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Joel Andersson

Avdelningschef

Assoc. Prof and Head of Division in Welding Technology

Anställd på Avdelningen för svetsteknologi.

Forskar inom området teknik, produktionsteknik.


My name is Joel Andersson and I’m Assoc. Prof. and Head of Division Welding Technology at University West in Trollhättan Sweden. The Division of Welding Technology at University West comprises about 30 people (including senior researchers, PhD students and engineers) and focuses on three main areas in relation to welding technology; Metallurgy, Modelling of Process physics, and Process development and control. My field of research primarily covers welding and weldability of high temperature materials, in particular the precipitation hardening Ni- and Ni-Fe based superalloys. I’m currently supervising eight PhD students in corresponding research areas.


Publikationer


Influence of homogenisation treatments on the hot ductility of cast ATI® 718Plus® : Effect of niobium and minor elements on liquation characteristics

Publicerat

Influence of homogenisation treatments on the hot ductility of cast ATI® 718Plus® : Effect of niobium and minor elements on liquation characteristics

homogenisation heat treatments. The hot ductility deteriorated significantly after long-dwell homogenisation heat treatments for 24 h at temperatur...

A Methodology to Parameterize Wire + Arc Additive Manufacturing : A Case Study for Wall Quality Analysis

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A Methodology to Parameterize Wire + Arc Additive Manufacturing : A Case Study for Wall Quality Analysis

The objective of this work was the development of a methodology to parametrize wire + arc additive manufacturing (WAAM), aiming dimension...

A numerical model for simulating the effect of strain rate on eutectic band thickness

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A numerical model for simulating the effect of strain rate on eutectic band thickness

Large tensile strains acting on the solidifying weld metal can cause the formation of eutectic bands along grain boundaries. These eutectic bands c...

Advanced microstructural characterisation of cast ATI 718 Plus-effect of homogenisation heat treatments on secondary phases and repair welding behaviour

Publicerat

Advanced microstructural characterisation of cast ATI 718 Plus-effect of homogenisation heat treatments on secondary phases and repair welding behaviour

The influence of base metal conditions on the weld cracking behaviour of cast ATI 718Plus® is investigated by comparing 4 h and 24 h dwell time...

Contour design to improve topographical and microstructural characteristics of Alloy 718 manufactured by electron beam-powder bed fusion technique

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Contour design to improve topographical and microstructural characteristics of Alloy 718 manufactured by electron beam-powder bed fusion technique

Additive manufacturing (AM) processes are being frequently used in industry as they allow the manufacture ofcomplex parts with reduced lead times....

Effect of build location on microstructural characteristics and corrosion behavior of EB-PBF built Alloy 718

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Effect of build location on microstructural characteristics and corrosion behavior of EB-PBF built Alloy 718

Electron beam-powder bed fusion (EB-PBF), a high-temperature additive manufacturing (AM) technique, shows great promise in the production of...

Effect of Direct Energy Deposition Process Parameters on Single-Track Deposits of Alloy 718

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Effect of Direct Energy Deposition Process Parameters on Single-Track Deposits of Alloy 718

The effect of three important process parameters, namely laser power, scanning speed and laser stand-off distance on the deposit geometry,...

Evaluation of test results and ranking criteria for Varestraint testing of an austenitic high-temperature alloy

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Evaluation of test results and ranking criteria for Varestraint testing of an austenitic high-temperature alloy

Varestraint testing is commonly used to evaluate hot cracking susceptibility of materials. In this paper, the dependence of operators and evaluatio...

Influence of laser powder bed fusion process parameters on voids, cracks, and microhardness of nickel-based superalloy alloy 247LC

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Influence of laser powder bed fusion process parameters on voids, cracks, and microhardness of nickel-based superalloy alloy 247LC

The manufacturing of parts from nickel-based superalloy Alloy 247LC by laser powder bed fusion (L-PBF) is challenging, primarily owing to the alloy...

Review of laser powder bed fusion of gamma-prime-strengthened nickel-based superalloys

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Review of laser powder bed fusion of gamma-prime-strengthened nickel-based superalloys

This paper reviews state of the art laser powder bed fusion (L-PBF) manufacturing of γ′ nickel-based superalloys. L-PBF resembles welding; therefor...

Welding metallurgy and weldability of superalloys

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Welding metallurgy and weldability of superalloys

A study of the dynamic impact behaviour of IN 718 and ATI 718Plus® superalloys

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A study of the dynamic impact behaviour of IN 718 and ATI 718Plus® superalloys

The dynamic impact response of IN 718 and ATI 718Plus®, in both the solution heat treated and age-hardened conditions, were investigated at...

Analysis and constitutive modelling of high strain rate deformation behaviour of wire-arc additive-manufactured ATI 718Plus superalloy

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Analysis and constitutive modelling of high strain rate deformation behaviour of wire-arc additive-manufactured ATI 718Plus superalloy

A fundamental prerequisite for obtaining realistic finite element simulation of machining processes, which has become a key machinability assessmen...

EBM-manufactured single tracks of Alloy 718 : Influence of energy input and focus offset on geometrical and microstructural characteristics

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EBM-manufactured single tracks of Alloy 718 : Influence of energy input and focus offset on geometrical and microstructural characteristics

Electron beam melting-powder bed fusion (EBM-PBF) is an additive manufacturing process, which is able to produce parts in layer-by-layer fashion fr...

Heat-Affected-Zone Liquation Cracking in Welded Cast Haynes® 282®

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Heat-Affected-Zone Liquation Cracking in Welded Cast Haynes® 282®

Varestraint weldability testing and Gleeble thermomechanical simulation of the newly developed cast form of Haynes® 282® were performed to understa...

Hot corrosion behaviour of wire-arc additive manufactured Ni-based superalloy ATI 718Plus®

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Hot corrosion behaviour of wire-arc additive manufactured Ni-based superalloy ATI 718Plus®

The hot corrosion behaviour of wire-arc additive manufactured and wrought ATI 718Plus® are studied. ATI 718Plus® produced by the additive...

Influence of Heat Treatments on Heat Affected Zone Cracking of Gas Tungsten Arc Welded Additive Manufactured Alloy 718

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Influence of Heat Treatments on Heat Affected Zone Cracking of Gas Tungsten Arc Welded Additive Manufactured Alloy 718

The weldability of additive manufactured Alloy 718 was investigated in various heat-treated conditions. The microstructure of the base metal was...

Influence of thermal post treatments on microstructure and oxidation behavior of EB-PBF manufactured Alloy 718

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Influence of thermal post treatments on microstructure and oxidation behavior of EB-PBF manufactured Alloy 718

The effect of thermal post treatments consisting of heat treatment (HT), hot isostatic pressing (HIP), and combined HIP-HT on microstructure and...

Investigation of the Effect of Short Exposure in the Temperature Range of 750-950 degrees C on the Ductility of Haynes (R) 282 (R) by Advanced Microstructural Characterization

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Investigation of the Effect of Short Exposure in the Temperature Range of 750-950 degrees C on the Ductility of Haynes (R) 282 (R) by Advanced Microstructural Characterization

A Gleeble-based test method has been developed to study the change in the ductility signature of Haynes (R) 282 (R) during isothermal exposure from...

Laser beam powder bed fusion and post processing of alloy 247LC

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Laser beam powder bed fusion and post processing of alloy 247LC

Alloy 247LC is sensitive to cracking during laser beam powder bed fusion (PBF-LB) manufacturing. Post processing is thus required to close cracks a...

Modeling and simulation of weld solidification cracking part I : A pore-based crack criterion

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Modeling and simulation of weld solidification cracking part I : A pore-based crack criterion

Several advanced alloy systems are susceptible to weld solidification cracking. One example is nickel-based superalloys, which are commonly used in...

Modeling and simulation of weld solidification cracking part II : A model for estimation of grain boundary liquid pressure in a columnar dendritic microstructure

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Modeling and simulation of weld solidification cracking part II : A model for estimation of grain boundary liquid pressure in a columnar dendritic microstructure

Several advanced alloy systems are susceptible to weld solidification cracking. One example is nickel-based superalloys, which are commonly used in...

Modeling and simulation of weld solidification cracking part III : Simulation of solidification cracking in Varestraint tests of alloy 718

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Modeling and simulation of weld solidification cracking part III : Simulation of solidification cracking in Varestraint tests of alloy 718

Several advanced alloy systems are susceptible to weld solidification cracking. One example is nickel-based superalloys, which are commonly used in...

Varestraint testing of selective laser additive manufactured alloy 718 : influence of grain orientation

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Varestraint testing of selective laser additive manufactured alloy 718 : influence of grain orientation

The effect of grain orientation on hot cracking susceptibility of selective laser additive manufactured Alloy 718 was investigated by Varestraint...

Varestraint weldability testing of cast ATI® 718Plus™ : a comparison to cast Alloy 718

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Varestraint weldability testing of cast ATI® 718Plus™ : a comparison to cast Alloy 718

Varestraint testing of the newly developed cast ATI® 718Plus™ after pseudo-HIP (hot isostatic pressing) heat treatments showed that the extent of...

Correlation of precipitate evolution with Vickers hardness in Haynes® 282® superalloy : In-situ high-energy SAXS/WAXS investigation

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Correlation of precipitate evolution with Vickers hardness in Haynes® 282® superalloy : In-situ high-energy SAXS/WAXS investigation

The aim of this work is to characterize the precipitation kinetics in Haynes® 282® superalloys using in-situ high-energy Small Angle X-ray Scatteri...

Effect of Process Parameters on the Crack Formation in Laser Metal Powder Deposition of Alloy 718

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Effect of Process Parameters on the Crack Formation in Laser Metal Powder Deposition of Alloy 718

Cracking in Alloy 718 using laser metal powder deposition has been evaluated in this study. It is found that the material is susceptible to crackin...

Hot cracking in cast alloy 718

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Hot cracking in cast alloy 718

Hot cracking susceptibility of the Fe–Ni-based precipitation hardening cast superalloy Alloy 718 was studied by Varestraint weldability testing....

Hot Cracking Mechanisms in Welding Metallurgy : A Review of Theoretical Approaches

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Hot Cracking Mechanisms in Welding Metallurgy : A Review of Theoretical Approaches

Hot cracking often refers to the appearance of liquid films along grain boundaries or to another place in the weld metal structure. Despite hot...

Improved dynamic impact behaviour of wire-arc additive manufactured ATI 718Plus®

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Improved dynamic impact behaviour of wire-arc additive manufactured ATI 718Plus®

The dynamic response and impact resistance of wire-arc additive manufactured (AMed) and wrought ATI 718Plus in different heat treatment conditions...

Influence of build layout and orientation on microstructural characteristics of electron beam melted Alloy 718

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Influence of build layout and orientation on microstructural characteristics of electron beam melted Alloy 718

Effects of build layout and orientation consisting of (a) height from the build plate (Z-axis), (b) distance between samples, and (c) location in t...

Influence of laser exposure time and point distance on 75-μm-thick layer of selective laser melted Alloy 718

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Influence of laser exposure time and point distance on 75-μm-thick layer of selective laser melted Alloy 718

A systematic matrix with 25 samples, using five different point distances and five laser exposure times, depositing 75-μm-thick layers of Alloy 718...

Influence of successive thermal cycling on microstructure evolution of EBM-manufactured alloy 718 in track-by-track and layer-by-layer design

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Influence of successive thermal cycling on microstructure evolution of EBM-manufactured alloy 718 in track-by-track and layer-by-layer design

Successive thermal cycling (STC) during multi-track and multi-layer manufacturing of Alloy 718 using electron beam melting (EBM) process leads to a...

Investigation on effect of welding parameters on solidification cracking of austenitic stainless steel 314

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Investigation on effect of welding parameters on solidification cracking of austenitic stainless steel 314

This study investigates the solidification cracking susceptibility of the austenitic stainless steel 314. Longitudinal Varestraint testing was used...

Isothermal Oxidation Behavior of EBM-Additive Manufactured Alloy 718

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Isothermal Oxidation Behavior of EBM-Additive Manufactured Alloy 718

Oxidation of Alloy 718 manufactured by electron beam melting (EBM) process has been undertaken in ambient air at 650, 700, and 800 °C for up to 168...

Measurement of the thermal cycle in the base metal heat affected zone of cast ATI ® 718Plus TM during manual multi-pass TIG welding

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Measurement of the thermal cycle in the base metal heat affected zone of cast ATI ® 718Plus TM during manual multi-pass TIG welding

This paper presents a method to acquire thermal data in the base metal heat affected zone (HAZ) during manual multi-pass TIG welding of ATI ® 718Pl...

Microstructural Characterization of Laser Metal Powder Deposited Alloy 718

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Microstructural Characterization of Laser Metal Powder Deposited Alloy 718

A microstructural study of Laser Metal Powder Deposition (LMPD) of Alloy 718, using a low (40 J/mm) and high (100 J/mm) heat inputs (HIs) was...

Microstructure Dependence of Dynamic Impact Behaviour of ATI 718plus® Superalloy

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Microstructure Dependence of Dynamic Impact Behaviour of ATI 718plus® Superalloy

ATI 718Plus® is a γ′-strengthened nickel-based superalloy developed to substitute the widely used Alloy 718 in aero-engine applications. This newer...

Microstructure Development in Track-by-Track Melting of EBM-Manufactured Alloy 718

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Microstructure Development in Track-by-Track Melting of EBM-Manufactured Alloy 718

Electron beam melting (EBM) is a powder-bed fusion process within the group of additive manufacturing (AM) technology that is used to fabricate hig...

Microstructure of Selective Laser Melted Alloy 718 in As-Manufactured and Post Heat Treated Condition

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Microstructure of Selective Laser Melted Alloy 718 in As-Manufactured and Post Heat Treated Condition

Manufacturing of Alloy 718 with selective laser melting (SLM) process faces several challenges. One of the challenges is the process-induced...

Proceedings of the 9th International Symposium on Superalloy 718 & Derivatives : Energy, Aerospace, and Industrial Applications

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Proceedings of the 9th International Symposium on Superalloy 718 & Derivatives : Energy, Aerospace, and Industrial Applications

This technical meeting will focus on Alloy 718 and Superalloys in this class relative to alloy and process development, production, product...

Review of Weldability of Precipitation Hardening Ni- and Fe-Ni-Based Superalloys

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Review of Weldability of Precipitation Hardening Ni- and Fe-Ni-Based Superalloys

Fabrication and welding of structural components for the hot section of aero-engines continues to be of high importance to the manufacturing indust...

The Influence of Base Metal Microstructure on Weld Cracking in Manually GTA Repair Welded Cast ATI 718Plus®

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The Influence of Base Metal Microstructure on Weld Cracking in Manually GTA Repair Welded Cast ATI 718Plus®

The effect of base metal conditions on the weld cracking response of cast ATI 718Plus® was investigated in this study, comparing as cast...

Varestraint weldability testing of additive manufactured alloy 718

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Varestraint weldability testing of additive manufactured alloy 718

The weldability in terms of susceptibility towards hot cracking of selective laser melted (SLM) Alloy 718 was investigated and wrought Alloy 718 wa...

Varestraint Weldability Testing of ATI 718Plus® : Influence of Eta Phase

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Varestraint Weldability Testing of ATI 718Plus® : Influence of Eta Phase

This study investigates the effect of eta phase on hot cracking susceptibility of ATI 718Plus®. Two heat treatment conditions of 950 °C/1 h and 950...

Weldability of wrought Haynes 282 repair welded using manual gas tungsten arc welding

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Weldability of wrought Haynes 282 repair welded using manual gas tungsten arc welding

The ability of the precipitation hardening superalloy Haynes® 282® to be repaired by multi-pass gas tungsten arc welding is investigated in this...

Evaluation of a temperature measurement method developed for laser metal deposition

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Evaluation of a temperature measurement method developed for laser metal deposition

Measuring temperatures in the material during laser metal deposition (LMD) has an inherent challenge caused by the laser. When thermocouples are...

Investigation of laser metal deposited Alloy 718 onto an EN 1.4401 stainless steel substrate

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Investigation of laser metal deposited Alloy 718 onto an EN 1.4401 stainless steel substrate

This paper focuses on how process parameters affect the deposition of Alloy 718 onto an EN 1.4401 stainless steel substrate in terms of secondary...

Microstructural Analyses of ATI 718Plus® Produced by Wire-ARC Additive Manufacturing Process

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Microstructural Analyses of ATI 718Plus® Produced by Wire-ARC Additive Manufacturing Process

A detailed microstructural study of ATI 718Plus superalloy produced by the wire-arc additive manufacturing (WAAM) process was performed through the...

Use of Indicators for Hot and Warm Cracking in Welded Structures

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Use of Indicators for Hot and Warm Cracking in Welded Structures

Weight reduction of mechanical components is becoming increasingly important as a way to provide more environment friendly production and operation...