Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Recherche

Afficher tous les résultats pour

Accueil

Personne

Christian Leinenbach

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (62)

Page 3 sur 4

Processability, microstructure and precipitation of a Zr-modified 2618 aluminium alloy fabricated by laser powder bed fusion

Christian Leinenbach, Xavier Maeder

Additive manufacturing offers the opportunity to produce complex geometries from novel alloys with improved properties. Adapting conventional alloys to the process-specific properties can facilitate rapid implementation of these materials in industrial pra ...

2022

On the calibration of thermo-microstructural simulation models for Laser Powder Bed Fusion process: Integrating physics-informed neural networks with cellular automata

Christian Leinenbach

Computational thermo-microstructural modelling has become a powerful tool for understanding the process- microstructure linkage in the Laser Powder Bed Fusion (PBF-LB) technique. Developing models that accurately represent experimental results requires pro ...

ELSEVIER2024

Polarization contrast neutron imaging of magnetic crystallographic phases

Christian Leinenbach, Christos Sofras

Non-destructive characterization methods to observe phase transformations and thus, gain insights to transformation mechanisms in representative volumes are key for the development of advanced materials and manufacturing. Conventional methods are constrain ...

2022

3D Laser Shock Peening – A new method for the 3D control of residual stresses in Selective Laser Melting

Roland Logé, Christian Leinenbach, Jamasp Jhabvala, Eric Boillat, Nikola Kalentics

This paper describes a hybrid additive manufacturing process – 3D Laser Shock Peening (3D LSP), based on the integration of Laser Shock Peening (LSP) with selective laser melting (SLM). The well-known tensile residual stresses (TRS) in the as – built (AB) ...

Elsevier Sci Ltd2017

A parametric neutron Bragg edge imaging study of additively manufactured samples treated by laser shock peening

Roland Logé, Christian Leinenbach, Nikola Kalentics

Laser powder bed fusion is an additive manufacturing technique extensively used for the production of metallic components. Despite this process has reached a status at which parts are produced with mechanical properties comparable to those from conventiona ...

Nature Portfolio2021

4D printing of recoverable buckling-induced architected iron-based shape memory alloys

Christian Leinenbach

Architected materials exhibit extraordinary properties in comparison with conventional materials and structures, resulting in additional functionality and efficiency by engineering the geometry in harmony with the base ma-terial. Buckling-induced architect ...

2023

Wetting Behavior of Ternary Au-Ge-X (X = Sb, Sn) Alloys on Cu and Ni

Christian Leinenbach, Shan Jin

Au-Ge-based alloys are potential substitutes for Pb-rich solders currently used for high-temperature applications. In the present work, the wetting behavior of two Au-Ge-X (X = Sb, Sn) ternary alloys, i.e., Au-15Ge-17Sb and Au-13.7 Ge-15.3Sn (at.%), in con ...

Springer2013

The role of process parameters and printing position on meltpool variations in LPBF Hastelloy X: Insights into laser-plume interaction

Christian Leinenbach

Meltpool dimensions play a pivotal role in defining the defects and microstructure state of Laser Powder Bed Fusion (LPBF) builds. Therefore, it is crucial to investigate variations in meltpool geometries under different process conditions. In this work, w ...

Elsevier2024

Hypereutectic Al-Ce-X (X=Mn, = Mn, Cr, V, Mo, W) alloys fabricated by laser powder-bed fusion

Christian Leinenbach

We characterize the microstructures and high-temperature mechanical properties of Al-2Ce and ternary Al-2Ce-1X (at.%) alloys fabricated by laser powder-bed fusion (LPBF), where X = Mn, Cr, V, Mo, and W are slow-diffusing transition metals. All ternary allo ...

ELSEVIER2024

Control of microstructure and shape memory properties of a Fe-Mn-Si-based shape memory alloy during laser powder bed fusion

Christian Leinenbach, Irene Ferretto

Fe-Mn-Si shape memory alloys are materials, whose functional properties strongly depend on microstructural factors such as grain size and orientation, phase fraction and chemical composition. The present study demonstrates the possibility of microstructure ...

ELSEVIER2022

Theory-guided design of high-strength, high-melting point, ductile, low-density, single-phase BCC high entropy alloys

William Curtin, Christian Leinenbach, Carolina Baruffi, You Rao

The search for new high-temperature alloys that can enable higher-efficiency/lower-emissions power generation has accelerated with the discovery of body-centered cubic (bcc) refractory High Entropy Alloys (HEAs). These many-component, non-dilute alloys in ...

PERGAMON-ELSEVIER SCIENCE LTD2022

Effect of Pre-straining, Activation Temperature and Thermomechanical Training on Recovery Behavior of Femnsi Based Sma

Christian Leinenbach

Iron-based shape memory alloys (Fe-SMAs) can be used for strengthening of existing concrete structures in civil and architectural engineering. This study investigates the recovery behavior of Fe-SMAs under varying pre-strain levels, activation temperatures ...

ELSEVIER2025

Effect of precipitates on martensite formation and shape memory effect of FeMnSi-based shape memory alloys fabricated by laser powder bed fusion

Christian Leinenbach, Irene Ferretto

The initial and evolving microstructure during the tensile test of two Fe-17Mn-5Si-10Cr-4Ni shape memory alloys, with and without V, C and fabricated by laser powder bed fusion are investigated and compared via electron backscattered diffraction, transmiss ...

ELSEVIER SCIENCE SA2025

Thermomechanical Characterization and Performance Evaluation of an Fe-Based Shape Memory Alloy for Coupling Applications

Christian Leinenbach

This study investigates the thermomechanical behavior and performance of a Fe-based shape memory alloy (Fe-SMA) for coupling applications. The alloy, composed of Fe–17Mn–5Si–10Cr–4Ni–1(V,C) (wt.%), was manufactured via induction melting followed by hot rol ...

2025

Effect of thermomechanical training on recovery stress of Fe-based shape memory alloy

Christian Leinenbach

This research explores the impact of thermomechanical treatment on the recovery stress induced by the shape memory effect in an Fe-based shape memory alloy with the composition of Fe-17Mn-5Si-10Cr-4Ni-1(V,C) wt.%. Fe-based shape memory alloys have gained c ...

Elsevier B.V.2024

Alloy design for 3D-printed shape memory alloys

Christian Leinenbach

The integration of 3D printing technologies into the production of shape memory alloys (SMAs) has opened new windows in engineering and enabled the manufacture of complex, customized components with unprecedented geometrical complexity and precision. This ...

Elsevier2025

Small-Scale Physical Modeling of Reinforced Concrete Joints Using Additively Manufactured Reinforcement

Christian Leinenbach

This paper discusses quasi-static cyclic tests conducted on 1:30-scale physical models of RC exterior and knee beam-column joints, with additively manufactured [three-dimensional (3D)-printed] reinforcement cages. These models can be used for centrifuge mo ...

ASCE-AMER SOC CIVIL ENGINEERS2025

Healing cracks in selective laser melting by 3D laser shock peening

Roland Logé, Christian Leinenbach, Jamasp Jhabvala, Nikola Kalentics, Navid Sohrabi, Hossein Ghasemi Tabasi

Selective Laser Melting (SLM) of Ni-based superalloys such as CM247LC is prone to weld-cracking. This paper investigates how to suppress cracks by repeatedly applying Laser Shock Peening (LSP) during the building phase of SLM. Samples made of CM247LC were ...

ELSEVIER2019

Effect of HfO2 dispersoids on the microstructure of a Ni-Cr-Al-Ti superalloy processed by laser-based powder-bed fusion

Christian Leinenbach

The effects of 1 wt% HfO2 nano-dispersoid addition on the microstructure of a high -y' Ni-8.5Cr-5.5Al-1Ti (wt%) model superalloy are investigated after manufacturing via laser-based powder-bed fusion (PBF-LB). Despite their very high melting point, HfO2 di ...

2023

Additively manufactured steel reinforcement for small scale reinforced concrete modeling: Tensile and bond behavior

Christian Leinenbach

Small scale (1:30-1:40) Reinforced Concrete is useful for centrifuge testing. However, manufacturing the reinforcing cages by hand at this scale is practically difficult. This paper suggests that small scale reinforcement can be manufactured using a metal ...

Elsevier Sci Ltd2024