Additive manufacturing of ultra-high strength steels: A review

K Li, T Yang, N Gong, J Wu, X Wu, DZ Zhang… - Journal of Alloys and …, 2023 - Elsevier
Ultra-high strength steels (UHSSs) have excellently comprehensive mechanical properties,
which has attracted significant interest in their advanced manufacturing. Additively …

Heterostructured stainless steel: Properties, current trends, and future perspectives

L Romero-Resendiz, M El-Tahawy, T Zhang… - Materials Science and …, 2022 - Elsevier
The study of heterostructured materials (HSMs) answered one of the most pressing
questions in the metallurgical field:“is it possible to greatly increase both the strength and the …

Directed energy deposition of metals: processing, microstructures, and mechanical properties

SH Li, P Kumar, S Chandra… - International Materials …, 2023 - journals.sagepub.com
Amongst the many additive manufacturing (AM) techniques, directed energy deposition
(DED) is a prominent one, which can also be used for the repair of damaged components. In …

A micropillar compression investigation into the plastic flow properties of additively manufactured alloys

SH Li, Y Zhao, J Radhakrishnan, U Ramamurty - Acta Materialia, 2022 - Elsevier
Solidification cells and a high density of dislocations are two common features of additively
manufactured (AM) alloys that are processed using techniques such as laser powder bed …

Delayed deformation-induced martensite transformation and enhanced cryogenic tensile properties in laser additive manufactured 316L austenitic stainless steel

GM Karthik, ES Kim, P Sathiyamoorthi, A Zargaran… - Additive …, 2021 - Elsevier
The cellular dislocation structure is an important microstructure aspect in fusion-based laser
metal additive manufactured (MAM) parts. Its role in increasing strength and ductility at room …

Deformation faulting and dislocation-cell refinement in a selective laser melted 316L stainless steel

F He, C Wang, B Han, G Yeli, X Lin, Z Wang… - International Journal of …, 2022 - Elsevier
The selective laser melted (SLM) 316L stainless steel (316L SS) has shown superior tensile
ductility and doubled yield strength compared to its wrought counterpart. The significantly …

Effect of initial dislocation density on the plastic deformation response of 316L stainless steel manufactured by directed energy deposition

SH Li, Y Zhao, P Kumar, U Ramamurty - Materials Science and …, 2022 - Elsevier
The relationship between the microstructural features (such as the solidification cells and
initial dislocation densities) and the tensile properties of alloys additively manufactured (AM) …

Role of the solidification cells on the yield strength of the Al-Si-Mg alloy manufactured using laser powder bed fusion: A micropillar compression study

SH Li, Y Zhao, U Ramamurty - Scripta Materialia, 2023 - Elsevier
To ascertain the role of the solidification cell structures on the mechanical performance of Al-
Si-(Mg) alloys processed using the laser powder bed fusion (LPBF) technique, micropillar …

Role of cellular structure on deformation twinning and hetero-deformation induced strengthening of laser powder-bed fusion processed CuSn alloy

GM Karthik, ES Kim, A Zargaran, P Sathiyamoorthi… - Additive …, 2022 - Elsevier
The sub-grain cellular dislocation structure has been reported to be the primary reason for
the enhanced mechanical properties in laser powder-bed fusion (LPBF) parts. In the current …

Constitutive modeling of cellular-structured metals produced by additive manufacturing

J Kwon, GM Karthik, Y Estrin, HS Kim - Acta Materialia, 2022 - Elsevier
Computational modeling is essential in the development and application of metal additive
manufacturing (MAM). Most materials processed by laser or electron beam MAM exhibit a …