SERT ve YUMUŞAK KAPLAMALAR

Year 2014, Volume: 4 Issue: 2, 32 - 41, 03.02.2016

Ferhat Bülbül

Abstract

Geleneksel olarak, mekanik anlamda iyi tribolojik özelliklere ve yüksek sertliğe (>10GPa≈1000HV) sahip yapılara sert kaplama denir.  En yaygın kullanılan sert kaplamalar, oksitler, karbürler, nitrürler, boritler, sermetler ve elmastır. Yumuşak kaplamalar ise, katı yağlama amacıyla kullanılmak üzere, bir bağlayıcı malzeme içerisinde tozun karıştırılması suretiyle elde edilen ya da elektrokimyasal kaplama ve çeşitli fiziksel buhar kaplama işlemleri ile üretilen düşük sertliğe (<10GPa≈1000HV) sahip kaplamalardır. Sert ve yumuşak kaplamalar, uygulama şartlara bağlı olarak, katı yüzeylerde dayanımı artırmanın yanısıra, tribolojik, korozyon, elektriksel, ısıl vd. ve estetik özellikler bakımından da faydalar sağlamaktadır.

Keywords

Sert kaplama, yumuşak kaplama, sertlik, dayanım

HARD and SOFT COATINGS

Abstract

Traditionally, hard coating is called to the structures having mechanically good tribological properties and high hardness (>10GPa≈1000HV). The most common hard coatings are oxides, carbides, nitrides, cermets, borides and diamond. Soft coatings are low-hardness coatings (<10GPa≈1000HV) which are obtained by powder mixing in a binder material produced or produced by using electrochemical and various physical vapor deposition processes, with the aim of using as solid lubricant. Hard and soft coatings also provide many benefits in terms of tribological, corrosion, electrical, thermal etc. and aesthetic properties, as well as they increase strength on solid surfaces depending on application conditions.

Keywords

Hard coating, soft coating, hardness, strength

References

• Bunshah R.F., (2001), Handbook of hard coatings, Deposition Technologies,
• Properties and Applications, University of California, Los Angeles Los Angeles, California, Noyes publications. Donnet C., Erdemir A., (2004), Tribology Letters, 17, p. 389-397.
• Panjan P, Čekada M., Ljubljana, (2005), p. 79-111.
• Guojian J., Jiayue X., (2009), Journal of Nuclear Materials, 393, p. 481-479.
• Zeng B., Feng Z., (2009), Ceramics International, 35(1), p. 1877-1882.
• Hedenqvist P, (1997), Surface and Coatings Technology, 97, 212-217
• Paskvale S., (2007), Properties of PVD hard coatings, p.6, University of Ljubljana.
• Bhushan S., Gupta K.B., (1991), Handbook of Tribology: materials, coatings and surface treatments, USA, 1140.
• Budinski K.G., (1988), Surface Engineering for Wear Resistance, New Jersey.
• Baba K., Hatada R., (2002), Surface and Coatings Technology, 158-159, p. 373
• Baba K., Hatada R., (2003), Surface and Coatings Technology, 169-170, p. 287
• Michler T., Grischke M., Traus I., Bewilogua K., Dimigen H., (1998), Diamond and Related Materials, 7, p. 459-462.
• Wang D-Y., Chang C-L., Ho, W-Y., (1999), Thin Solid Films, 355-356, p. 246
• Zambrano G., Riascos H., Prieto P., Restrepo E., Devia A., Rincon C., (2003),
• Surface and Coatings Technology, 172, p. 144-149. Bewilogua K., Wittorf R., Thomsen H., Weber M., 2004), Thin Solid Films, 447- , p. 142-147.
• Logothetidis S., Gioti M., Lioutas CH., (1998), Carbon, 36, 5-6, p. 539-543.
• Kunc F., Musil J., Mayrhofer P.H., Mitterer C., (2003), Surface and Coatings Technology, 174-175, p. 744-753.
• Wang D-Y., Chang Y-Y., Chang C-L., Huang Y-W., (2005), Surface and Coatings Technology, 200, p. 2175-2180.
• Rincon C., Zambrano G., Carvajal A., Prieto P., Galindo H., Martınez E., Lousa A., Esteve J., (2001), Surface and Coatings Technology, 148, p. 277-283.
• Zhang S., Fu, Y., Du, H., Zeng, X.T., Liu, Y.C., (2002), Surface and Coatings Technology, 162, p. 42-48.
• Chang Y., Wang D., Chang C., Wu W., (2004), Surface and Coatings Technology, , p. 349-355.
• Steinmann M., Muller A., Meerkamm H., (2004), Tribology International, 37, p. 885.
• Gilmore R., Baker M.A., Gibson P.N., Gissler W., (1998), Surface and Coatings Technology, 105, p. 45-50.
• Mayrhofer P.H., Willmann H., Mitterer C., (2003), Thin Solid Films, 440, p. 174
• Garcia-Luis A., Brizuela M., Onate J.I., Sanchez-Lopez J.C., Martinez-Martinez D., Lopez-Cartez C., Fernandez A., (2005), Surface and Coatings Technology, 200,1-4, p. 734-738.
• Prakash B., Richter E., Pattyn H., Celis J.P., (2003), Surface and Coatings Technology, 173, p. 150-160.
• Ma F., Li G., Li H., Mab H., Cai X., (2002), Materials Letters, 57, p. 82-86.
• Donnet C., Fontaine J., Mogne T.L., Belin M., He´au C., Terrat J.P., Vaux F., Pont G., (1999), Surface and Coatings Technology, 120-121, p. 548-554.
• Miyoshi K., (1998), Solid Lubricant Fundamentals and Applications:
• Characterization of Solid Surfaces, NASA/TM, 80, Cleveland, Ohio.