Acta Metall Sin  1993, Vol. 29 Issue (6): 77-81    DOI:

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AN APPLICATION OF SPI TECHNIQUE FOR STUDING STRAIN DISTRIBUTION AT CF CRACK TIP

ZHOU Xiangyang;LI Jin;LIU Guanglei;KE Wei Corrosion Science Laboratory; Academia Sinica; Institute of Corrosion and Protection of Metals; Academic Sinica; ShenyangWEI Xuejun;Institute of Corrosion and Protection of Metals Academia Sinica Shenyang110015

ZHOU Xiangyang;LI Jin;LIU Guanglei;KE Wei Corrosion Science Laboratory; Academia Sinica; Institute of Corrosion and Protection of Metals; Academic Sinica; ShenyangWEI Xuejun;Institute of Corrosion and Protection of Metals Academia Sinica Shenyang110015. AN APPLICATION OF SPI TECHNIQUE FOR STUDING STRAIN DISTRIBUTION AT CF CRACK TIP. Acta Metall Sin, 1993, 29(6): 77-81.

Abstract References Related Articles Recommended Metrics Download:  PDF(384KB)  Export:  BibTeX | EndNote (RIS)       Abstract  A computerized digital speckle-interferometry(SPI) system has been set up todetermine the in-plane distribution of displacement and strain at crack tip of CF specimens.The effect of corrosion factors on plastic deformation at crack tip in CF process has been ex-amined by comparing the near-tip strain fields of steel A537 before and after hydrogen char-ging, and of pure Cu before and after applying an anodic current in 3.5% NaCl. The resultsshowed that the clasic finite element mathematical models were not suitable to describe thenear-tip deforamtion under the experimental conditions. Hydrogen charging made the cracktip plasticity decreased for steel A537 and the anodic dissolution enhanced the near-tipdeformation of pure Cu specimen. Key words:  Speckle-interferometry      corrosion fatigue      crack tip deformation      Received:  18 June 1993      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1993/V29/I6/77 1 Groh G. Proc Symposium on the Engineering Uses of Holography, University of Strathelyde, University of Cambridge Press, 1970 2 Burch J M, Tokarski J M. Opt Acta. 1968: 15: 101 3 Hopkins H H. Jpn J Appl Phys, 1965; 4 (Suppl.Ⅰ): 4 Hirth J P. Metall Trans. 1980: 11A: 861 5 Duquette D, Uhlng H H. ASM Trans Q, 1968; 61: 449 Duquette D, Uhlig H H. ASM Trans Q, 1969: 62: 839 6 Duquette D. Corrosion, 1990; 26: 434 7 Jones D. Metall Trans, 1985; 16A: 1133 [1] TAN Jibo, WANG Xiang, WU Xinqiang, HAN En-Hou. Corrosion Fatigue Behavior of 316LN Stainless Steel Hollow Specimen in High-Temperature Pressurized Water[J]. 金属学报, 2021, 57(3): 309-316. [2] WU Xinqiang, TAN Jibo, XU Song, HAN En-Hou, KE Wei. 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