Niobium boride coating on the surface of AISI 1010 by a duplex treatment

Year 2012, Volume: 1 Issue: 2, 199 - 204, 27.03.2016

S. Serdar Pazarlıoğlu Özkan Kon Şaduman Şen Uğur Şen -

Abstract

In this study, niobium boride layers were deposited on the surface of AISI 1010 steel by a duplex surface treatment. In the first step of duplex treatment, boronizing treatment was performed at 900°C for 2 h and then pre-boronized steels were niobized at 850, 900, 950°C for 1, 2, 3 and 4 h using thermo-reactive deposition/diffusion (TRD) method. Presence of the niobium boride phases were confirmed by Xray diffraction (XRD), scanning electron microscope (SEM) and microhardness methods. The hardness of coating layer was 2598±482. Experimental results show that the depth of the coating layers changes between 1.5 µm to 7.19 µm. The higher temperature the higher thickness of coating layer was obtained.

Keywords

Niobium boride, Thermo-reactive deposition/diffusion method, AISI 1010 steel

References

• Mayrhofer PH, Mitterer C, Hultman L and Clemens H. Microstructural design of hard coatings. Progress in Materials Science, 2006; 51: 1032 – 1114.
• Sen U. Kinetics of titanium nitride coatings deposited by thermo-reactive deposition technique. Vacuum, 2004; 75: 339 – 345.
• Sen S. A study on kinetics of CrxC-coated high-chromium steel by thermo- reactive diffusion technique. Vacuum, 2005; 79: 63 – 70.
• Aghaie-Khafri M and Fazlalipour F. Vanadium carbide coatings on die steel deposited by the thermo-reactive diffusion technique. Journal of Physics and Chemistry of Solids, 2008; 69: 2465 – 2470.
• Ozdemir O, Sen S and Sen U. Formation of chromium nitride layers on AISI 1010 steel by nitro-chromizing treatment. Vacuum, 2007; 81: 567 – 570.
• Yeh CL and Chen WH. A comparative study on combustion synthesis of Nb–B compounds. Journal of Alloys and Compounds, 2006; 422: 78 – 85.
• Sen U, Pazarlioglu SS and Sen S. Niobium boride coating on AISI M2 steel by boro-niobizing treatment. Materials Letters, 2008; 62: 2444 – 2446.
• Ribeiro R, Ingole S, Usta M, Bindal C, Ucisik AH and Liang H. Tribological characteristics of boronized niobium for biojoint applications. Vacuum, 2006; 80: 1341 – 1345.
• Usta M. The characterization of borided pure niobium. Surface & Coatings Technology, 2005; 194: 251 – 255.
• Usta M, Ozbek I, Bindal C, Ucisik AH, Ingole S and Liang H. A comparative study of borided pure niobium, tungsten and chromium. Vacuum, 2006; 80: 1321 – 1325.
• Yeh CL and Chen WH. Preparation of niobium borides NbB and NbB2 by self- propagating combustion synthesis. Journal of Alloys and Compounds, 2006; 420: 111 – 116.
• Gidikova N. Vanadium boride coatings on steel. Materials Science and Engineering A, 2000; 278: 181 – 186.
• Brandstötter J and Lengauer W. Multiphase reaction diffusion in transition metal-boron systems. Journal of Alloys and Compounds, 1997; 262 – 263, 390 – 396.