Department of
Mechanical, Materials and Manufacturing Engineering
   
   
  
 

Image of Graham McCartney

Graham McCartney

Professor of Materials Processing, Faculty of Engineering

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Biography

Graham McCartney is part of the Advanced Materials Research Group.

Expertise Summary

I graduated with a first class honours degree in Metallurgy from Oxford University and followed this with a DPhil at Oxford on cellular and dendritic solidification and I held a Junior Research Fellowship as a post-doctoral researcher at Merton College Oxford for work on superconducting materials. My main research interests are in the field of process-structure-property relationships in engineering materials. I have been involved in studies of solidification behaviour of alloys for a number of years using both experimental methods and numerical modelling. This has extended into applying this knowledge to optimise the laser processing of materials through laser surface treatment and surface cladding. In recent years, my principal area of research has concerned the use of high velocity oxy-fuel thermal spraying to produce high performance engineering surface coatings. Studies have ranged from computational modelling of the process through analysis and control of microstructure, to work on corrosion and wear behaviour. An additional field of interest is that of additive manufacture using intense power sources to deposit alloys directly to near net shape via melting and re-solidification. I have authored or co-authored over 100 publications in refereed journals and was awarded the Institute of Materials Grunfeld Medal for contributions to improved processes in materials engineering. I have considerable experience of preparing and delivering lecture courses to graduate and undergraduate students covering topics such as introduction to materials engineering, structure-property relationships in materials, joining technology and aerospace materials. I also have expertise in knowledge transfer and am currently supervising a Knowledge Transfer Partnership and have previously been involved with a number of Teaching Company Schemes.

Research Summary

I undertake both fundamental and applied research in the field of processing of engineering materials. This involves design and development of bulk alloys, protective surface engineering coatings and… read more

Selected Publications

Current Research

I undertake both fundamental and applied research in the field of processing of engineering materials. This involves design and development of bulk alloys, protective surface engineering coatings and deposition technologies via process-microstructure-property studies for applications in the energy, transport and aerospace industries.

In the surface engineering field I have a number of research projects concerned with the development of new and improved coatings to protect engineering coatings against aggressive wear, corrosion or high temperature oxidation and to provide novel properties. Investigations are based around coatings deposited by high velocity oxy fuel thermal spraying and cold gas dynamic spraying. As well as examining the relationships between structure and properties in such coatings, work is also underway to optimise coating deposition conditions using advanced techniques for monitoring the spraying processes and through computational modelling. Application areas include gas turbine engines and power plant, food processing machinery, automotive components, magnetic shielding and medical equipment.

My other main research area is in the use of intense power sources such as lasers or electric arcs for joining of advanced alloys and direct metal deposition (additive manufacture) to produce high performance components for a range of engineering applications. A key feature is the implementation of robotic process capability. The emphasis of the work is on establishing the effects of processing on the microstructure and properties of titanium and nickel - based alloys and how process conditions can be tailored to particular engineering requirements for optimised performance. Computational modelling is being developed to reduce design lead times for new components and improve production capability.

Future Research

Future research will continue to develop improved thermal and cold sprayed coating systems for specific applications in the protection of components operating at high temperatures such as are increasingly required in the power generation industry. Alongside this, computational modelling work on the thermal stability of generic coating - substrate systems is being developed to assist in optimising alloys and microstructures.

Opportunities to develop novel powders for application by thermal spray through techniques such as spray drying and gas atomisation are being explored so that a greater range of high performance coating systems, e.g. those with amorphous, nanocrystalline and nanocomposite structures, can be evaluated for future industrial applications.

In the additive manufacture field, process maps are being constructed for key high performance alloys and further work is planned to develop the micro-macro modelling approach so that it is possible to predict microstructure formation using input from macroscale thermal models.

Department of Mechanical, Manufacturing and Materials Engineering

The University of Nottingham
University Park
Nottingham, NG7 2RD


telephone: +44 (0) 115 95 14081