Topic

C: Characterization

Characterization techniques have been fundamental for many discoveries in materials science. This Topic focuses on novel characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.), diffraction and spectroscopy with all sorts of probes such as electrons, ions, photons and neutrons, and techniques accessing the bulk, surfaces and interfaces. Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are addressed.


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Keynote Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB Advanced transmission diffraction and microscopy in SEM

Prof. Dr. Erdmann Spiecker Peter Denninger Dr. Peter Schweizer Dr. Christian Dolle

Highlight Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Characterization of micro deformation behavior in duplex stainless steels

Prof. Guocai Chai Prof. Dr. Ru Lin-Peng

Highlight Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB Correlative 3D-microscopy of Supported Catalytically Active Liquid Metal Solutions (SCALMS) using X-ray and electron tomography

Janis Wirth Silvan Englisch Dominik Drobek Dr. Benjamin Apeleo-Zubiri Dr. Mingjian Wu Dr. Nicola Taccardi Prof. Peter Wasserscheid Prof. Erdmann Spiecker

Keynote Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Detailed structural, chemical composition and optoelectronic properties studies of nanoparticles via transmission electron microscopy

Ph.D. Raul Arenal

Highlight Lecture C09: The laboratory inside the microscope: in situ/operando TEM of dynamic processes in nanoscale materials and devices for applications
WEB Direct insight into the reactivity of Pt nanoparticles in CO Oxidation by operando TEM and the impact of electron dose rate on their coarsening

Dr. Milivoj Plodinec

Keynote Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB Nanoindentation Testing at High Sustained Deformation Rates

PD Dr.-Ing. Benoit Merle

Lecture C04: In situ characterization/testing
WEB New insights into the structure of expanded austenite

Dr. Stephan Mändl Patrick Schlenz Dr. Jürgen W. Gerlach Dr. Darina Manova

Highlight Lecture C10: Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons: Exploiting Contrast and Time
WEB The refurbished ID19 beamline: a versatile station for multi-scale and time-resolved synchrotron-based microtomography using hard X-rays

Dr.-Ing. Alexander Rack

Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB Correlative 3D characterization of hierarchical zeolite structures linking laboratory nano X-ray tomography and 360° electron tomography

Dominik Drobek Dr. Benjamin Apeleo Zubiri Janis Wirth Silvan Englisch Dr. Tobias Weißenberger Prof. Dr. Wilhelm Schwieger Prof. Dr. Erdmann Spiecker

Lecture C10: Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons: Exploiting Contrast and Time
WEB Dendrite morphology and growth in solidifying aluminum alloys using X-ray tomoscopy

Dr. Francisco Garcia-Moreno Dr. Mareike Wegener Dr. Paul Hans Kamm Dr. Tillmann Robert Neu Nadine von der Eltz Dr. Christian Matthias Schlepütz Prof. Dr. John Banhart

Lecture C09: The laboratory inside the microscope: in situ/operando TEM of dynamic processes in nanoscale materials and devices for applications
WEB Detailed Local Analyses of Graphene Oxide under in-situ TEM Heat Treatments

Ph.D. Raul Arenal Mario Pelaez-Fernandez Dr. Simon Hettler Dr. Ana Benito Dr. Wolfgang Maser

Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Microstructural characterization of surface morphology on metastable austenitic stainless steel AISI 347 after different surface modification methods

Tong Zhu Dr. Marek Smaga Prof. Dr. Tilmann Beck

Lecture C04: In situ characterization/testing
WEB Nitrogen marker experiments in austenitic stainless steel for identification of trapping/detrapping processes

Dipl.-Ing. Patrick Schlenz Dr. Stephan Mändl Dr. Darina Manova

Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB Automated crystal orientation mapping in the TEM using a pixelated CMOS detector coupled with electron precession

Dr. Jiwon Jeong Dr. Niels Cautaerts Prof. Dr. Gerhard Dehm Dr. Christian Liebscher

Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Combined TEM and XRD analysis of size, shape and microstructural defects in CdSe nanocrystals

Dipl.-Ing. Stefan Neumann Christina Menter Ahmed Mahmoud Prof. Dr. Doris Segets Prof. Dr. David Rafaja

Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB High strain rate testing of 3D printed copper micropillars

Dr. Rajaprakash Ramachandramoorthy Dr. Szilvia Kalacska Dr. Patrik Schurch Gabriel Poras Dr. Jakob Schwiedrzik Dr. Xavier Maeder Thibaut Merle Dr. Giorgio Ercolano Dr. Wabe Koelmans Dr. Laetitia Philippe Dr. Johann Michler

Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB In situ microcompression and X-ray nanotomography of an additive manufactured Ni-base Superalloy

Michael Sommerschuh Janis Wirth Silvan Englisch Dr. Thomas Przybilla Julian Pistor Prof. Dr. Benoit Merle Prof. Dr. Carolin Körner Prof. Dr. Erdmann Spiecker

Lecture C04: In situ characterization/testing
WEB In-situ characterization of Mo-rich NiAl-(Cr,Mo) composites by synchrotron diffraction during directional solidification

Camelia Gombola Dr. Alexander Kauffmann Ioannis Sprenger Dr. Malte Blankenburg Dr. Norbert Schell Prof. Dr. Martin Heilmaier

Lecture C09: The laboratory inside the microscope: in situ/operando TEM of dynamic processes in nanoscale materials and devices for applications
WEB Real-time TEM investigation of the coarsening of nanoporous gold nanowires by in-situ annealing

Dr. Adrien Chauvin Prof. Dr. Leopoldo Molina Luna Prof. Pierre Yves Tessier Dr. Abdelaziz El Mel

Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Understanding the microstructural essence of damage development in rail steels subjected to rolling contact fatigue

Vitoria Mattos Ferreira Prof. Dr. Roumen H. Petrov Prof. Dr. Jilt Sietsma Dr. Ankit Kumar

Lecture C10: Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons: Exploiting Contrast and Time
WEB X-Ray Tomoscopy: Time-resolved imaging of dynamic processes in materials

Dr.-Ing. Paul H. Kamm Dr. Tillmann R. Neu Dr. Mareike Wegener Nadine von der Eltz Dr. Christian M. Schlepütz Prof. Dr. John Banhart Dr. Francisco García-Moreno

Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB High-strain-rate behavior of metallic microparticles under laser-induced high-velocity impacts: the transition from rebound to bonding

Yuchen Sun Dr. David Veysset Prof. Keith A. Nelson Prof. Christopher A. Schuh

Lecture C04: In situ characterization/testing
WEB In-situ XRD annealing experiment to determine temperature stability of a 1D tungsten - hafnia selective emitters

Gnanavel Vaidhyanathan Krishnamurthy Dr. Michael Störmer

Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Quantitative Characterization of Mixing in Multicomponent Nanoparticle Aggregates

Prof. Dr. Lutz Mädler Dr. Valentin Baric Prof. Dr. Wolfgang Koch

Highlight Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB Strain and phase analysis of magnetic nanocrystals in GaδFeN/Al(x)Ga(1-x)N heterostructures

Tia Truglas Viola Bauernfeind Dr. Werner Ginzinger Margherita Matzer Prof. Dr. Andreas Ney Prof. Dr. Alberta Bonanni Dr. Andrea Navarro-Quezada Dr. Heiko Groiss

Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB The evolution of local strain for structured sheet metals during uniaxial deformation

Evgeniia Ermilova Prof. Dr. Sabine Weiß

Lecture C09: The laboratory inside the microscope: in situ/operando TEM of dynamic processes in nanoscale materials and devices for applications
WEB Watching a thin film crystallize: Microstructure Evolution in HfO2 Based Memristive Devices

Robert Eilhardt Alexander Zintler Oscar Recalde Despoina Nasiou Dr. Stefan Petzold Prof. Dr. Lambert Alff Prof. Dr. Leopoldo Molina-Luna

Highlight Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Characterization of extruded Mg-Dy-Nd under stress corrosion in C-Ring tests

Prof. Dr. Petra Maier

Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Dispersion stability of AZO nanocrystals concerning their processing into functional thin films using small angle X-ray scattering (SAXS)

Julian Ungerer Mira Klinge Ann-Kathrin Thurm Prof. Dr. Georg Garnweitner Prof. Dr. Hermann Nirschl

Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB Indentation densification of fused silica assessed by raman spectroscopy and constitutive finite element analysis

Sebastian Bruns Dr. Tobias Uesbeck Dr. Sindy Fuhrmann Dr. Mariona Tarragó Aymerich Prof. Dr. Lothar Wondraczek Prof. Dr. Dominique de Ligny Prof. Dr. Karsten Durst

Keynote Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB Multi-scale 3D imaging approaches for analysis of lithium ion battery electrode microstructures

Dr. Stephen Kelly Jochen Joos Tobias Volkenandt Robin White Benjamin Tordoff André Weber Ellen Ivers-Tiffée

Lecture C10: Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons: Exploiting Contrast and Time
WEB Segmentation of 3D and 4D synchrotron tomography using deep convolutional neural networks

Tobias Strohmann Eric Breitbarth Katrin Bugelnig Fabian Wilde Thomas Steffens Holger Germann Julie Villanova Kenneth Silva Reyes Pere Barriobero-Vila Guillermo Requena

Highlight Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB TEM Characterization of Nano-debris Wear Particles of a Biocompatible COC Hip Endoprostheses Components

Dr. Darja Feizpour Prof. Dr. Monika Jenko Prof. Dr. Borut Pompe Dr. Boštjan Kocjančič Prof. Dr. Matjaž Godec Prof. Dr. Drago Dolinar

Keynote Lecture C04: In situ characterization/testing
WEB The Swedish high-energy materials science beamline at PETRA III: multi-modal in situ characterization

Dr. Ulrich Lienert Dr. Zoltan Hegedüs Dr. Malte Blankenburg Dr. Johan Hektor Dr. Thomas Bäcker Sven Gutschmidt

Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Characterization of fractal structures produced by flame spray pyrolysis

Mira Klinge Julian Ungerer Prof. Dr. Hermann Nirschl

Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB In situ characterization of the pseudoelasticity effect on Fe-Mn-Al-Ni-Ti single crystals with two different orientations

Dr.-Ing. Anja Weidner Robert Lehnert Alexander Schmiedel Dr. Malte Vollmer Dr. Philipp Krooß Prof. Thomas Niendorf Prof. Horst Biermann

Lecture C04: In situ characterization/testing
WEB Mechanical in-situ CT studies combined with digital volume correlation on lattice structures manufactured by selective laser melting

Dr.-Ing. Pascal Pinter Lukas Englert Dr. Stefan Dietrich

Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB Possibilities and limitations of tomography methods for the quantification of lithium-ion battery cathode microstructures

Dr. Jochen Joos Dr. Christian Fella Dr. Stephen Kelly Fabian Lutter Tobias Volkenandt Dr. André Weber Dr. Fabian Wilde Dr. Simon Zabler Prof. Dr. Ellen Ivers-Tiffée

Highlight Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB Shear band propagation and networking as a response of tribological deformation of a metallic glass

Sangjun Kang Dr. Xiaoke Mu Dr. Di Wang Prof. Dr. Arnaud Caron Prof. Dr. Christian Kübel

Lecture C10: Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons: Exploiting Contrast and Time
WEB Synchrotron X-rays to Engineer Novel Alloys for Additive Manufacturing

Dr. Pere Barriobero Vila Dr. Katrin Bugelnig Kenneth Silva Dr. Eric Breitbarth Tobias Strohmann Dr. Joachim Gussone Dr. Jan Haubrich Dr. Norbert Schell Dr. Andreas Stark Dr. Julie Villanova Prof. Dr. Guillermo Requena

Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB The Effect of Crystal Anisotropy and Aziumuthal Indenter Orientation on the Indentation Hardness and Modulus of Single Crystlal Aluminum

Pavel Filippov Prof. Dr. Ursula Koch

Lecture C04: In situ characterization/testing
WEB A Raman spectroscopic in situ study of binder systems for carbon-bonded filters

Simon Brehm Dr. Cameliu Himcinschi Martin Rudolph Thomas Hammer Benjamin Bock Prof. Dr. David Rafaja Prof. Dr. Christos Aneziris Prof. Dr. Jens Kortus

Lecture C10: Tomographic and Radiographic Imaging with Synchrotron X-rays and Neutrons: Exploiting Contrast and Time
WEB Dendrite morphology and growth in solidifying aluminum alloys using X-ray tomoscopy

Dr.-Ing. Tillmann Robert Neu Dr. Mareike Wegener Dr. Paul Hans Kamm Nadine von der Eltz Dr. Christian Matthias Schlepütz Dr. Francisco García-Moreno Prof. Dr. John Banhart

Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Features of weld metal brittle fracture in Charpy tests

Vladislav Sudin Dr. Matvey Kantor Prof. Dr. Konstantin Solntsev

Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Inline Process Analytics for high solid content polymer samples using Photon Density Wave spectroscopy

Stephanie Schlappa Dr. Christian Peest Dr. Lena Bressel

Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB Multi-scale microstructure characterization on inert supported solid oxide fuel cells

Florian Wankmüller Niklas Russner Dr. André Weber Dr. Matthias Meffert Johannes Schmieg Dr. Heike Störmer Dr. Piero Lupetin Prof. Dr. Dagmar Gerthsen Prof. Dr. Ellen Ivers-Tiffée

Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB Observing the atomic structure of high angle [111] tilt grain boundaries in Al

Saba Ahmad Dr. Christian H. Liebscher Prof. Dr. Gerhard Dehm

Keynote Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB EELS determination of Cation Inversion in Spinel Oxide Nanoparticles

Dr. Sonia Estrade Pau Torruella Alicia Ruiz Michael Walls Alejandro G. Roca Alberto Gómez-Ortega Javier Blanco-Portals Lluis Lopez-Conesa Josep Nogues Francesca Peiro

Lecture C04: In situ characterization/testing
WEB In-situ study of copper fatigue induced by high strain rate thermo-mechanical pulsing

Sebastian Moser Gerald Zernatto Manuel Kleinbichler Dr. Michael Nelhiebel Dr. Johannes Zechner Dr. Megan J. Cordill

Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB New ultra-high temperature nanoindentation system for operating at up to 1100 °C

Christian Minnert Dr. Warren C. Oliver Prof. Dr. Karsten Durst

Highlight Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB Spatially-Resolved EELS Studies on Functionalized Carbon Nanotubes

Ph.D. Raul Arenal

Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
WEB The novel approach to correlative microscopy of AFM-in-SEM using CPEM technology

Ph.D. Josef Horak Dr. Veronika Novotna Veronika Hegrova Dr. Zdenek Novacek Dr. Michal Pavera Dr. Jan Neuman

Highlight Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
Grain-boundary and interface segregation as an effective tool to enhance strength and toughness of nanostructured ceramics

Prof. Dr. Rostislav Daniel Michael Meindlhumer Tobias Ziegelwanger Dr. Jakub Zalesak Stefan Spor Nikolaus Jäger Andreas Stark Dr. Hynek Hruby Dr. Markus Hans Prof. Dr. Jochen Schneider Prof. Dr. Christian Mitterer Prof. Dr. Jozef Keckes

Highlight Lecture C02: Advanced Transmission Electron Microscopy for Materials Science
WEB DPC-STEM observation of magnetic domains in Fe-Si alloy manufactured by laser beam melting

Dr. Sudipta Pramanik Lennart Tasche Julius Bürger Prof. Dr. Jörg K. N. Lindner Dr. Kay-Peter Hoyer Prof. Dr. Mirko Schaper

Lecture C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Determination of the graphite particle orientation and distribution in a carbon-fiber-reinforced epoxy resin by phase-contrast X-ray nanotomography (Nano-CT)

Simon Carl Silvan Englisch Dr. Benjamin Apeleo-Zubiri Simon Bard Prof. Dr. Volker Altstädt Janis Wirth

Lecture C04: In situ characterization/testing
WEB Electric field induced structural behaviour of barium titanate with different grain sizes

Lucas Lemos da Silva Kai-Yang Lee Swen Subotic Daniela Seifert Prof. Dr. Michael Hoffmann Dr. Manuel Hinterstein

Lecture C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Interface characterization by experimental and numerical single-fiber push-out test

Benedikt Rohrmüller Prof. Dr. Peter Gumbsch Dr. Jörg Hohe

Lecture C08: Small scale and in situ mechanical testing: Theory meets experiment
WEB Thermally Activated Deformation Processes in Various Materials Studied by Advanced Nanoindentation Experiments

Dr. Verena Maier-Kiener

Lecture C06: Multi-modal Materials Characterization by Correlative Microscopy, 3D Imaging and In-Situ Techniques
Correlative analysis of local structure in (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-BaTiO3 ceramics compositions through MPB

Angelica Maria Benitez Castro Monica Pinto Salazar Dr. Pedro Braga Groszewicz Prof. Dr. Gerd Buntkowsky Prof. Dr. Kyle G. Webber Prof. Dr. Juan Muñoz Saldaña

Poster C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Agglomeration of gold nanoparticles under microgravity conditions

Andrea Pyttlik Dr. Björn Kuttich Prof. Dr. Tobias Kraus

Poster C04: In situ characterization/testing
WEB Benefits of evaluating coatings in real marine enviroment

Dipl.-Ing. Aiala Urbegain Garate Pablo Benguria Uribe Saioa Saenz De Urturi Ugarte Andrés del Barrio Fernandez Amets Etxeberria Etxabe Raúl Caracena Toribio

Poster C04: In situ characterization/testing
WEB Correlation between electrical and mechanical properties of silver nanowire electrodes studied by complementary in situ microscopy techniques

Marco Moninger Nadine Schrenker Felix Werner Lilian Vogl Dr. Peter Schweizer Peter Denninger Prof. Dr. Christoph J. Brabec Prof. Dr. Erdmann Spiecker

Poster C04: In situ characterization/testing
WEB Corrosion resistance of a Ni-based brazing alloy in a marine atmospheric exposure

Dipl.-Ing. Aiala Urbegain Garate Dr. Virginia Madina Arrese

Poster C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Crack process evaluation in carbon fibre reinforced polymers aged by thermal cycling

Prof. Dr.-Ing. Fernando Lasagni Dr. Sergio González Prof. Dr. Jaime Dominguez

Poster C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Evolution of bimodal L12 (γ') phase distribution and its effect on mechanical properties in nickel-based alloy 718Plus

Barun Bharadwaj Dash Dr. Mahadevan Sundararaman Prof. Shanmugam Sankaran

Poster C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Impact of Strain Tensor on the Microstructure Evolution of Al-Sc-Zr-based Alloy

Bengü Tas Kavakbasi Dr. Friederike Emeis Vladislav Kulitcki Dr. Martin Peterlechner Prof. Dr. Gerhard Wilde Dr. Sergiy Divinskii

Poster C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB Improving sample preparation of multicomponent materials for scanning electron microscopy

Sebastian Weitz Dr. Julian Müller Prof. Dr. Benjamin Butz

Poster C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Modelling of copper particle – copper wall collision at high velocities

Giedrius Jocbalis Prof. Rimantas Kačianauskas

Poster C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Structural and Magnetic Characterization of Iron Oxide Nanoparticles upon Chemical Lithiation

Seda Ulusoy Alejandro Gomez Roca Josep Nogues Peter Svedlindh Germán Salazar-Alvarez

Poster C01: Advanced Particle Characterization for Material Analysis and Synthesis
WEB Template assisted synthesis of mesoporous Pt thin films and their use as electrocatalyst for the oxidation of glycerol

Ph.D. Athira Anil Prof. Germán Salazar-Alvarez

Poster C05: Mechanical Processing and Deformation Induced Microstructural Evolution, Damage Mechanisms and Failure Characterization from Micro to Macro Imaging
WEB The effect of heat-treatment on micro structure and texture evolution in Ti-6Al-4V alloy and its effect on room temperature tensile properties and deformation mechanism

Shubhashis Dixit Dr. Amit Bhattacharjee Prof. Shanmugam Sankaran

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