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titanium-matrix-composites
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Modeling of shot-peening effects on the surface properties of a (Tib + Tic)/Ti-6Al-4V composite employing artificial neural networks
, Article Materiali in Tehnologije ; Volume 50, Issue 6 , 2016 , Pages 851-860 ; 15802949 (ISSN) ; Zabihollah, A ; Sharif University of Technology
Institute of Metals Technology
Abstract
Titanium matrix composites (TMCs) have wide application prospects in the field of aerospace, automobile and other industries because of their good properties, such as high specific strength, good ductility, and excellent fatigue properties. However, in order to improve their fatigue strength and life, crack initiation and growth at the surface layers must be suppressed using surface treatments. Shot peening (SP) is an effective surface mechanical treatment method widely used in industry which can improve the mechanical properties of a surface. However, artificial neural networks (ANNs) have been used as an efficient approach to predict and optimize the science and engineering problems. In...
Producing Ti-6Al-4V/TiC composite with superior properties by adding boron and thermo-mechanical processing
, Article Materials Science and Engineering A ; Volume 564 , 2013 , Pages 473-477 ; 09215093 (ISSN) ; Abbasi, S. M ; Sharif University of Technology
2013
Abstract
In order to study the effect of boron addition on the microstructure and tensile properties of titanium matrix composites, two Ti-6Al-4V/10. Vol% TiC ingots with and without boron were fabricated by VIM furnace and hot rolling. The microstructures of composites were examined using optical microscopy (OM). The X-ray diffraction (XRD) was used to identify the phases present in the composites. Addition of boron resulted in the formation of needle shaped TiB in the matrix that was followed by the refinement of grain size. Compared with Ti-6Al-4V/TiC composite, the composite containing boron content exhibited a significantly higher ductility and lower strength. It was caused by the effects of...