High temperature failure processes in Ni base superalloys

Project overview

We are focussing on the role of environment and temperature on the fatigue failure mechanisms in Ni based turbine disc and blade alloys, comparing polycrystalline, single crystal and additively manufactured systems. We have a particular focus on understanding the micromechanisms of failure and how this links to key microstructural features and local processes

Staff

Lead researchers

Professor Philippa Reed

PROFESSOR OF STRUCTURAL MATERIALS

Research interests

Fatigue processes in additively manufactured high performance alloys
High temperature oxidation and creep fatigue processes in nickel based turbine disc and blade alloys
Fatigue mitigation and prediction approaches in turbine blades

Connect with Philippa

Email: P.A.Reed@soton.ac.uk

Dr Andrew Hamilton

Associate Professor

Connect with Andrew

Email: A.R.Hamilton@soton.ac.uk

Collaborating research institutes, centres and groups

Engineering Materials and Surface Engineering Group

Our research activities are often multidisciplinary involving collaborations with other research groups, Universities and industry partners.

Research outputs

Effect of heat treatment on fatigue crack growth in IN718/316L multiple-materials layered structures fabricated by laser powder bed fusion

Marie-Salome, Dani Duval-Chaneac, Nong Gao, R.H.U Khan, Michael Giles, K. Georgilas, Xiao Zhao & Philippa Reed, 2022, International Journal of Fatigue, 160(7)

DOI: 10.1016/j.ijfatigue.2022.106852

Type: article

Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature

Yuanguo Tan, Daniel John Bull, Rong Jiang, Angelos Evangelou, Somsubhro Chaudhuri, Sari Octaviani, Fabrice Pierron, Nong Gao, H. Toda, Ian Sinclair & Philippa Reed, 2021, Materials Science & Engineering: A, 805(140592)

DOI: 10.1016/j.msea.2020.140592

Type: article

Fatigue crack growth mechanisms in powder metallurgy Ni-based superalloys—A review

R. Jiang, Y.D. Song & P.A. Reed, 2020, International Journal of Fatigue, 141

DOI: 10.1016/j.ijfatigue.2020.105887

Type: article

On the mechanism of oxidation-fatigue damage at intermediate temperatures in a single crystal Ni-based superalloy

Evangelos Evangelou, Katherine Soady, Scott Lockyer, Nong Gao & Philippa Reed, 2019, Materials Science and Engineering: A, 742, 648-661

DOI: 10.1016/j.msea.2018.10.095

Type: article

A diffusion-based approach for modelling crack tip behaviour under fatigue-oxidation conditions

R. J. Kashinga, L. G. Zhao, V. V. Silberschmidt, R. Jiang & P. A.S. Reed, 2018, International Journal of Fracture

DOI: 10.1007/s10704-018-0311-x

Type: article

Strain accumulation and fatigue crack initiation at pores and carbides in a SX superalloy at room temperature

R. Jiang, D.J. Bull, A. Evangelou, A. Harte, F. Pierron, I. Sinclair, M. Preuss, X.T. Hu & P.A.S. Reed, 2018, International Journal of Fatigue, 114, 22-33

DOI: 10.1016/j.ijfatigue.2018.05.003

Type: article

Role of oxygen in enhanced fatigue cracking in a PM Ni-based superalloy

R. Jiang, D. Proprentner, M. Callisti, B. Shollock, X.T. Hu, Y.D. Song & P.A.S. Reed, 2018, Corrosion Science, 139, 141-154

DOI: 10.1016/j.corsci.2018.05.001

Type: article