Arne Röttger
YOU?
Author Swipe
View article: HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13
HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13 Open
This study examines the properties and performance of Osprey HWTS 50, a lean hot work tool steel with 0.22 mass% carbon, manufactured via laser powder bed fusion (PBF‐LB/M). Its performance in sliding wear and gas nitriding tests is compar…
View article: A comparison of powder metallurgical and conventional processing of tungsten-alloyed high boron tool steels
A comparison of powder metallurgical and conventional processing of tungsten-alloyed high boron tool steels Open
View article: Alloying Strategies for Secondary Hardening in High‐Boron Cold Work Tool Steels: A Comparative Study
Alloying Strategies for Secondary Hardening in High‐Boron Cold Work Tool Steels: A Comparative Study Open
Post processing of tool steels often requires an elevated tempering resistance, enabled by the precipitation of tempering carbides, increasing the hardness. This necessitates sufficient solute contents of alloying elements in a supersatura…
View article: A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying
A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying Open
This work introduces a novel approach for alloy development of steels for laser powder bed fusion. Instead of producing massive samples of one alloying composition at a time, the application of prepressed powder bed samples produced from p…
View article: Solidification and microstructural evolution in hypoeutectic Fe–C–B–Cr–V alloys
Solidification and microstructural evolution in hypoeutectic Fe–C–B–Cr–V alloys Open
The objective of this study was to characterize the microstructural effects of Vanadium (V) additions on the hypoeutectic region of the quaternary Fe–C–B–Cr system. Special attention was given to determining the stabilization of carbides, …
View article: Direct Recycling of Tool Steel Swarf Using Field Assisted Sintering
Direct Recycling of Tool Steel Swarf Using Field Assisted Sintering Open
View article: Contribution of Materials Technology to Achieving Sustainability Goals
Contribution of Materials Technology to Achieving Sustainability Goals Open
View article: Microstructure Formation in Hypoeutectic Alloys in the Fe–C–B–Cr–W System
Microstructure Formation in Hypoeutectic Alloys in the Fe–C–B–Cr–W System Open
This work investigates the influence of tungsten (W) on the microstructure of alloys in the system Fe–C–B–Cr. The main goal is to examine the effect of W-additions on the microstructure and especially the potential stabilization of primary…
View article: Hydrogen Economy vs. Hydrogen Embrittlement: Indirect Electrochemical Determination of Hydrogen Diffusion in Steel
Hydrogen Economy vs. Hydrogen Embrittlement: Indirect Electrochemical Determination of Hydrogen Diffusion in Steel Open
Hydrogen has reemerged in recent years as a promising environment−friendly energy carrier that can help reduce the world's dependence on fossil fuels. Despite its unique advantages, there are still challenges regarding the storage, packagi…
View article: Hydrogen Economy vs. Hydrogen Embrittlement: Indirect Electrochemical Determination of Hydrogen Diffusion in Steel
Hydrogen Economy vs. Hydrogen Embrittlement: Indirect Electrochemical Determination of Hydrogen Diffusion in Steel Open
Hydrogen has reemerged in recent years as a promising environment−friendly energy carrier that can help reduce the world's dependence on fossil fuels. Despite its unique advantages, there are still challenges regarding the storage, packagi…
View article: Additive manufacturing of carbon-martensitic hardening ledeburitic cold work tool steels using Fused Filament Fabrication and subsequent Supersolidus Liquid-Phase Sintering
Additive manufacturing of carbon-martensitic hardening ledeburitic cold work tool steels using Fused Filament Fabrication and subsequent Supersolidus Liquid-Phase Sintering Open
In this work, the microstructure property relationship of D2 (X153CrMoV12; 1.2379) ledeburitic cold work steel processed by filament extrusion is investigated. Contrary to the conventional process, which involves a multi-step process of pr…
View article: General investigations on the heat treatment and thermal fatigue behavior of an experimental hot work tool steel tailored for laser powder bed fusion
General investigations on the heat treatment and thermal fatigue behavior of an experimental hot work tool steel tailored for laser powder bed fusion Open
View article: Powder bed fusion of pure copper using an electron beam – achieving high conductivity by real-time process monitoring and control
Powder bed fusion of pure copper using an electron beam – achieving high conductivity by real-time process monitoring and control Open
Powder bed fusion of metals using an electron beam (PBF-EB/M) has reached market maturity. While most parts manufactured with PBF-EB/M are titanium-based, the rising interest in highly conductive pure copper is attracting attention from bo…
View article: Repurpose – How to upgrade tools and save resources
Repurpose – How to upgrade tools and save resources Open
The present paper describes implementing the repurposing strategy in the circular economy for the tool and cutlery industry with particular emphasis on the material properties, primarily the carbide orientation on wear resistance. For this…
View article: Influence of hard phase size and spacing on the fatigue crack propagation in tool steels—Numerical simulation and experimental validation
Influence of hard phase size and spacing on the fatigue crack propagation in tool steels—Numerical simulation and experimental validation Open
In this study, the fatigue crack growth rate in four different tool steel microstructures (hot rolled, powdermetallurgically processed, as‐cast, and carbide‐free) is experimentally measured and correlated with hard phase size and spacing, …
View article: Contents / Inhalt
Contents / Inhalt Open
View article: Excavation Simulations and Cutting Tool Wear
Excavation Simulations and Cutting Tool Wear Open
The mechanized tunnel construction is carried out by tunnel boring machines, in which the soil in front of the working face is removed, and the tunnel lining is carried out with shotcrete or the setting of segments and their back injection…
View article: Processing of a Martensitic Tool Steel by Wire-Arc Additive Manufacturing
Processing of a Martensitic Tool Steel by Wire-Arc Additive Manufacturing Open
This work investigates the processability of hot-work tool steels by wire-arc additive manufacturing (DED-Arc) from metal-cored wires. The investigations were carried out with the hot-work tool steel X36CrMoWVTi10-3-2. It is shown that a c…
View article: Investigation of the potential of topology optimization in additive manufacturing using the example of components subject to bending stress
Investigation of the potential of topology optimization in additive manufacturing using the example of components subject to bending stress Open
In this application‐oriented work, we examine the performance of topology‐optimized structures as compared to the reference I‐beam. We make use of the thermodynamic topology optimization based on a linear elastic compliance minimization, i…
View article: NdFeB Magnets with Well‐Pronounced Anisotropic Magnetic Properties Made by Electric Current‐Assisted Sintering
NdFeB Magnets with Well‐Pronounced Anisotropic Magnetic Properties Made by Electric Current‐Assisted Sintering Open
Electric current‐assisted sintering (ECAS) technologies are highly promising for processing of NdFeB magnets. Due to the combination of direct Joule heating and application of external load, even powders, whose particle size distribution a…
View article: Microstructure and Properties of a Novel Carbon‐Martensitic Hot Work Tool Steel Processed by Laser Additive Manufacturing without Preheating
Microstructure and Properties of a Novel Carbon‐Martensitic Hot Work Tool Steel Processed by Laser Additive Manufacturing without Preheating Open
Laser additive manufacturing (LAM) techniques, such as laser‐powder bed fusion (L‐PBF) or laser‐directed energy deposition (L‐DED), allow for the production of complex‐shaped parts by either the local melting of a metallic powder bed by a …
View article: Contents
Contents Open
Determination of the
View article: Influence of a Partial Substitution of Co by Fe on the Phase Stability and Fatigue Behavior of a CoCrWC Hard Alloy at Room Temperature
Influence of a Partial Substitution of Co by Fe on the Phase Stability and Fatigue Behavior of a CoCrWC Hard Alloy at Room Temperature Open
The deformation-induced phase transition from fcc to hcp causes local embrittlement of the metal matrix in Cobalt-base alloys, facilitating subcritical crack growth under cyclic loading and reducing fatigue resistance. Our approach to incr…
View article: Processability of a Hot Work Tool Steel Powder Mixture in Laser-Based Powder Bed Fusion
Processability of a Hot Work Tool Steel Powder Mixture in Laser-Based Powder Bed Fusion Open
Powder bed fusion of metals using a laser beam system (PBF-LB/M) of highly complex and filigree parts made of tool steels is becoming more important for many industrial applications and scientific investigations. To achieve high density an…
View article: Simulation of ductile crack propagation in metal matrix composites ‐ Comparison with cyclic experiments
Simulation of ductile crack propagation in metal matrix composites ‐ Comparison with cyclic experiments Open
The efficient operation of mechanized tunnel drilling machines is strongly determined by the wear resistance of the applied mining tools. Especially in chisels, but also partly in cutting disks, metal matrix composites are used. Their wear…
View article: Study on the Austemperability of Thin-wall Ductile Cast Iron Produced by High-Pressure Die-casting
Study on the Austemperability of Thin-wall Ductile Cast Iron Produced by High-Pressure Die-casting Open
The production of thin-wall ductile iron (TWDI) by high-pressure die-casting (HPDC) is complex because of several metallurgical and microstructural challenges. The present work aims to evaluate the austemperability of components (4 mm thic…
View article: Relevance of processing parameters for grain growth of metal halide perovskites with nanoimprint
Relevance of processing parameters for grain growth of metal halide perovskites with nanoimprint Open
The quality and the stability of devices prepared from polycrystalline layers of organic–inorganic perovskites highly depend on the grain sizes prevailing. Tuning of the grain size is either done during layer preparation or in a post-proce…
View article: Impact of the Allowed Compositional Range of Additively Manufactured 316L Stainless Steel on Processability and Material Properties
Impact of the Allowed Compositional Range of Additively Manufactured 316L Stainless Steel on Processability and Material Properties Open
This work aims to show the impact of the allowed chemical composition range of AISI 316L stainless steel on its processability in additive manufacturing and on the resulting part properties. ASTM A276 allows the chromium and nickel content…
View article: Comparison of the Processability and Influence on the Microstructure of Different Starting Powder Blends for Laser Powder Bed Fusion of a Fe3.5Si1.5C Alloy
Comparison of the Processability and Influence on the Microstructure of Different Starting Powder Blends for Laser Powder Bed Fusion of a Fe3.5Si1.5C Alloy Open
This paper examines different blends of starting materials for alloy development in the laser powder bed fusion (LPBF) process. By using blends of individual elemental, ferroalloy and carbide powders instead of a pre-alloyed gas-atomized s…
View article: Improved Process Efficiency in Laser-Based Powder Bed Fusion of Nanoparticle Coated Maraging Tool Steel Powder
Improved Process Efficiency in Laser-Based Powder Bed Fusion of Nanoparticle Coated Maraging Tool Steel Powder Open
Research and development in the field of metal-based additive manufacturing are advancing steadily every year. In order to increase the efficiency of powder bed fusion of metals using a laser beam system (PBF LB/M), machine manufacturers h…