- Advanced materials and composites
- Injection Molding Process and Properties
- Titanium Alloys Microstructure and Properties
- Aluminum Alloys Composites Properties
- Orthopaedic implants and arthroplasty
- Advanced ceramic materials synthesis
- Electrocatalysts for Energy Conversion
- Electrodeposition and Electroless Coatings
- Intermetallics and Advanced Alloy Properties
- Corrosion Behavior and Inhibition
- Advancements in Battery Materials
- Conducting polymers and applications
- Additive Manufacturing and 3D Printing Technologies
- Shape Memory Alloy Transformations
- Powder Metallurgy Techniques and Materials
- Additive Manufacturing Materials and Processes
- Electrochemical Analysis and Applications
- High Entropy Alloys Studies
- Advanced battery technologies research
- Bone Tissue Engineering Materials
- MXene and MAX Phase Materials
- Advanced machining processes and optimization
- Epoxy Resin Curing Processes
- Metal and Thin Film Mechanics
- Metallurgy and Material Forming
University of Waikato
2022-2025
University of Auckland
2014-2022
Aluminum often requires protective coatings to prevent corrosion. The aluminum alloy substrate usually needs pretreatment minimize, stabilize or convert the surface oxide in order achieve adequate coating adhesion. electrodeposited Ni-P is a promising candidate as due its easy fabrication and excellent performance. This study comprehensively investigates of zincating anodizing on 6061 alloy, systematically discusses their influence coatings. crystal structure elemental composition were...
In this study, corrosion, wear, and tribocorrosion of Ti-16Mo alloy manufactured by powder metallurgy (PM) in phosphate-buffered saline are investigated. The results indicate that the corrosion rate increases about 100 times from 0.00009 mm/yr to 0.00851 under condition. Also, accelerates wear loss, increment due (4.7715 mm/yr) is 40% pure mechanical (11.78 mm/yr). Compared with as-cast Ti (23.70999 Ti-6Al-4 V (17.12003 mm/yr), exhibits lowest materials loss 16.56001 making it become a...
A newly developed porous Ti35Zr28Nb scaffold was manufactured via powder metallurgy (PM) using space-holder (NH4HCO3) sintering from pre-alloyed powder. The pore features, compression and anti-corrosion properties of the scaffolds were systematically studied. results show that all consisted a single β phase. porosity increased 50% to 65% with in increasing NH4HCO3 63% 79% (volume ratio), average size (d50) range 230–430 μm. yield strength elastic modulus both decreased gradually an increase...
The effects of sub-transus (α+β) annealing treatment (ST), followed by single aging (SA) or duplex (DA) on the microstructural evolution and mechanical properties near-β Ti–4Al–1Sn–2Zr–5Mo–8V–2.5Cr (mass fraction, %) alloy were investigated using optical microscopy, scanning electron transmission microscopy. results show that finer secondary α phase precipitates in after DA than SA (e.g., 149 nm for 69 DA, both ST at 720 °C). main reason is pre-aging step (300 °C) process leads to formation...
An environment-friendly solvent debinding process for polyoxymethylene (POM) metal injection molding (MIM) is presented as an alternative to the traditional catalytic method. This study investigated influence of various acid solvents and temperature. The optimal parameters were 5 M nitric solution at 60 °C. Based on calculation effective diffusivity activation energy, solvent-debinding mechanism POM proposed. removal was controlled by three processes: dissolution, diffusion, chemical...
Titanium alloy bipolar plates hold significant promise for proton exchange membrane fuel cells (PEMFC) due to their high specific strength, excellent machinability and low density. However, the surface oxide film readily reacts with fluoride ions (F − ) in service environments, forming porous, layered fluorotitanium compounds that compromise life stability. To overcome these limitations, this study utilised magnetron sputtering deposit a 1 μm-thick tantalum (Ta) coating on TA1 titanium...