Yr Athro Helen Davies

Athro

Materials Science and Engineering

h.m.davies@abertawe.ac.uk

Swyddfa Weinyddol - 016
Llawr Gwaelod
Y Sefydliad Deunyddiau Strwythurol
Campws y Bae

Dolenni Ymchwil

https://orcid.org/0000-0003-4838-9572

ResearchGate

Google Scholar

Scopus

Trosolwg

Athro yw Helen Davies yn Sefydliad Deunyddiau Strwythurol Prifysgol Abertawe, lle mae'n arwain y tîm uno trachywir. Gan ddechrau gyda PhD a ganolbwyntiodd ar ditaniwm, ac a noddwyd gan y Weinyddiaeth Amddiffyn ym 1998, dechreuodd ei thaith gan weithio ar fecanweithiau blinder megis effeithiau lludded saib oer mewn aloi titaniwm. Wedi hynny enillodd yr Athro Davies ddeng mlynedd o brofiad diwydiannol trwy gael ei chyflogi yn y diwydiant gweithgynhyrchu nicel. Ers 2015 mae hi wedi arwain y tîm uno trachywir wrth gydweithio â Rolls-Royce, gan ddatblygu technoleg newydd ar gyfer uno aloiau titaniwm ac uwch-aloiau nicel. Yn ogystal, goruchwyliodd nifer o raglenni ymchwil PhD yn rhoi sylw i ditaniwm, gan gynnwys astudiaeth ddiweddar o Ti-407. Mae'r Athro Davies yn Beiriannydd Siartredig ac yn Gymrawd yr Academi Addysg Uwch.

Meysydd Arbenigedd

Aloion Titaniwm
Uwchaloion nicel
Gweithgynhyrchu nicel
Peirianneg Ffin Gronynnau
Ffurfio lled-solet
Gweithgynhyrchu Haen Ychwanegion
Castio Metelau
Dadansoddiad Methiant (Metelau)
Cychwyn Lludded a Chracio

Uchafbwyntiau Gyrfa

Diddordebau Addysgu

Gweithgynhyrchu Metel, Castio, Ffurfio metelau lled-solet.

Ymchwil Cydweithrediadau

Cyhoeddiadau

Uchafbwyntiau Ymchwil

Davies, H. (n.d.) DWELL SENSITIVE FATIGUE IN Ti-685 REVISITED. In 15th World Conference on Titanium (Ti-2023)
https://doi.org/https://doi.org/10.7490/f1000research.1119886.1, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa68042
Davies, P., Johal, A., Davies, H., & Marchisio, S. (2020). The fatigue performance of titanium alloys joined via the powder interlayer bonding method. The International Journal of Advanced Manufacturing Technology, 109(5-6), 1553-1561.
https://doi.org/10.1007/s00170-020-05737-5, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54682
Davies, P., Davies, H., Watkins, I., & Britton, D. (2020). The joining of gamma titanium aluminides via the powder interlayer bonding method. The International Journal of Advanced Manufacturing Technology, 109(7-8), 2049-2054.
https://doi.org/10.1007/s00170-020-05725-9, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54683
Reeks, W., Davies, H., & Marchisio, S. (2020). A review: Interlayer joining of nickel base alloys. Journal of Advanced Joining Processes, 2, 100030
https://doi.org/10.1016/j.jajp.2020.100030, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55021
Stanners, O., Russell, J., John, S., Davies, H., & Marchisio, S. (2021). Powder Interlayer Bonding of Nickel-Based Superalloys with Dissimilar Chemistries. Materials, 14(8), 2029
https://doi.org/10.3390/ma14082029, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa56834
Li, J., Davies, H., Fox, K., Mulyadi, M., Glavicic, M., & Bache, M. (2023). An appraisal of dwell sensitive fatigue in Ti-6Al-4V and the governing role of inhomogeneous micro-texture. International Journal of Fatigue, 171, 107589
https://doi.org/10.1016/j.ijfatigue.2023.107589, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa62788
Bache, M., Li, J., & Davies, H. (2024). A re-assessment of Ti-685 as a dwell sensitive titanium alloy and a definition for engineering relevant dwell behaviour. International Journal of Fatigue, 178
https://doi.org/10.1016/j.ijfatigue.2023.108008, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa64765
Bache, M., Davies, H., Davey, W., Thomas, ., & Berment-Parr, . (2019). Microstructural Control of Fatigue Behaviour in a Novel α + β Titanium Alloy. Metals, 9(11), 1200
https://doi.org/10.3390/met9111200, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52224
http://dx.doi.org/10.3390/met9111200
Davies, P., Johal, A., Davies, H., & Marchisio, S. (2019). Powder interlayer bonding of titanium alloys: Ti-6Al-2Sn-4Zr-6Mo and Ti-6Al-4V. The International Journal of Advanced Manufacturing Technology, 103(1-4), 441-452.
https://doi.org/10.1007/s00170-019-03445-3, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa49812
http://dx.doi.org/10.1007/s00170-019-03445-3
Prikhodko, S., Savvakin, D., Markovsky, P., Stasuk, O., Penney, J., Shirzadi, A., Davies, P., & Davies, H. (2020). Diffusion bonding of TiC or TiB reinforced Ti–6Al–4V matrix composites to conventional Ti–6Al–4V alloy. Science and Technology of Welding and Joining, 1-7.
https://doi.org/10.1080/13621718.2020.1751403, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53891

Holl Ymchwil

Erthyglau Cylchgronau

Bache, M., Li, J., & Davies, H. (2024). A re-assessment of Ti-685 as a dwell sensitive titanium alloy and a definition for engineering relevant dwell behaviour. International Journal of Fatigue, 178
https://doi.org/10.1016/j.ijfatigue.2023.108008, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa64765
Li, J., Davies, H., Fox, K., Mulyadi, M., Glavicic, M., & Bache, M. (2023). An appraisal of dwell sensitive fatigue in Ti-6Al-4V and the governing role of inhomogeneous micro-texture. International Journal of Fatigue, 171, 107589
https://doi.org/10.1016/j.ijfatigue.2023.107589, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa62788
Stanners, O., Russell, J., John, S., Davies, H., & Marchisio, S. (2021). Powder Interlayer Bonding of Nickel-Based Superalloys with Dissimilar Chemistries. Materials, 14(8), 2029
https://doi.org/10.3390/ma14082029, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa56834
Davies, P., Davies, H., Watkins, I., & Britton, D. (2020). The joining of gamma titanium aluminides via the powder interlayer bonding method. The International Journal of Advanced Manufacturing Technology, 109(7-8), 2049-2054.
https://doi.org/10.1007/s00170-020-05725-9, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54683
Davies, P., Johal, A., Davies, H., & Marchisio, S. (2020). The fatigue performance of titanium alloys joined via the powder interlayer bonding method. The International Journal of Advanced Manufacturing Technology, 109(5-6), 1553-1561.
https://doi.org/10.1007/s00170-020-05737-5, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54682
Reeks, W., Davies, H., & Marchisio, S. (2020). A review: Interlayer joining of nickel base alloys. Journal of Advanced Joining Processes, 2, 100030
https://doi.org/10.1016/j.jajp.2020.100030, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55021
Prikhodko, S., Savvakin, D., Markovsky, P., Stasuk, O., Penney, J., Shirzadi, A., Davies, P., & Davies, H. (2020). Diffusion bonding of TiC or TiB reinforced Ti–6Al–4V matrix composites to conventional Ti–6Al–4V alloy. Science and Technology of Welding and Joining, 1-7.
https://doi.org/10.1080/13621718.2020.1751403, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53891
Watkins, I., Davies, H., Stanners, O., & Marchisio, S. (2020). Powder interlayer bonding of geometrically complex Ti-6Al-4V parts. The International Journal of Advanced Manufacturing Technology, 106(9-10), 3629-3639.
https://doi.org/10.1007/s00170-019-04685-z, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52700
Stanners, O., John, S., Davies, H., Watkins, I., & Marchisio, S. (2020). The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys. Materials, 13(3), 601
https://doi.org/10.3390/ma13030601, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53410
Bache, M., Davies, H., Davey, W., Thomas, ., & Berment-Parr, . (2019). Microstructural Control of Fatigue Behaviour in a Novel α + β Titanium Alloy. Metals, 9(11), 1200
https://doi.org/10.3390/met9111200, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52224
http://dx.doi.org/10.3390/met9111200
Bache, M., Davies, H., Davey, W., Thomas, M., & Berment-Parr, . (2019). Microstructural Control of Fatigue Behaviour in a Novel α + β Titanium Alloy. Metals, 9(11)
https://doi.org/10.3390/met9111200, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52766
Davies, P., Johal, A., Davies, H., & Marchisio, S. (2019). Powder interlayer bonding of titanium alloys: Ti-6Al-2Sn-4Zr-6Mo and Ti-6Al-4V. The International Journal of Advanced Manufacturing Technology, 103(1-4), 441-452.
https://doi.org/10.1007/s00170-019-03445-3, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa49812
http://dx.doi.org/10.1007/s00170-019-03445-3
Davey, W., Bache, M., Davies, H., & Thomas, M. (2018). Fatigue Performance of the Novel Titanium Alloy Timetal 407. MATEC Web of Conferences, 165, 04001
https://doi.org/10.1051/matecconf/201816504001, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa40730
Lavery, N., Cherry, J., Mehmood, S., Davies, H., Girling, B., Sackett, E., Brown, S., & Sienz, J. (2017). Effects of hot isostatic pressing on the elastic modulus and tensile properties of 316L parts made by powder bed laser fusion. Materials Science and Engineering: A, 693, 186-213.
https://doi.org/10.1016/j.msea.2017.03.100, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa30238
Zhang, L., Belblidia, F., Davies, H., Lavery, N., Brown, S., & Davies, D. (2017). Optimizing gate location to reduce metal wastage: Co–Cr–W alloy filling simulation. Journal of Materials Processing Technology, 240, 249-254.
https://doi.org/10.1016/j.jmatprotec.2016.09.027, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa30309
Jothi, S., Sebald, T., Reese, E., Brown, S., & Davies, H. (2016). Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component. Materials & Design, 90, 101-114.
https://doi.org/10.1016/j.matdes.2015.10.119, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23890
Yousef, H., Cobley, R., Davies, H., James, D., Mehmood, S., Sackett, E., Sienz, J., Davies, H., Yousef, H., Cobley, R., & Sackett, E. (2015). Establishing a quantifiable tarnish timeline for comparison of anti-tarnish processes in metals. Materials and Corrosion, 66(10), 1120-1124.
https://doi.org/10.1002/maco.201407969, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa20511
Huszar, M., Belblidia, F., Davies, H., Arnold, C., Bould, D., & Sienz, J. (2015). Sustainable injection moulding: The impact of materials selection and gate location on part warpage and injection pressure. Sustainable Materials and Technologies, 5, 1-8.
https://doi.org/10.1016/j.susmat.2015.07.001, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa22736
Innocente, M., Afonso, S., Sienz, J., & Davies, H. (2015). Particle swarm algorithm with adaptive constraint handling and integrated surrogate model for the management of petroleum fields. Applied Soft Computing, 34, 463-484.
https://doi.org/10.1016/j.asoc.2015.05.032, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa22073
Cherry, J., Davies, H., Mehmood, S., Lavery, N., Brown, S., Sienz, J., Brown, S., Sienz, J., Lavery, N., & Davies, H. (2015). Investigation into the effect of process parameters on microstructural and physical properties of 316L stainless steel parts by selective laser melting. The International Journal of Advanced Manufacturing Technology, 76(5-8), 869-879.
https://doi.org/10.1007/s00170-014-6297-2, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa18363
Eckermann, J., Mehmood, S., Davies, H., Lavery, N., Brown, S., Sienz, J., Jones, A., Sommerfeld, P., Brown, S., Sienz, J., Lavery, N., & Davies, H. (2014). Computational modeling of creep-based fatigue as a means of selecting lead-free solder alloys. Microelectronics Reliability, 54(6-7), 1235-1242.
https://doi.org/10.1016/j.microrel.2014.02.017, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa22172
Randle, V. & Davies, H. (2002). Evolution of microstructure and properties in alpha-brass after iterative processing. Metallurgical and Materials Transactions A, 33(6), 1853-1857.
https://doi.org/10.1007/s11661-002-0193-3, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23358
Randle, V. & Davies, H. (2002). A comparison between three-dimensional and two-dimensional grain boundary plane analysis. Ultramicroscopy, 90(2-3), 153-162.
https://doi.org/10.1016/S0304-3991(01)00137-1, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23354
Davies, H., Randle, V., & Davies, H. (2002). Single-section plane assessment in grain boundary engineered brass. Journal of Microscopy, 205(3), 253-258.
https://doi.org/10.1046/j.1365-2818.2002.00989.x, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23357
Davies, H. (2002). Triple junction distribution profiles as assessed by electron backscatter diffraction. Journal of Materials Science, 37(19), 4203-4209.
https://doi.org/10.1023/A:1020052306493, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23356
Randle, V. & Davies, H. (2002). Evolution of microstructure and properties in alpha-brass after iterative processing. Metallurgical and Materials Transactions A, 33(6), 1853-1857.
https://doi.org/10.1007/s11661-002-0193-3, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23361
Davies, H. & Randle, V. (2001). The effect of low strain and annealing iterations on the ductility of alpha-brass. Philosophical Magazine A, 81(11), 2553-2564.
https://doi.org/10.1080/01418610108216654, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23360
Randle, V., Davies, H., & Cross, I. (2001). Grain boundary misorientation distributions. Current Opinion in Solid State and Materials Science, 5(1), 3-8.
https://doi.org/10.1016/S1359-0286(00)00018-8, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23352
Bache, M. & Davies, H. (1997). Dwell sensitive fatigue in a near alpha titanium alloy at ambient temperature. International Journal of Fatigue, 19(93), 83-88.
https://doi.org/10.1016/S0142-1123(97)00020-0, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23359
Davies, H. (1997). Electron back scattered diffraction (EBSD) analysis of quasi-cleavage and hydrogen fractures under cyclic and dwell loading in titanium alloys. J. of Materials Science, 32, 3435-3442.
https://doi.org/10.1023/A:1018624801310, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23355

Penodau Llyfrau

Davies, H. (2012). Characterisation of hydrogen induced fracture in the titanium alloy IMI685. Advances in Fracture Research (pp. 351-358).
SU Repository: https://cronfa.swan.ac.uk/Record/cronfa23362

Cyfraniadau Cynadleddau

Davies, H. (n.d.) DWELL SENSITIVE FATIGUE IN Ti-685 REVISITED. In 15th World Conference on Titanium (Ti-2023)
https://doi.org/https://doi.org/10.7490/f1000research.1119886.1, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa68042

Goruchwyliaeth

Hot Corrosion-Fatigue Behaviour of Nickel Superalloys (cyfredol)

PhD

Goruchwyliwr arall: Prof Mark Whittaker
Understanding creep deformation and lifing approaches for advanced nickel and steel alloys (cyfredol)

PhD

Goruchwyliwr arall: Prof Robert Lancaster

Goruchwyliwr arall: Prof Mark Whittaker
Remnant Life Assessment based on the Small Punch Test and the Wilshire Equations (dyfarnwyd 2023)

PhD

Goruchwyliwr arall: Dr Mark Evans
The Low Cycle Fatigue Behaviour of Laser Powder Bed Fused Stainless Steel 316LN: Build Orientation and Surface Finish Effects (dyfarnwyd 2023)

EngD

Goruchwyliwr arall: Prof Robert Lancaster
Effect of Defects on the HCF Behaviour of Ti-6Al-4V (dyfarnwyd 2024)

EngD

Goruchwyliwr arall: Prof Mark Whittaker
High integrity joining and Repair of Gamma Titanium Aluminides (dyfarnwyd 2022)

EngD

Goruchwyliwr arall: Prof Steve Brown
Mechanical Properties of Vintage Seam-Welded Pipe (cyfredol)

MSc

Goruchwyliwr arall: Dr Elizabeth Sackett

Modiwlau a Addysgir

EG-091 Chemistry of Materials

This course provides an introduction to the chemical properties of materials used throughout engineering. A practical component will be used to complement taught theory and will allow students to develop the skills to carry out a number of basic laboratory manipulations in an accurate and safe manner. Fundamental knowledge regarding atomic structure and chemical bonding will be used to understand material properties and their use within engineering applications, and to understand the ways in which chemical reactions are utilized within a range of engineering processes.
EG-182 Manufacturing Technology I

Manufacturing makes a major contribution to the world economy and, engineering processes help solve some of the most serious challenges facing society today. The role of engineers in the manufacturing sector is crucial to generate sustainable high economic value products and jobs. To meet this ever-changing role, new graduates require an understanding of established and advanced processes. The module provides students with a holistic view of current, emerging and integrated manufacturing processes, providing a wide range of techniques required for producing product specifications based on process/technology selection. The taught material builds together with knowledge gained from materials and design modules. The topics are delivered by means of traditional lectures in each of the areas shown in the syllabus below.
EG-185 Materials Practicals 1: structure / property links in metals

This course is designed to provide students with an introduction to the skills necessary to prepare materials for microscopic examination and to conduct standard mechanical tests. The course supports the Level 1 lecture courses, in particular the courses on Introduction to Materials (EG-180) and on Mechanical Properties (EG-184). The emphasis for this module is the development of practical, experimental, and scientific report writing skills.

Yr Athro Helen Davies

Cyfeiriad ebost

Dolenni Ymchwil

Trosolwg

Meysydd Arbenigedd

Uchafbwyntiau Gyrfa

Cyhoeddiadau

Uchafbwyntiau Ymchwil

Holl Ymchwil

Erthyglau Cylchgronau

Penodau Llyfrau

Cyfraniadau Cynadleddau

Goruchwyliaeth

Hot Corrosion-Fatigue Behaviour of Nickel Superalloys (cyfredol)

Understanding creep deformation and lifing approaches for advanced nickel and steel alloys (cyfredol)

Remnant Life Assessment based on the Small Punch Test and the Wilshire Equations (dyfarnwyd 2023)

The Low Cycle Fatigue Behaviour of Laser Powder Bed Fused Stainless Steel 316LN: Build Orientation and Surface Finish Effects (dyfarnwyd 2023)

Effect of Defects on the HCF Behaviour of Ti-6Al-4V (dyfarnwyd 2024)

High integrity joining and Repair of Gamma Titanium Aluminides (dyfarnwyd 2022)

Mechanical Properties of Vintage Seam-Welded Pipe (cyfredol)

Modiwlau a Addysgir

EG-091 Chemistry of Materials

EG-182 Manufacturing Technology I

EG-185 Materials Practicals 1: structure / property links in metals