
[1] 郝文魁, 刘智勇, 王显宗, 等. 海洋平台用高强钢强度及其耐蚀性现状及发展趋势[J]. 装备环境工程, 2014, 11(2):50-58 Hao Wenkui, Liu Zhiyong, Wang Xianzong, et al. Current situation and prospect of studies on strength and corrosion resistance of high strength steel for ocean platform[J]. Equipment Enviromental Engineering, 2014, 11(2):50-58
[2] Jesus A M P D, Rui M, Fontoura B F C, et al. A comparison of the fatigue behavior between S355 and S690 steel grades[J]. Journal of Constructional Steel Research, 2012(79):140-150.
[3] 王恒, 苏波泳, 花国然, 等. 海洋工程装备材料E690高强钢腐蚀疲劳裂纹扩展实验研究[J]. 热加工工艺, 2016(16):48-51 Wang Heng, Su Boyong, Hua Guoran, et al. Experiment research on corrosion fatigue crack propagation of marine engineering equipment material E690 high strength steel[J]. Hot Working Technology, 2016(16):48-51
[4] Gupta M, Alderliesten R C, Benedictus R. A review of T -stress and its effects in fracture mechanics[J]. Engineering Fracture Mechanics, 2015, 134:218-241.
[5] Varfolomeev I, Luke M, Burdack M. Effect of specimen geometry on fatigue crack growth rates for the railway axle material EA4T[J]. Engineering Fracture Mechanics, 2011, 78(5):742-753.
[6] Yang J, Wang G Z, Xuan F Z, et al. An experimental investigation of in-plane constraint effect on local fracture resistance of a dissimilar metal welded joint[J]. Materials & Design, 2014, 53(1):611-619.
[7] Yang J, Wang G Z, Xuan F Z, et al. Out-of-plane constraint effect on local fracture resistance of a dissimilar metal welded joint[J]. Materials & Design, 2014, 55(1):542-550.
[8] Chen T, Nutter J, Hawk J, et al. Corrosion fatigue crack growth behavior of oil-grade nickel-base alloy 718. Part 1:Effect of corrosive environment[J]. Corrosion Science, 2014, 89:146-153.
[9] Ma H, Liu Z, Du C, et al. Effect of cathodic potentials on the SCC behavior of E690 steel in simulated seawater[J]. Materials Science & Engineering A, 2015, 642:22-31.
[10] Donahue J R, Burns J T. Effect of chloride concentration on the corrosion-fatigue crack behavior of an age-hardenable martensitic stainless steel[J]. International Journal of Fatigue, 2016, 91:79-99.
[11] Turnbull A. Modeling of the chemistry and electrochemistry in cracksA review[J]. Electroanalysis, 2001, 57(2):4.
[12] Ma H, Liu Z, Du C, et al. Comparative study of the SCC behavior of E690 steel and simulated HAZ microstructures in a SO2-polluted marine atmosphere[J]. Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2015, 650:93-101.
[13] Chowdhury M S, Song C, Gao W. Highly accurate solutions and Padé approximants of the stress intensity factors and T-stress for standard specimens[J]. Engineering Fracture Mechanics, 2015, 144:46-67.
[14] Kujawski D. Environmental crack growth behavior affected by thickness/geometry constraint[J]. Metallurgical and Materials Transactions A, 2013, 44(3):1340-1352.
[15] Gu B, Luo J, Mao X. Hydrogen-facilitated anodic dissolution-type stress corrosion cracking of pipeline steels in near-beutral pH solution[J]. Corrosion -Houston Tx-, 1999, 55(1):96-108.
