بررسی رفتار خوردگی لایه‌های نانوبلوری نیکل ایجاد شده به روش عملیات مکانیکی تدریجی سطحی (SMAT) در محلول‌های قلیایی

نوع مقاله: مقاله پژوهشی

نویسندگان

1 مرکز تحقیقات مواد پیشرفته، دانشکده مهندسی مواد، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران.

2 دانشکده فنی و مهندسی، دانشگاه شهرکرد، شهرکرد، ایران

چکیده

در این پژوهش، مقاومت به خوردگی لایه­های نانوبلوری نیکل ایجاد شده به روش عملیات مکانیکی تدریجی سطحی(SMAT) در محلول 10% هیدروکسید سدیم مورد بررسی قرار گرفت. برای مشخصه­یابی لایه­های نانوبلوری نیکل ایجاد شده از آزمون­های پراش پرتو  X (XRD)، میکروسکوپی الکترونی روبشی گسیل میدانی(FE-SEM)، میکروسکوپی نوری و آزمون زبری­سنجی استفاده شد.. الگوهای XRD نشان دادند با گذشت زمان از شدت قله­ها کاسته و قله­ها پهن­تر شدند اما بعد از 60 دقیقه شدت افزایش یافت. لایه­های نانوبلوری نیکل ایجاد شده به روش SMAT، در همه زمان­ها مقاومت به خوردگی بیشتری نسبت به نمونه بالک داشتند.

کلیدواژه‌ها


عنوان مقاله [English]

Investigation on Corrosion Behavior of Nickel Nanocrystalline layers Induced by Surface Mechanical Attrition Treatment (SMAT) in Alkaline Solutions

نویسندگان [English]

  • Nima Zaghian 1
  • Behrooz Shayegh Boroujeny 2
1 Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
2 Department of Material Engineering, Shahrekord University, Shahrekord, Iran.
چکیده [English]

In this study, the corrosion resistance of Nickel nanocrystalline layers induced by Surface Mechanical Attrition Treatment (SMAT) in 10% NaOH was investigated. Nickel nanocrystalline layers were studied by X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), Optical Microscopy and roughness test. XRD patterns showed that the peaks intensities were found to decrease due to peak broadening by increasing the treatment time. However, after 60 min, the intensity of the peaks was increased. Nickel nanocrystalline layers induced by SMAT showed better corrosion resistance than that of bulk Ni in all treatment times.

کلیدواژه‌ها [English]

  • Nickel nanocrystalline layers
  • Alkaline Solution
  • corrosion
  • SMAT

1. M.A. Meyers, A. Mishra, D.J. Benson, Mechanical properties of nanocrystalline materials, Progress in materials science, 51 (2006) 427-556.

2   N. Tao, X. Wu, M. Sui, J. Lu, K. Lu, Grain refinement at the nanoscale via mechanical twinning and dislocation interaction in a nickel-based alloy, Journal of materials research, 19 (2004) 1623-1629.

3.   N. Tao, H. Zhang, J. Lu, K. Lu, Development of nanostructures in metallic materials with low stacking fault energies during surface mechanical attrition treatment (SMAT), Materials Transactions, 44 (2003) 1919-1925.

4.  P. Herrasti Gonzalez, C. Ponce de Leon, F. Walsh, The corrosion behaviour of nanograined metals and alloys, Revista De Metalurgia, 48 (2012) 377-394.

5.   K. Lu, J. Lu, Nanostructured surface layer on metallic materials induced by surface mechanical attrition treatment, Materials Science and Engineering: A, 375 (2004) 38-45.

6.  N. Tao, J. Lu, K. Lu, Surface nanocrystallization by surface mechanical attrition treatment,  Materials Science Forum, Trans Tech Publ, 2008, pp. 91-108.

7.  F. Kargar, M. Laleh, T. Shahrabi, A.S. Rouhaghdam, Effect of treatment time on characterization and properties of nanocrystalline surface layer in copper induced by surface mechanical attrition treatment, Bulletin of Materials Science, 37 (2014) 1087-1094.

8.  K. Wang, N.R. Tao, G. Liu, J. Lu, K. Lu, Plastic strain-induced grain refinement at the nanometer scale in copper, Acta Materialia, 54 (2006) 5281-5291.

9.    X. Wu, N. Tao, Y. Hong, G. Liu, B. Xu, J. Lu, K. Lu, Strain-induced grain refinement of cobalt during surface mechanical attrition treatment, Acta Materialia, 53 (2005) 681-691.

10.  N.R. Tao, Z.B. Wang, W.P. Tong, M.L. Sui, J. Lu, K. Lu, An investigation of surface nanocrystallization mechanism in Fe induced by surface mechanical attrition treatment, Acta Materialia, 50 (2002) 4603-4616.

11. M. Laleh, F. Kargar, Effect of surface nanocrystallization on the microstructural and corrosion characteristics of AZ91D magnesium alloy, Journal of Alloys and Compounds, 509 (2011) 9150-9156.

12. R. Huang, Y. Han, The effect of SMAT-induced grain refinement and dislocations on the corrosion behavior of Ti–25Nb–3Mo–3Zr–2Sn alloy, Materials Science and Engineering: C, 33 (2013) 2353-2359.

13.  S. Kumar, K. Chattopadhyay, V. Singh, Effect of surface nanostructuring on corrosion behavior of Ti–6Al–4V alloy, Materials Characterization, 121 (2016) 23-30.

14.  L. Wen, Y. Wang, Y. Zhou, L. Guo, J.-H. Ouyang, Microstructure and corrosion resistance of modified 2024 Al alloy using surface mechanical attrition treatment combined with microarc oxidation process, Corrosion Science, 53 (2011) 473-480.

15. T. Balusamy, S. Kumar, T.S. Narayanan, Effect of surface nanocrystallization on the corrosion behaviour of AISI 409 stainless steel, Corrosion Science, 52 (2010) 3826-3834.

16. T. Balusamy,    T.S. Narayanan,  K. Ravichandran, I.S. Park, M.H. Lee, Influence of surface mechanical attrition treatment (SMAT) on the corrosion behaviour of AISI 304 stainless steel, Corrosion Science, 7 (2013) 332-344.

17.  T.H. De Keijser, J. Langford, E.J. Mittemeijer, A. Vogels, Use of the Voigt function in a single-line method for the analysis of X-ray diffraction line broadening, Journal of Applied Crystallography, 15 (1982) 308-314.

18. A. Nikfahm, I. Danaee, A. Ashrafi, M. Toroghinejad, Effect of grain size changes on corrosion behavior of copper produced by accumulative roll bonding process, Materials Research, 16 (2013) 1379-1386.