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Biography

Professional biography

Richard completed his PhD on additive manufacturing of nickel superalloys at the University of Manchester in 2010 and then as a PDRA he worked on low temperature transformation welding materials also at the University of Manchester. In 2011 he moved to The Open University where he was appointed lecturer in Materials Engineering and in 2015 Senior Lecturer. His research interests include Neutron Diffraction, Synchrotron X-ray Diffraction, Aperiodic metamaterials, Residual stress analysis and Metallurgy.

Research interests

Richard’s research interests hinge around the use of diffraction and optical techniques to develop understanding of residual stress, phase transformations or mechanical behavior of materials. This work often involves the use of large scale national and international research facilities such as ISIS and Diamond in Oxfordshire and the ILL and ESRF in Grenoble, France.

As well as Diffraction techniques, Richard regularly uses the Open University characterization facilities, such as EBSD and digital image correlation to support his research. 

Projects

Contour Method Software Development (XD-12-041-RM)

The Contour Method is a destructive method of residual stress characterisation that involves back-calculating the stresses required to cause small elastic distortions in a surface induced by cutting a component into two halves. Although the theory of this method is quite straightforward processing of raw measurements of displacement in a reliable manner is not a trivial task. Furthermore, current software employed in academia is restricted by licence for use in non-commercial work and this limits consultancy work that can be undertaken. The project will involve consolidating two computational methods, one developed by the OU and one by the University of Manchester, into a single software package, using a programing language that doesn't restrict the commercial exploitation of the method. A consultant, namely Mike Fox, who is a scientific software expert, will undertake the majority of the work, with support from Richard Moat.

Novel superior materials based on aperiodic tilings

The proposed research aims at laying the mathematical foundations for aperiodic tiling - inspired structures to be used for additive manufacturing of novel cellular materials. http://www.open.ac.uk/r...ructures-inspired-maths

EPSRC Centre For Doctoral Training (CDT) - Nuclear Energy

An existing CDT led by the Centre for Nuclear Engineering (CNE) at Imperial College in collaboration with multi-disciplinary nuclear groups at Cambridge (Nuclear Energy Centre, CNEC) and The Open Universities, is now joined by the University of Bristol and Bangor University to form a new Nuclear CDT, bringing together over 50 academics with internationally-leading research across nuclear materials (e.g. primary circuit structures, fuels, structural materials and wasteforms), joining/manufacturing technologies, structural integrity assessment methods and standards, thermal hydraulics, geological storage and disposal (e.g. rock mechanics), safety and security (e.g. accident modelling and structural integrity), nuclear technology policy and public engagement, plant decommissioning and clean up, regulation, new nuclear build, advanced reactor technology, the fuel cycle, plant life extension, and naval nuclear propulsion.

Publications

Book Chapter

Open Source Contour Method Analysis for Assessing Residual Stress in Weldments (2024)

Square-based honeycombs: a study of shape and performance (2024)

Journal Article

Residual Stress Map for 75Ni13.5Cr2.7B-3.5Si Clad 316 Stainless Steel (2024)

A class of aperiodic honeycombs with tuneable mechanical properties (2024)

Identification of mechanically representative samples for aperiodic honeycombs (2024)

Mechanical and intergranular corrosion properties of auto TIG welded TP347H-T91 dissimilar weldme (2024)

An isotropic zero Poisson's ratio metamaterial based on the aperiodic ‘hat’ monotile (2023)

A systematic numerical and experimental study into the mechanical properties of five honeycombs (2023)

Mechanical characterisation of novel aperiodic lattice structures (2023)

A computational method for determining the linear elastic properties of 2D aperiodic lattice structures (2023)

Compressive behaviour of cellular structures with aperiodic order (2022)

Additive manufacturing of bio-inspired multi-scale hierarchically strengthened lattice structures (2021)

The τ-plot, a multicomponent 1-D pole figure plot, to quantify the heterogeneity of plastic deformation (2020)

pyCM: An open-source computational framework for residual stress analysis employing the Contour Method (2020)

On the Accuracy of Finite Element Models Predicting Residual Stresses in Quenched Stainless Steel (2019)

Mesoscale modelling of miscible and immiscible multicomponent fluids (2019)

The effect of cyclic-loading generated intergranular strains on the creep deformation of a polycrystalline material (2019)

Mechanical Property Heterogeneity in Additively Manufactured Nickel Superalloy (2018)

Substructure Development and Deformation Twinning Stimulation through Regulating the Processing Path during Multi-Axial Forging of Twinning Induced Plasticity Steel (2018)

The influence of temperature on deformation-induced martensitic transformation in 301 stainless steel (2018)

Residual stress control of multipass welds using low transformation temperature fillers (2018)

Through-Thickness Residual Stress Profiles in Austenitic Stainless Steel Welds: A Combined Experimental and Prediction Study (2017)

Origin of the Bauschinger effect in a polycrystalline material (2017)

Prediction of residual stresses in girth welded pipes using an artificial neural network approach (2017)

In situ observation of strain and phase transformation in plastically deformed 301 austenitic stainless steel (2016)

Modelling and control of neutron and synchrotron beamline positioning systems (2016)

A new method for quantifying anisotropic martensitic transformation strains accumulated during constrained cooling (2014)

Surface residual stresses in multipass welds produced using low transformation temperature filler alloys (2014)

Back stress work hardening confirmed by Bauschinger effect in a TRIP steel using bending tests (2014)

Effect of interpass temperature on residual stresses in multipass welds produced using low transformation temperature filler alloy (2013)

ENGIN-X – instrument for materials science and engineering research (2013)

In situ neutron diffraction study of texture evolution and variant selection during the α→β→α phase transformation in Ti–6Al–4V (2012)

Work hardening induced by martensite during transformation-induced plasticity in plain carbon steel (2012)

Linear friction welding of aluminium to magnesium (2012)

Linear friction welding of aluminium to copper (2012)

In Situ observation on the influence of ß grain growth on texture evolution during phase transformation in Ti-6A-4V (2011)

Design of weld fillers for mitigation of residual stresses in ferritic and austenitic steel welds (2011)

A comparison of residual stress development in inertia friction welded fine grain and coarse grain nickel-base superalloy (2011)

Residual stresses in laser direct metal deposited Waspaloy (2011)

In-situ observation of primary γ′ melting in Ni-base superalloy using confocal laser scanning microscopy (2011)

A comparative study of laser direct metal deposition characteristics using gas and plasma-atomized Ti–6Al–4V powders (2011)

Detailed diffraction and electron microscopy study of inertia-friction-welded dissimilar high-strength steels (2011)

Deformation twinning in Ti-6Al-4V during low strain rate deformation to moderate strains at room temperature (2010)

Linear friction welding of AISI 316L stainless steel (2010)

Residual stresses in inertia-friction-welded dissimilar high-strength steels (2009)

Crystallographic texture and microstructure of pulsed diode laser-deposited Waspaloy (2009)

Phase transformations across high strength dissimilar steel inertia friction weld (2008)

Presentation / Conference

Origin and Effect of Back Stress on Cyclic Creep Deformation of 316H Stainless Steel (2015)

An assessment of the mechanisms of transformation plasticity in SA508 Grade 3 steel during simulated welding thermal cycles (2014)

Effect of Sn on Corrosion Mechanisms in Advanced Zr-Cladding for Pressurised Water Reactors (2014)

The effect of Sn on corrosion mechanisms in advanced Zr-cladding for pressurised water reactors (2013)