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Effect of heat treatment on surface morphology of titanium

Tan, K. J. and Mahmod, A. and Wahab, M. A. A. and Idris, Maizlinda Izwana and Abdullah, Hasan Zuhudi (2015) Effect of heat treatment on surface morphology of titanium. In: 2nd International Materials, Industrial & Manufacturing Engineering Conference (MIMEC 2015), 4-6 February 2015, Bali Nusa Dua Convention Center, Bali, Indonesia.

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Abstract

Alkali and heat treatments were first introduced by Kim et al. to prepare a bioactive surface on titanium. This method has been proven very effective and widely used in biomaterial researches to promote titanium osteointegration. This study aims to investigate further the effect of heat treatment on surface morphology of high purity titanium. High purity titanium foils were immersed in 5 M NaOH at 60oC for 24 hours followed by heat treatment at 400oC, 500oC, 600oC, 700oC and 800oC for 1 hour in air atmosphere. The surface morphology was examined using Field Emission Scanning Electron Microscope (FESEM). The surface topography and surface roughness were obtained using Atomic Force Microscopy (AFM). A structure transformation accompanied by significant grain growth were observed as temperature increased from 400oC to 800oC.As temperature increased, the grain coarsened and became larger in size which is in good agreement with the increasing surface roughness. A sudden decrease in surface roughness of titanium at 800oC might be due to the spallation of oxide layer

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: alkali treatment; heat treatment; titanium; titanium dioxide; sodium titanate
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 31 May 2015 07:55
Last Modified: 31 May 2015 07:55
URI: http://eprints.uthm.edu.my/id/eprint/6823
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