Effect of Dislocation on the Electrochemical Property of Austenite in Deformed 304 Stainless Steels

XIE Jinpeng; LUO Hongyun; LYU Jinlong; YE Kanglin

doi:10.7527/S1000-6893.2014.0156

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2014 , Vol. 35 >Issue 10: 2857 - 2864

DOI: https://doi.org/10.7527/S1000-6893.2014.0156

Articles

Effect of Dislocation on the Electrochemical Property of Austenite in Deformed 304 Stainless Steels

XIE Jinpeng ,
LUO Hongyun ,
LYU Jinlong ,
YE Kanglin

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Key Laboratory of Aerospace Materials and Performance, School of Materials Science and Engineering, Beihang University, Beijing 100191, China

Received date: 2014-04-21

Revised date: 2014-07-09

Online published: 2014-07-23

Supported by

National Natural Science Foundation of China (51175023)

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Abstract

AISI 304 metastable austenite stainless steel transforms to martensile easily under deformation. For focus on the effects induced by dislocation rather than transformed martensite, local electrochemical techniques were used to measure the electrochemical properties on austenite grain of AISI 304 stainless steel under tensile strains of 0%, 10%, 20%, 30% and 40%. The effects of dislocation density and configuration on electrochemical impedance spectra and dynamic potential polarization curves of strained samples were investigated. The results show that the impedance of the austenite reduced with the increase of the dislocation density especially at lower strain level. The anodic current density increased with the strain level, passed over a maximum and then fell significantly. The number of dislocation in a pile-up which was calculated from the results of Scanning Kelvin probe (SKP) played a more crucial role in the change of anodic current density than dislocations density, especially at high strain level.

Key words： local electrochemical; surface potential; dislocation pile-up; dislocation density; metastale austenite stainless steel

Cite this article

XIE Jinpeng , LUO Hongyun , LYU Jinlong , YE Kanglin . Effect of Dislocation on the Electrochemical Property of Austenite in Deformed 304 Stainless Steels[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(10) : 2857 -2864 . DOI: 10.7527/S1000-6893.2014.0156

References

[1] Wachter O, Brummer G. Experiences with austenitic steels in boiling water reactors[J]. Nuclear Engineering and Design, 1997, 168(1-3): 35-52.
[2] Peguet L, Malki B, Baroux B. Influence of cold working on the pitting corrosion resistance of stainless steels[J]. Corrosion Science, 2007, 49(4): 1933-1948.
[3] Estrin Y, TóthL S, Molinari A, et al. A dislocation-based model for all hardening stages in large strain deformation[J]. Acta Materialia, 1998, 46(15): 5509-5522.
[4] Shintani T, Murata Y. Evaluation of the dislocation density and dislocation character in cold rolled type 304 steel determined by profile analysis of X-ray diffraction[J]. Acta Materialia, 2011, 59(11): 4314-4322.
[5] Sahal M, Creus J, Sabot R, et al. The effects of dislocation patterns on the dissolution process of polycrystalline nickel[J]. Acta Materialia, 2006, 54(8): 2157-2167.
[6] Gutman E M, Solovioff G, Eliezer D. The mechanochemical behavior of type 316L stainless steel[J]. Corrosion Science, 1996, 38(7): 1141-1145.
[7] Mughrabi H, Ungar T. Dislocations in solids[M]. Amsterdam: Elsevier, 2002: 343.
[8] Olson G B, Cohen M. A mechanism for the strain-induced nucleation of martensitic transformations[J]. Journal of Less-Common Metals, 1972, 28(1): 107-118.
[9] Das A, Sivaprasad S, Ghosh M, et al. Morphologies and characteristics of deformation induced martensite during tensile deformation of 304 LN stainless steel[J]. Materials Science and Engineering: A, 2008, 486(1-2): 283-286.
[10] Das A, Tarafder S. Experimental investigation on martensitic transformation and fracture morphologies of austenitic stainless steel[J]. International Journal of Plasticity, 2009, 25(11): 2222-2247.
[11] Huanga Y H, Xuana F Z, Tua S T, et al. Texture and grain growth characteristics in a boron added interstitial free steel after severe cold rolling and annealing[J]. Materials Science and Engineering: A, 2011, 528(3): 1882-1888.
[12] Garcia C, Martin F, Tiedra P D, et al. Effects of prior cold work and sensitization heat treatment on chloride stress corrosion cracking in type 304 stainless steels[J]. Corrosion Science, 2001, 43(8): 1519-1539.
[13] Nazari A, Mohandesi J A, Tavareh S. Microhardness profile prediction of a graded steel by strain gradient plasticity theory[J]. Computational Materials Science, 2011, 50(5): 1781-1784.
[14] Gutman E M. Mechanochemistry of materials[M]. London: Cambridge International Science Publishing, 1998: 205.
[15] Grubac Z, Metikos-Hukovic M. EIS study of solid-state transformations in the passivation process of bismuth in sulfide solution[J]. Journal of Electroanalytical Chemistry, 2004, 565(1): 85-94.
[16] Qiao Y X, Zheng Y G. Electrochemical behaviour of high nitrogen stainless steel in acidic solutions[J]. Corrosion Science, 2009, 51(5): 979-986
[17] Rangel C M, Silva T M, Belo M. Semiconductor electrochemistry approach to passivity and stress corrosion cracking susceptibility of stainless steels[J]. Electrochim Acta, 2005, 50(25-26): 5076-5082.
[18] Lv J L, Luo H Y. Electrochemical investigation of passive film in pre-deformation AISI 304 stainless steels[J]. Applied Surface Science, 2012, 263: 29-37.
[19] Lee J B, Yoon S I. Effect of nitrogen alloying on the semiconducting properties of passive films and metastable pitting susceptibility of 316L and 316LN stainless steels[J]. Materials Chemistry and Physics, 2010, 122(1):194-199.
[20] Sato N. Electrochemistry at metal and semiconductor electrodes[M]. Amsterdam: Elsevier, 1998: 79-81.

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