Strategies for improving the sustainability of structural metals

D Raabe, CC Tasan, EA Olivetti - Nature, 2019 - nature.com
Metallic materials have enabled technological progress over thousands of years. The
accelerated demand for structural (that is, load-bearing) alloys in key sectors such as …

[HTML][HTML] Holistic computational design within additive manufacturing through topology optimization combined with multiphysics multi-scale materials and process …

M Bayat, O Zinovieva, F Ferrari, C Ayas… - Progress in Materials …, 2023 - Elsevier
Additive manufacturing (AM) processes have proven to be a perfect match for topology
optimization (TO), as they are able to realize sophisticated geometries in a unique layer-by …

Geometrically necessary dislocations and related kinematic hardening in gradient grained materials: A nonlocal crystal plasticity study

X Zhang, J Zhao, G Kang, M Zaiser - International Journal of Plasticity, 2023 - Elsevier
Gradient grained metals whose microstructure is characterized by a spatially graded grain
size distribution show a better strength-ductility combination than their homogeneous …

Current challenges and opportunities in microstructure-related properties of advanced high-strength steels

D Raabe, B Sun, A Kwiatkowski Da Silva… - … Materials Transactions A, 2020 - Springer
This is a viewpoint paper on recent progress in the understanding of the microstructure–
property relations of advanced high-strength steels (AHSS). These alloys constitute a class …

Teaching solid mechanics to artificial intelligence—a fast solver for heterogeneous materials

JR Mianroodi, N H. Siboni, D Raabe - Npj Computational Materials, 2021 - nature.com
We propose a deep neural network (DNN) as a fast surrogate model for local stress
calculations in inhomogeneous non-linear materials. We show that the DNN predicts the …

[HTML][HTML] Mechanical anisotropy of additively manufactured stainless steel 316L: An experimental and numerical study

A Charmi, R Falkenberg, L Ávila, G Mohr… - Materials Science and …, 2021 - Elsevier
The underlying cause of mechanical anisotropy in additively manufactured (AM) parts is not
yet fully understood and has been attributed to several different factors like microstructural …

Unveiling the Re effect in Ni-based single crystal superalloys

X Wu, SK Makineni, CH Liebscher, G Dehm… - Nature …, 2020 - nature.com
Single crystal Ni-based superalloys have long been an essential material for gas turbines in
aero engines and power plants due to their outstanding high temperature creep, fatigue and …

Accelerating the design of compositionally complex materials via physics-informed artificial intelligence

D Raabe, JR Mianroodi, J Neugebauer - Nature Computational …, 2023 - nature.com
The chemical space for designing materials is practically infinite. This makes disruptive
progress by traditional physics-based modeling alone challenging. Yet, training data for …

In-situ experimental and high-fidelity modelling tools to advance understanding of metal additive manufacturing

L Wang, Q Guo, L Chen, W Yan - International Journal of Machine Tools …, 2023 - Elsevier
Metal additive manufacturing has seen extensive research and rapidly growing applications
for its high precision, efficiency, flexibility, etc. However, the appealing advantages are still …

Mechanisms of macrozone elimination and grain refinement of near α Ti alloy via the spheroidization of the Widmannstätten structure

S Xu, H Zhang, N **ao, R Qiu, Z Cui, M Fu - Acta Materialia, 2023 - Elsevier
Regions with sharp local textures, ie, macrozones, are common microstructural
inhomogeneities in titanium (Ti) alloys that significantly reduce the fatigue resistance of Ti …