Design of alloys and (nano-) composites 

 

We develop novel structural and functional alloys as well as composites by combining computer simulations with sophisticated experiments. A special emphasize is on the design of alloys for additive manufacturing. Our activities cover mainly, but not exclusively, the following materials classes:

  • High-strength Ni, Al and Ti alloys and structural intermetallics (e.g γ-TiAl)

  • Oxide dispersion strengthened (ODS) alloys and (nano-) composites

  • Precious metal alloys

  • Shape memory alloys

 

 

 

Key publications

  • S. Griffiths, H. Ghasemi Tabasi, T. Ivas, X. Maeder, A. De Luca, K. Zweiacker, R. Wrobel, J. Jhabvala, R.E. Logé, C. Leinenbach,  Combining Alloy and Process Modification for Micro-crack Mitigation in an Additively Manufactured Ni-base Superalloy, Additive Manufacturing 36 (2020) 101443
  • S. Griffiths, J. Croteau, M.D. Rossell, R. Erni, A. De Luca, N.Q. Vo, D.C. Dunand, C. Leinenbach, Coarsening- and Creep Resistance of Precipitation-Strengthened Al-Mg-Zr Alloys Processed by Selective Laser Melting, Acta Materialia 188 (2020) 192-202
  • J. Croteau; S. Griffiths; C. Leinenbach; C. Kenel, D. Seidman, D. Dunand, N. Vo , Microstructure and Mechanical Properties of Al-Mg-Zr Alloys Processed by Selective Laser Melting, Acta Materialia 153 (2018) 35-44
  • Arabi-Hashemi, W.J. Lee, A. Lis, C. Leinenbach, Recovery stress formation in FeMnSi based shape memory alloys: Impact of precipitates, texture and grain size, Materials and Design 139 (2018) 258-268
  • Kenel, G. Dasargyri, T. Bauer, C. Hauser, A.B. Spierings, G.J. Tatlock, C. Leinenbach, K. Wegener, Selective laser melting of an oxide dispersion strengthened (ODS) γ-TiAl alloy towards production of complex structures, Materials and Design 134 (2017) 81-90
  • M. Leparoux, L. Kollo, H. Kwon, K. Kallip, N.K. Babu, K.A. AlOgab, M.K. Talari, Solid State Processing of Aluminum Matrix Composites Reinforced with Nanoparticulate Materials, Re-view – Adv. Eng. Mater. 2018, 20, 1800401.
  • H. Kwon, A. Kawasaki, M. Leparoux, Mechanical behaviour of dual nanoparticle-reinforced aluminium alloy matrix composite materials depending on milling time, J. Comp. Mater. 2017, Vol. 51(25) 3557–3562.
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