Browsing by Supervisor "Gabbitas, Brian"
Now showing items 1-16 of 16
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An assessment of the corrosion resistance of powder sprayed titanium coatings
(The University of Waikato, 2010)Aluminium and stainless steels are susceptible to pitting corrosion in sea water. Mild steel is susceptible to corrosion in general. Titanium however, has good corrosion resistance in chloride solutions and thus is not ... -
Design of a Stable Traffic Cone
(The University of WaikatoUniversity of Waikato, 2006)Traffic cones are a common sight on roads in most countries but due to their commonplace nature people tend not to think too much about their design and the importance of them in maintaining safe traffic flow is often ... -
Direct Metal Laser Sintering of Titanium implant with Tailored structure and Mechanical Properties
(University of Waikato, 2014)Direct Metal Laser Sintering has attracted much attention over the last decade for producing complex parts additively based on digital models. The capability and reliability of this process has stimulated new design concepts ... -
Effects of powder conditioning on the quality, microstructure and mechanical properties of sintered titanium alloys
(University of Waikato, 2015)A small amount of internal lubricant (Stearic acid (SA) or Magnesium stearate (MgSt)) was added to Ti powder for the purpose of improving the compressibility and the green density homogeneity. Lubrication improved the ... -
Investigation of Flow Parameters for Titanium Cold Spraying using CFD Simulation
(University of Waikato, 2010)A comprehensive study of cold gas dynamic spray technology is required for optimising performance and gun design for spraying various materials. Cold spraying technology is a new technique in industry and very limited data ... -
Microstructure and mechanical properties of aluminium based nanocomposites strengthened with alumina and silicon carbide
(University of Waikato, 2014)Al-Al₂O₃ and Al-4wt%Cu-SiC metal matrix nanocomposites were studied because these materials have a potential for offering good ductility, high strength, and high electrical and/or thermal conductivity, which make them ideal ... -
Microstructure and Mechanical Properties of Ti-6Al-4V Produced by Selective Laser Sintering of Pre-alloyed Powders
(The University of Waikato, 2010)The purpose of this research is to investigate the microstructure and mechanical properties of Ti6Al4V pre-alloyed powders producing by direct metal laser sintering technique. Through this research, the direct fabrication ... -
Producing near-net shape titanium alloy parts by metal injection moulding
(University of Waikato, 2016)Metal injection moulding (MIM), is a metalworking process for producing complex parts from metal powders. It is often more cost effective to use MIM to make small, precise componentry from expensive materials such as ... -
Recovery and Purification of Titanium Dioxide and Aluminium Compounds from Corundum By-product of the TiPro Process
(University of Waikato, 2013)The TiPro process developed at the University of Waikato utilises an aluminothermic reaction to create titanium rich intermetallic alloys or alloy powders by solid-liquid separation. The product is then reduced with calcium ... -
Simulation of the powder forging process for titanium components using a porous metal plasticity model
(University of Waikato, 2014)Powder forging is a technique that has been used to produce fully dense near-net parts from metal powders. Due to a “low cost titanium” product manufacturing initiative, targeting a reduction in the cost of titanium ... -
Study of the Effects of Key Processing Parameters on the Cost and Quality of Ti-Al Powders Produced Using the TiPro Process
(University of Waikato, 2015)The high cost of titanium has motivated a global drive to research and develop low-cost titanium production technologies. In New Zealand, the TiPro process has been invented at the University of Waikato. The process starts ... -
Study of Titanium based Composite Coatings for Resistance against Molten Aluminium Soldering on H13 Tool Steel
(University of Waikato, 2011)The service life of industrial components is limited predominantly by chemical corrosion, mechanical failure or mechanical wear. In the aluminium high pressure die casting industry, liquid aluminium is extremely reactive ... -
Study on Low-cost Alternatives for Synthesising Powder Metallurgy Titanium and Titanium Alloys
(University of Waikato, 2017)The aim of this work was to carry out research about cost effective ways for synthesising powder metallurgy Ti and Ti alloys. This was done: using low cost Ti powders produced by the hydrogenation dehydrogenation (HDH) ... -
Synthesis, Microstructure and Mechanical Properties of Titanium with Controlled Levels of Porosity
(University of Waikato, 2014)Porous titanium (Ti) products have many applications due to their excellent corrosion resistance, high strength-to-weight ratio, high specific surface area, etc. However, the major limitation is the expensive cost of porous ... -
The Effect of Powder Characteristics and Processing Conditions on the Microstructure and Mechanical Properties of Titanium Alloys Made by Powder Forging
(University of Waikato, 2013)Powder compact forging was used to produce Ti and Ti-6Al-4V rocker arms using pre-alloyed and blended elemental powders. Green powder compacts with high relative density were manufactured by warm compaction. Due to the ... -
The Synthesis of High Strength Titanium Alloy and Titanium Alloy Matrix Composite by Powder Compact Extrusion from Blended Elemental Powders
(University of Waikato, 2016)Powder compact extrusion (PCE) from blended elemental powders is an effective way to produce titanium alloys and titanium matrix composites with high performance. Its main advantage is cost effectiveness, where high cost ...
