ELECTROCHEMICAL DEPOSITION OF CRACK – FREE COATINGS ON BASE OF NI – W BINARY ALLOY

Изучены основные особенности электрохимического осаждения покрытий на основе сплава Ni – W в импульсном токовом режиме с использованием пирофосфатного электролита. Использовались два электролита с рН 8,7 и 9,5. Осаждение осуществлялось с плотностью тока, изменяющейся в диапазоне 0,01 – 0,1 А/см², а скважность (относительная длительность импульса) изменялась в пределах 20 – 100%. Морфологию поверхности, элементный и фазовый состав покрытий изучали с помощью SEM, EDS и XRD. Были определены условия эксперимента, позволяющие достичь максимального выхода по току и максимального содержания W в покрытиях. Установлено, что импульсный токовый режим позволяет получать высококачественные покрытия без трещин толщиной более 6 мкм.

1. Yamasaki T, «High – strength nanocrystalline Ni – W alloys produced by electrodeposition.» Mater. Phys. Mesh. 1 127 – 132 (2000).

2. Eliaz N, Sridhar TM, Gileadi E, «Synthesis and characterization of nickel tungsten alloys by electrodeposition.» Electrochim. Acta 50 2893 – 2904 (2005).

3. Sriraman KR, Ganesh Sundara Raman S, Seshadri SK, «Corrosion behavior of electrodeposited nanocrystalline Ni – W and Ni – Fe – W alloys.» Mater. Sci. Eng. A 460 39 – 45 (2007).

4. Jones A, Hamann J, Lund A, Schuh C, «Nanocrystalline Ni – W alloy coating for engineering applications.» Plat. Surf. Finish. 97 52 – 60 (2010).

5. Wasekar NP, Sundararajan G, «Sliding wear behavior of electrodeposited Ni – W alloy and hard chrome coatings» Wear 342 – 343 340 – 348 (2015).

6. Brooman E, «Corrosion performance of environmentally acceptable alternatives to cadmium and chromium coatings: Chromium – Part II» Met. Finish. 98 39 – 45 (2000).

7. Kirihara S, Umeda Y, Tashiro K, Honma H, Takai O, «Development of Ni – W alloy plating as a substitution of hard chromium plating» Trans. Mater. Res. Soc. Jpn. 41 35 – 39 (2016).

8. He F – j, Wang M, Lu X, «Properties of electrodeposited amorphous Fe – Ni – W alloy deposits.» Trans. Nonferrous Metals Soc. China 16 1289 – 1294 (2006).

9. Allahyarzadeh MH, Aliofkhazraei M, Rezvanian AR, Torabinejad V, Sabour Rouhaghdam AR, «Ni – W electrodeposited coatings: Characterization, properties and applications.» Surf. Coat. Technol. 307 978 – 1010 (2016).

10. Lee HB, «Synergy between corrosion and wear of electrodeposited Ni – W coating» Tribol. Lett. 50 407 – 419 (2013).

11. Udompanit N, Wangyao P, Henpraserttae S, Boonyongmaneerat Y, «Wear response of composition – modulated multilayer Ni – W coatings» Adv. Mater. Res. 1025 – 1026 302 – 309 (2014).

12. Amadeh A, Harsij sani M, Moradi H, «Wear behavior of carbon steel electrodeposited by nanocrystalline Ni – W coatings.» Int. J. ISSI 6 14 – 19 (2009).

13. Hosseini M, Abdolmaleki M, Ebrahimzadesh H, Seyed Sadjadi S, «Effect of 2 – butyne – 1, 4 – diol on the nanostructure and corrosion resistance properties of electrodeposited Ni – W – B coatings» Int. J. Electrochem. Sci. 6 1189 – 1205 (2011).

14. Obradovic M, Stevanovic J, Despic A, Stevanoyic R, Stoch J, «Characterization and corrosion properties of electrodeposited Ni – W alloys» J. Serb. Chem. Soc. 66 899 – 912 (2001).

15. Chianpairot A, Lothongkum G, Schuh CA, Boonyongmaneerat Y, «Corrosion of nanocrystalline Ni – W alloys in alkaline and acidic 3.5 wt.% NaCl solutions» Corros. Sci. 53 1066 – 1071 (2011).

16. Alimadadi H, Ahmadi M, Aliofkhazraei M, Younesi SR, «Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni – W alloy» Mater. Des. 30 1356 – 1361 (2009).

17. Yang Y, Zhang Y, Zhang Y, Yan B, Mo F, «Corrosion properties of ultrasonic electrodeposited nanocrystalline and amorphous patterned Ni – W alloy coatings» Mod. Phys. Lett. B 27 1341007 – 1 – 1341007 – 7 (2013).

18. [18] Sassi W, Dhouibi L, Berçot , Rezrazi M, Triki E, «Effect of pyridine on the electro – crystallization and corrosion behavior of Ni – W alloy coated from citrate – ammonia media» Appl. Surf. Sci. 263 373 – 381 (2012).

19. Yang FZ, Guo YF, Huang L, Xu SK, Zhou SM, «Electrodeposition, structure and corrosion resistance of nanocrystalline Ni – W alloy» Chin. J. Chem. 22 228 – 231 (2004).

20. Metikoš – Huković M, Grubač Z, Radić N, Tonejc A, «Sputter deposited nanocrystalline Ni and Ni – W films as catalysts for hydrogen evolution» J. Mol. Catal. A Chem. 249 172 – 180 (2006).

21. Hristova E, Mitov M, Rashkov R, Arnaudova M, Popov A, «Sulphide oxidation on electrodeposited Ni – Mo – W catalysts» Bulg. Chem. Commun. 40 291 – 294 (2008).

22. Kawashima A, Akiyama E, Habazaki H, Hashimoto K, «Characterization of sputter deposited Ni – Mo and Ni – W alloy electrocatalysts for hydrogen evolution in alkaline solution» Mater. Sci. Eng. A 226 905 – 909 (1997).

23. [23] Do TK, Lund A, «A reliability study of a new nanocrystalline nickel alloy barrier layer for electrical contacts» Proc. 56th IEEE Holm Conf. on Electric Contacts, Charleston, USA, Oct. 2010, 73 – 81.

24. Mizushima I, Tang PT, Hansen HN, Somers MA, «Residual stress in Ni – W electrodeposits» Electrochim. Acta 51 6128 – 6134 (2006).

25. Wang M, Wang Z, Guo Z, «The structure evolution and stability of Ni – W films electrodeposited under super gravity field» Mater. Lett. 64 1166 – 1168 (2010).

26. Zemanova M, Krivosudska M, Chovancova M, Jorık V, «Pulse current electrodeposition and corrosion properties of Ni – W alloy coatings» J. Appl. Electrochem. 41 1077 – 1085 (2011).

27. Vasko AT, Electrochemistry of molybdenum and tungsten. Naukova Dumka, Kiev, 1977 (in Russian).

28. Krasikov AV, Krasikov VL, «Mechanism of nickel – tungsten alloy electrodeposition from pyrophosphate electrolyte» Izvestiya SPbGTI 36 12 – 23 (2016) (in Russian).

29. Suvorov DV, Gololobov G , Tolstoguzov АB, Karabanov SМ, Tarabrin DY, Rybin NB, Stryuchkova YМ, Serpova МА, Korotchenko VА, “Electrodeposition of Ni – W gradient coatings.” J. Phys.: Conf. Ser. 857 012047 (2017).

30. Zhu L, Younes O, Ashkenasy N, Shacham – Diamand Y, Gileadi E, «STM/AFM studies of the evolution of morphology of electroplated Ni/W alloys» Appl. Surf. Sci. 200 1 – 14 (2002).

31. N.P. Lyakishev, Diagrams of the state of double metal systems, Mashinostroenie, Moscow, 2001, p. 872 (in Russian).