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Microstructural Control of Additively Manufactured

The effects of forced interpass cooling on the material

Aug 01,2018 Microstructural Control of Additively Manufactured#0183;The apparatus consists of a 200 A-rated GTAW power source,cold wire feeder,water cooling unit and travel mechanism,as shown in Fig.1.An IR pyrometer was used to measure the in-situ interpass temperature,thereby controlling the dwell time between deposition of layers.The feedstock used in this study was ASTM B863 grade 5 Ti6Al4V wire with a diameter of 1.2 mm,deposited onto a Spatial modulation of laser sources for microstructural Jan 01,2018 Microstructural Control of Additively Manufactured#0183;Spatial modulation of laser sources for microstructural control of additively manufactured metals Author links open overlay panel M.J.Matthews a T.T.Roehling a S.A.Khairallah a G.Guss a S.Q.Wu a M.F.Crumb a J.D.Roehling a J.T.McKeown aSome results are removed in response to a notice of local law requirement.For more information,please see here.

Research Alloy Design and Development Laboratories

This research is useful for microstructural designing of as-fabricated samples and will improve the performance of additively manufactured components.Ankur also aims to couple his work with modeling and machine learning techniques to understand the fundamentals of laser-powder interaction and to predict the optimal processing conditions for Previous123456NextResearch Alloy Design and Development Laboratories This research is useful for microstructural designing of as-fabricated samples and will improve the performance of additively manufactured components.Ankur also aims to couple his work with modeling and machine learning techniques to understand the fundamentals of laser-powder interaction and to predict the optimal processing conditions for Premature failure of an additively manufactured material Apr 24,2020 Microstructural Control of Additively Manufactured#0183;Additively manufactured metallic materials exhibit excellent mechanical strength. The microstructural development is based more on the kinetics of

Non-Destructive Evaluation (NDE) of Additively

Nov 30,2016 Microstructural Control of Additively Manufactured#0183;To enable the Navy to harness metallic AM capabilities for end-use items,the ability to inspect AM manufactured parts becomes a critical issue.Non-destructive evaluation (NDE) technologies have served a valuable role in quality control and testing of components in the field to determine their structural integrity.NAFEMS - Taking into Account Defects in Structural Microstructural defects are inherent in additively manufactured or casted components.By optimizing the manufacturing processes,porosity might be reduced or shifted to non-critical regions,but avoiding porosity completely most often is not possible or leads to inefficient manufacturing processes.Modeling of Microstructural Irregularities in Additively Microstructural Control of Additively Manufactured#0183;Modeling of Microstructural Irregularities in Additively Manufactured Materials.Agency Department of Defense OBJECTIVE Develop a modeling framework to predict the mechanical properties of additively manufactured structures accounting for microstructure .DESCRIPTION The additive manufacturing (AM) process often produces parts with

Microstructure and Mechanical Properties of Wire + Arc

Nov 21,2019 Microstructural Control of Additively Manufactured#0183;AluminumLithium (AlLi) alloy is a topic of great interest owing to its high strength and light weight,but there are only a few applications of AlLi alloy in wire + arc additive manufacturing (WAAM) process.To identify its feasibility in WAAM process,a special AA2050 AlLi alloy wire was produced and employed in the production of straight-walled components,using a WAAM system Microstructural Properties of Heat-Treated LENS In Situ Microstructural Control of Additively Manufactured#0183;This study reports on the microstructure,phase identification and hardness property of the LENS-manufactured binary Ti-Al alloy which was achieved via laser in situ alloying.The in situ alloying method,using laser beam as an energy source,indicated that it is possible to achieve a binary gamma phase microstructure from elemental powders of Ti and Al.The as-produced sample,however,was Microstructural Properties of Heat-Treated LENS In Situ Microstructural Control of Additively Manufactured#0183;This study reports on the microstructure,phase identification and hardness property of the LENS-manufactured binary Ti-Al alloy which was achieved via laser in situ alloying.The in situ alloying method,using laser beam as an energy source,indicated that it is possible to achieve a binary gamma phase microstructure from elemental powders of Ti and Al.The as-produced sample,however,was

Microstructural Control of Additively Manufactured

Jul 01,2016 Microstructural Control of Additively Manufactured#0183;Microstructural Control of Additively Manufactured Metallic Materials Microstructural Control of Additively Manufactured Metallic Materials Collins,P.C.; Brice,D.A.; Samimi,P.; Ghamarian,I.; Fraser,H.L.2016-07-01 00:00:00 In additively manufactured (AM) metallic materials,the fundamental interrelationships that exist between composition,processing,and microstructure governMicrostructural Control of Additively Manufactured In additively manufactured (AM) metallic materials,the fundamental interrelationships that exist between composition,processing,and microstructure govern these materials properties and potential improvements or reductions in performance.For example,by using AM,it is possible to achieve highly desirable microstructural features (e.g.,highly refined precipitates) that could not Microstructural Control of Additively Manufactured In additively manufactured (AM) metallic materials,the fundamental interrelationships that exist between composition,processing,and microstructure govern these materials properties and potential improvements or reductions in performance.For example,by using AM,it is possible to achieve highly desirable microstructural features (e.g.,highly refined precipitates) that could not

Microstructural Control of Additively Manufactured

2020 National Award Winners; Awards Gallery; Awards Program Overview; LabTech in Your Life Stay-at-Home EditionMechanical behaviour of additively manufacturedMechanical behaviour of additively manufactured materials ION Congress 2018 Dr.Vera Popovich Delft University of Technology (TUDelft) Contact [email protected],+31 (0) 15 2789568 Outline Who we are AM research activities at TUDelft Introduction General concepts Nickel-based super alloys o Mechanical properties and How build angle and post-processing impact roughness and Jul 30,2020 Microstructural Control of Additively Manufactured#0183;Additively manufactured austenitic stainless steels exhibit numerous microstructural and morphological differences compared to their wrought counterparts that

High-throughput experimentation for microstructural design

Aug 19,2020 Microstructural Control of Additively Manufactured#0183;316L SS specimens were additively manufactured using the EOS M290 system.A 400 W Ytterbium fiber laser with a wavelength of 1060 nm and a beam diameter of 100 m was used as the energy source.Build plates were preheated to 80 Microstructural Control of Additively Manufactured#176;C,and an inert argon atmosphere was maintained during the fabrication process.Enhancement of an additive-manufactured austenitic N2 - The effect of post-manufacture heat-treatment on the mechanical strength of an additively-manufactured austenitic stainless steel has been investigated.Microstructural investigations revealed that the as-manufactured material exhibited a multi-scale structure,composed of grains,cells,dislocations and nano-sized particles.Enhancement of an additive-manufactured austenitic N2 - The effect of post-manufacture heat-treatment on the mechanical strength of an additively-manufactured austenitic stainless steel has been investigated.Microstructural investigations revealed that the as-manufactured material exhibited a multi-scale structure,composed of grains,cells,dislocations and nano-sized particles.

Effects of Laser-Beam Defocus on Microstructural Features

Jun 02,2020 Microstructural Control of Additively Manufactured#0183;However,little is known about the effects of laser-beam defocus on microstructural features of additively manufactured materials by the multi-beam LDED.Figure 1Effect of a New High-Pressure Heat Treatment on Additively The application of an innovative high-pressure T6 treatment (HPT6) to additively manufactured AlSi10Mg alloy is reported in this paper.The aim of this treatment is to obtain the effective Corrosion of Additively Manufactured Alloys A Review Corrosion of Additively Manufactured Alloys relating the corrosion performance to the microstructural features influenced by AM processing,are reviewed.Such features include unique porosity,grain structures,dislocation networks,residual

Cited by 2Publish Year 2018Author M.J.Matthews,T.T.Roehling,S.A.Khairallah,G.Guss,S.Q.Wu,M.F.Crumb,J.D.Roehling,J.T.McKIn situ tailoring microstructure in additively

Feb 15,2017 Microstructural Control of Additively Manufactured#0183;Presented here are our latest research findings on microstructural control of additively manufactured Ti-6Al-4V by SLM.We show that,by designing innovative SLM processing routes,it is practical to attain significant in-situ martensite decomposition to produce lamellar (+) microstructures with a tuneable lath width ranging from 0 Cited by 146Publish Year 2016Author P.C.Collins,D.A.Brice,P.Samimi,I.Ghamarian,H.L.FraserMicrostructural Control of Additively Manufactured Microstructural Control of Additively Manufactured Metallic Materials IN ADDITIVELY MANUFACTURED COMPONENTS Generally,the simulation of microstructural evolution assumes an input energy sufcient to melt all incoming material.As described in Section 2.1,the required input energy is a function of various thermophysical properties,Application of bulk deformation methods for T1 - Application of bulk deformation methods for microstructural and material property improvement and residual stress and distortion control in additively manufactured components.AU - Colegrove,Paul A.AU - Donoghue,Jack.AU - Martina,Filomeno.AU - Gu,Jianglong.AU - Prangnell,Philip.AU - H Microstructural Control of Additively Manufactured#246;nnige,Jan.PY - 2017/7.Y1 - 2017/7

Application of bulk deformation methods for

Jul 01,2017 Microstructural Control of Additively Manufactured#0183;Application of bulk deformation methods for microstructural and material property improvement and residual stress and distortion control in additively manufactured components Author links open overlay panel Paul A.Colegrove a Jack Donoghue b Filomeno Martina a Jianglong Gu c Philip Prangnell b Jan H Microstructural Control of Additively Manufactured#246;nnige aAn Overview of Densification,Microstructure and Apr 09,2014 Microstructural Control of Additively Manufactured#0183;The alloy was additively manufactured by EBM [105].Figure 24.(a) SEM back-scatter-electron (BSE) image of Y-Cl particles in an YH2-doped,as-sintered Ti alloy,(b) SEM energy dispersive x-ray (EDX) spectrum showing the enrichment of both Y and Cl in the phase and (c) TEM selected area electron diffraction (SAED) analysis of the phase [107].Additively manufactured tantalum microstructures(Journal @article{osti_1459835,title = {Additively manufactured tantalum microstructures},author = {Livescu,Veronica and Knapp,Cameron M.and Gray,George T.and Martinez,Ramon M.and Morrow,Benjamin M.and Ndefru,Bineh G.},abstractNote = {Additively manufacturing tantalum is a challenging process in which obstacles are stemming from the high melting temperature and susceptibility to oxidation

Additively Manufactured Flexure-based Microstructrual

Additively Manufactured Flexure-based Microstructrual Logic Gates Background While the computing industry quickly moved to electronic logic systems,mechanical logic offers several advantages,if it can successfully be readily scaled down to microscale.Accelerated Certification of Additively Manufactured MetalsThe unique benefits of rapid build time and unique microstructural control offered by additive manufacturing processes cannot be fully realized with existing long certification times.Lawrence Livermore National Laboratory is investing in a strategic initiative to address this challenge the Accelerated Certification of Additively A Proposed Qualification Methodology for Additively A Proposed Qualification Methodology for Additively Manufactured Spaceflight Propulsion Hardware Kristin Morgan specs and standards for control of critical processes.Agency-level standards provide Microstructural evolution from as-built structure to recrystallized material

12345NextMicrostructural Control of Additively Manufactured

Jul 01,2016 Microstructural Control of Additively Manufactured#0183;Microstructural Control of Additively Manufactured Metallic Materials Microstructural Control of Additively Manufactured Metallic Materials Collins,P.C.; Brice,D.A.; Samimi,P.; Ghamarian,I.; Fraser,H.L.2016-07-01 00:00:00 In additively manufactured (AM) metallic materials,the fundamental interrelationships that exist between composition,processing,and microstructure govern(PDF) The role of titanium on the microstructure and The mechanical properties,microstructure,and interfacial characteristics of the additively manufactured MS1-H13 bimetals were investigated using different mechanical and microstructural techniques.(PDF) The role of titanium on the microstructure and The mechanical properties,microstructure,and interfacial characteristics of the additively manufactured MS1-H13 bimetals were investigated using different mechanical and microstructural techniques.

(PDF) On the solidification characteristics,deformation

Aug 26,2020 Microstructural Control of Additively Manufactured#0183;The mechanical properties,microstructure,and interfacial characteristics of the additively manufactured MS1-H13 bimetals were investigated using different mechanical and microstructural(PDF) On the solidification characteristics,deformation Aug 26,2020 Microstructural Control of Additively Manufactured#0183;The mechanical properties,microstructure,and interfacial characteristics of the additively manufactured MS1-H13 bimetals were investigated using different mechanical and microstructural(PDF) Microstructural Control of Additively Manufactured Microstructural Control of Additively Manufactured Metallic Materials.August 2016; Annual Review of Materials Research 46(1) In additively manufactured (AM) metallic materials,the

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