You are here

Home » Content

Plazma elektrolitik oksitleme yöntemiyle AA7075 alüminyum alaşımı üzerine kaplanan seramik kaplamaların yapısal ve aşınma davranışı

Structural and wear behavior of coatings formed on AA7075 aluminum alloy by plasma electrolytic oxidation

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 2017
DOI: 
10.5505/pajes.2016.24434

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this study, ceramic coatings were deposited on 7075 Al alloy using a plasma electrolytic oxidation (PEO) technique. Effects of current density and electrolyte content on microstructure, thickness, surface roughness and wear behavior of PEO coatings were studied. The microstructure and phase composition of the coatings were investigated by SEM and XRD analyses. Dry sliding wear tests, micro hardness and surface roughness measurements were also performed. It was found that the thickness, microhardness, surface roughness and wear resistance of the coatings increased with an increase of current density during plasma electrolytic oxidation.
Bookmark/Search this post with
Abstract (Original Language): 
Bu çalışmada 7075 alüminyum alaşımı üzerinde, plazma elektrolitik oksitleme (PEO) işlemi ile seramik kaplamalar oluşturulup, akım yoğunluğunun ve elektrolit içeriğinin; kaplama yapısına, kalınlığına, yüzey pürüzlülüğüne ve aşınma davranışına etkileri araştırılmıştır. Kaplamaların mikroyapısı ve faz analizinde SEM ve XRD yöntemleri kullanılmış, kuru sürtünme şartlarında aşınma testleri, mikrosertlik ve yüzey pürüzlülüğü ölçümleri gerçekleştirilmiştir. Sonuç olarak, PEO işleminde uygulanan akım yoğunluğunun arttırılmasıyla, kaplama kalınlığının, mikrosertlik değerlerinin, yüzey pürüzlülüğünün ve aşınma direncinin arttığı görülmüştür.
FULL TEXT (PDF): 
PDF icon arastirmax-plazma-elektrolitik-oksitleme-yontemiyle-aa7075-aluminyum-alasimi-uzerine-kaplanan-seramik-kaplamalarin-yapisal-asinma-davranisi.pdf
  • 4
405
410
  • Turkish

REFERENCES

References: 

AL, Nie X, Leyland
Yerokhin A, Matthews A.
"Characterisatio
n of oxide films produced by plasma electrolytic oxidation of a Ti-6Al-4V alloy". Surface & Coatings Technology, 130(2-3), 195-206, 2000. [2] Yerokhin AL, Nie X, Leyland A, Matthews A, Dowey SJ. "Plasma electrolysis for surface engineering". Surface & Coatings Technology, 122(2-3), 73-93, 1999. [3] Tekin KC, Çakmak E, Malayoğlu U. "Plazma elektrolitik oksitlenme yöntemiyle hafif metallerin kaplanması". Mühendis ve Makina, 49(582), 3-9, 2008. [4] Venugopal A, Srinath J, Rama Krishna L, Ramesh Narayanan P, Sharma SC, Venkitakrishnan PV. "Corrosion and nanomechanical behaviors of plasma electrolytic oxidation coated AA7020-T6 aluminum alloy". Materials Science & Engineering A, 660, 39-46, 2016. [5] Yerokhin AL, Lyubimov VV, Ashitkov RV. "Phase formation in ceramic coatings during plasma electrolytic oxidation of aluminium alloys". Ceramics International,
24(1), 1-6, 1998.
[6] Jiang BL, Wang YM. Plasma Electrolytic Oxidation Treatment of Aluminium and Titanium Alloys. Editor: Dong H. Surface Engineering of Light Alloys, 110-154. Cambridge, UK, Woodhead Publishing Limited, 2010.
[7] Dunleavy CS, Golosnoy IO, Curran JA, Clyne TW. "Characterisation of discharge events during plasma electrolytic oxidation". Surface & Coatings Technology, 203(22), 3410-3419, 2009.
[8] Hussein RO, Nie X, Northwood DO. "An investigation of ceramic coating growth mechanisms in plasma electrolytic oxidation (PEO) processing". Electrochimica Acta, 112, 111-119, 2013.
[9] Sonuvar E. Petrokimya Tesislerinde
Kullanıla
n Tuz Yıkama Santrifüj Parçalarının Aşınma Dayanımının Geliştirilmesi. Yüksek Lisans Tezi, Ege Üniversitesi, İzmir,
Türkiye, 2014.
0
409
Pamukkale Univ Muh Bilim Derg, 23(4),405-410,2017
S. Karaoğlu, E. Sonuvar
[10] Xiang N, Song R, Zhuang J, Song R, Lu X, Su X. "Effects of current density on microstructure and properties of plasma electrolytic oxidation ceramic coatings formed on 6063 aluminum alloy". Transactions of Nonferrous Metals Society of China, 26(3), 806-813, 2016.
[11] Fattah-Alhosseini A, Vakili-Azghandi M, Keshavarz MK. "Influence of concentrations of KOH and Na2SiO3 electrolytes on the electrochemical behavior of ceramic coatings on 6061 Al alloy processed by plasma electrolytic oxidation". Acta Metallurgica Sinica (English Letters), 29(3), 274-281, 2016.
[12] Xue W, Deng, Z, Lai Y, Chen R. "Analysis of phase distribution for ceramic coatings formed by microarc oxidation on aluminum alloy". Journal of the American Ceramic Society, 81(5), 1365-1368, 1998.
410
[13] Shi Gang X, Li-Xin S. "Composition and thermal properties of the coating containing mullite and alumina". Materials Chemistry and Physics, 97(1), 132-136, 2006.
[14] Hsiao H, Tsai W. "Characterization of anodic films formed on the AZ91D magnesium alloy". Surface & Coatings Technology, 190(2-3), 299-308, 2005.
[15] Sundararajan G, Rama KL. "Mechanisms underlying the formation of thick alumina coatings through the MAO coating technology". Surface & Coatings Technology,
167(2-3), 269-277, 2003
[16] Anita V, Saito N, Takai O. "Microarc plasma treatment of titanium and aluminum surfaces in electrolytes". Thin Solid Films, 506-507, 364-368, 2006.

Thank you for copying data from http://www.arastirmax.com