Search Results - "Hähner, Peter"

Spark plasma sintering and mechanical properties of tantalum carbonitrides Ta2CxNy by Manaud, Jérémie, Nakajo, Arata, Corniani, Enrico, Holzhäuser, Michael, Cambriani, Andrea, Cologna, Marco, Hähner, Peter, Vlahovic, Luka, Konings, Rudy

“…Dense tantalum-based carbonitride materials featuring >95 % relative density, TaC, Ta2C1.5N0.5, Ta2CN, Ta2C0.5N1.5 and TaN, were prepared by Spark Plasma…”
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Indentation size effects of ferritic/martensitic steels: A comparative experimental and modelling study by Ruiz-Moreno, Ana, Hähner, Peter

“…•Quasi-static nanoindentation properties are measurement mode independent.•The parameters of dynamic oscillations influence the indentation size effect…”
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Fractal Dislocation Patterning During Plastic Deformation by Hähner, Peter, Bay, Karlheinz, Zaiser, Michael

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Stress−strain curves and derived mechanical parameters of P91 steel from spherical nanoindentation at a range of temperatures by Ruiz-Moreno, Ana, Hähner, Peter, Fumagalli, Francesco, Haiblikova, Vendulka, Conte, Marcello, Randall, Nicholas

“…This work compares different measurement and analysis protocols of spherical nanoindentation tests performed at different temperatures on a…”
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Evaluation of the ductile–brittle transition temperature in the NESC-I material using small punch testing by Turba, Krystof, Hurst, Roger, Hähner, Peter

“…Small punch (SP) fracture testing with subsequent SEM fractographic analysis was applied to an A 508 Class 3 reactor pressure vessel (RPV) steel, used…”
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Determining tensile yield stresses from Small Punch tests: A numerical-based scheme by Hähner, Peter, Soyarslan, Celal, Gülçimen Çakan, Betül, Bargmann, Swantje

“…The Small Punch (SP) test serves the screening of mechanical material properties and their degradation in a virtually non-invasive way. It requires robust…”
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An Enhanced Method to Evaluate Tensile Yield Stress by Small Punch Tests Using Deflection Curves by Gülçimen Çakan, Betül, Hähner, Peter, Soyarslan, Celal, Bargmann, Swantje

“…While force-displacement curves are often preferred in Small Punch (SP) tests due to the ease of the experimental set-up, they encompass significant…”
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Depth-Sensing Hardness Measurements to Probe Hardening Behaviour and Dynamic Strain Ageing Effects of Iron during Tensile Pre-Deformation by Veleva, Lyubomira, Hähner, Peter, Dubinko, Andrii, Khvan, Tymofii, Terentyev, Dmitry, Ruiz-Moreno, Ana

“…This work reports results from quasi-static nanoindentation measurements of iron, in the un-strained state and subjected to 15% tensile pre-straining at room…”
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Experimental and Computational Study of Ductile Fracture in Small Punch Tests by Gülçimen Çakan, Betül, Soyarslan, Celal, Bargmann, Swantje, Hähner, Peter

“…A unified experimental-computational study on ductile fracture initiation and propagation during small punch testing is presented. Tests are carried out at…”
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Sensitivity of thermo-electric power measurements to α–α′ phase separation in Cr-rich oxide dispersion strengthened steels by Pinkas, Malki, Foxman, Zvi, Froumin, Nataly, Hähner, Peter, Meshi, Louisa

“…The sensitivity of thermo-electric power (TEP) measurement to detect the undesired α–α′ phase separation occurring in Cr-rich oxide dispersion strengthened…”
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Round Robin into Best Practices for the Determination of Indentation Size Effects by Ruiz-Moreno, Ana, Hähner, Peter, Kurpaska, Lukasz, Jagielski, Jacek, Spätig, Philippe, Trebala, Michal, Hannula, Simo-Pekka, Merino, Susana, de Diego, Gonzalo, Namburi, Hygreeva, Libera, Ondrej, Terentyev, Dimitry, Khvan, Tymofii, Heintze, Cornelia, Jennett, Nigel

“…The paper presents a statistical study of nanoindentation results obtained in seven European laboratories which have joined a round robin exercise to assess…”
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Acoustic emission monitoring of slow strain rate tensile tests of 304L stainless steel in supercritical water environment by Máthis, Kristián, Prchal, Dušan, Novotný, Radek, Hähner, Peter

“…► Two competitive experimental set-ups for SSRT in SCWR environment. ► In situ acoustic emission (AE) and corrosion potential (CP) measurements. ► Correlation…”
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On the Portevin-Le Chatelier effect: theoretical modeling and numerical results by Rizzi, E, Hahner, P

“…A new model is presented for a physically-consistent description of plastic material instabilities referred to as Portevin-Le Chatelier (PLC) effect, namely…”
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Research and development into a European code-of-practice for strain-controlled thermo-mechanical fatigue testing by Hähner, Peter, Rinaldi, Claudia, Bicego, Valerio, Affeldt, Ernst, Brendel, Thomas, Andersson, Henrik, Beck, Tilmann, Klingelhöffer, Hellmuth, Kühn, Hans-Joachim, Köster, Alain, Loveday, Malcolm, Marchionni, Massimo, Rae, Catherine

“…Thermo-mechanical fatigue (TMF) testing plays an increasingly important role in the design, the reliability assessment and the lifecycle management of safety…”
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On the kinematics of Portevin–Le Chatelier bands: theoretical and numerical modelling by Hähner, Peter, Rizzi, Egidio

“…A model is presented for the description of the Portevin–Le Chatelier (PLC) effect, namely the repetitive plastic yielding that may be observed in metallic…”
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On the physics of the Portevin-Le Châtelier effect part 1: The statistics of dynamic strain ageing by Hähner, Peter

“…Based on the temporal evolution of an ageing time distribution function, a statistical theory of discontinuous glide of non-interacting dislocations in a…”
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Characterization of a 14Cr ODS steel by means of small punch and uniaxial testing with regard to creep and fatigue at elevated temperatures by Bruchhausen, M., Turba, K., de Haan, F., Hähner, P., Austin, T., de Carlan, Y.

“…A 14Cr ODS steel was characterized at elevated temperatures with regard to its behavior in small punch and uniaxial creep tests and in low cycle fatigue tests…”
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Special Issue: Recent developments in thermo-mechanical fatigue by Affeldt, Ernst, Bache, Martin, Bartsch, Marion, Beck, Tilmann, Christ, H.J., Fedelich, Bernard, Hähner, Peter, Holdsworth, Stuart R., Lang, Karl-Heinz, McGaw, Mike, Olbricht, Jürgen, Remy, Luc, Skrotzki, Birgit, Stekovich, Svjetlana

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Statistical mechanics approach to dislocation cell patterning : Patterning in crystal plasticity in monotonic deformation by HÄHNER, Peter

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Corrosion Behavior of SiC Laminate Under Decomposed Sulfuric Acid at 850°C by Badini, Claudio, de Haan, Fredericus, Celasco, Edvige, Hähner, Peter, Vega Bolivar, Claudia M., Biamino, Sara, Pavese, Matteo, Fino, Paolo

“…In view of the possible application of SiC‐based ceramic laminates as critical components of hydrogen generation plants based on sulfur‐iodine or hybrid‐sulfur…”
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