Helmut Clemens

(Former)

1 - 50 out of 626Page size: 50

Research output

  1. 2024
  2. Published

    Materials science-based guidelines to develop robust hard thin film materials

    Mayrhofer, P. H., Clemens, H. & Fischer, F.-D., 3 Jun 2024, In: Progress in materials science. 146.2024, December, 57 p., 101323.

    Research output: Contribution to journal › Review article › peer-review

  3. 2023
  4. Published

    Emissivity measurements conducted on intermetallic γ-TiAl-based alloys for aeronautical applications

    Usategui, L., López-Ferreno, I., Echániz, T., Sainz-Menchón, M., Musi, M., Clemens, H. & López, G. A., 1 Nov 2023, In: Journal of Materials Research and Technology. 27.2023, November-December, p. 3170-3179 10 p.

    Research output: Contribution to journal › Article › Research › peer-review

  5. E-pub ahead of print

    High-temperature microstructure evolution of an advanced intermetallic nano-lamellar γ-TiAl-based alloy and associated diffusion processes

    Nó, M. L., Klein, T., Clemens, H. & San Juan, J. M., 4 Oct 2023, (E-pub ahead of print) In: Acta materialia. 261.2023, 1 December, 13 p., 119380.

    Research output: Contribution to journal › Article › Research › peer-review

  6. E-pub ahead of print

    Precipitation behavior of hexagonal carbides in a C containing intermetallic γ-TiAl based alloy

    Burtscher, M., Weißensteiner, I., Wartbichler, R., Kirchheimer, K., Bernhard, C., Kiener, D. & Clemens, H., 4 Oct 2023, (E-pub ahead of print) In: Journal of alloys and compounds. 2023, 969, 7 p., 172400.

    Research output: Contribution to journal › Article › Research › peer-review

  7. E-pub ahead of print

    Alloying elements in intermetallic γ-TiAl based alloys – A review on their influence on phase equilibria and phase transformations

    Musi, M., Graf, G., Clemens, H. & Spörk-Erdely, P., 9 Jul 2023, (E-pub ahead of print) In: Advanced engineering materials. 26.2024, 4, 26 p., 2300610.

    Research output: Contribution to journal › Review article › peer-review

  8. E-pub ahead of print

    Effect of wire-arc directed energy deposition on the microstructural formation and age-hardening response of the Mg-9Al-1Zn (AZ91) alloy

    Graf, G., Spörk-Erdely, P., Maawad, E., Burtscher, M., Kiener, D., Clemens, H. & Klein, T., 30 Jun 2023, (E-pub ahead of print) In: Journal of magnesium and alloys. 2023, 11, p. 1944-1958 15 p.

    Research output: Contribution to journal › Article › Research › peer-review

  9. E-pub ahead of print

    On the stability of Ti(Mn,Al)2 C14 Laves phase in an intermetallic Ti–42Al–5Mn alloy

    Graf, G., Seyffertitz, M., Spörk-Erdely, P., Clemens, H., Stark, A., Hatzenbichler, L., Holec, D., Burtscher, M., Kiener, D., Li, X. & Liu, K., 11 Jun 2023, (E-pub ahead of print) In: Intermetallics. 2023, 161, 9 p., 107962.

    Research output: Contribution to journal › Article › Research › peer-review

  10. Published

    Glide and mixed climb dislocation velocity in γ-TiAl investigated by in-situ transmission electron microscopy

    Galy, B., Musi, M., Hantcherli, M., Molénat, G., Couret, A., Spörk-Erdely, P., Clemens, H. & Monchoux, J.-P., 15 Apr 2023, In: Scripta materialia. 228.2023, 15 April, 8 p., 115333.

    Research output: Contribution to journal › Article › Research › peer-review

  11. Published

    Phase stability of TiAl-based BCC high entropy alloys

    Hatzenbichler, L., Zeisl, S., Clemens, H. & Holec, D., 7 Apr 2023, In: Intermetallics. 158.2023, July, 9 p., 107893.

    Research output: Contribution to journal › Article › Research › peer-review

  12. Published

    A TEM study of a dislocations in the ßo phase of an intermetallic TNM-TiAl alloy

    Molénat, G., Monchoux, J.-P., Musi, M., Spörk-Erdely, P., Clemens, H. & Couret, A., 15 Mar 2023, In: Scripta materialia. 226.2023, 15 March, 6 p., 115247.

    Research output: Contribution to journal › Article › Research › peer-review

  13. Published

    Influence of focus offset on the microstructure of an intermetallic γ-TiAl based alloy produced by electron beam powder bed fusion

    Ghibaudo, C., Wartbichler, R., Marchese, G., Clemens, H., Ugues, D. & Biamino, S., 3 Mar 2023, In: Journal of manufacturing processes. 89.2023, 3 March, p. 132-141 10 p.

    Research output: Contribution to journal › Article › Research › peer-review

  14. Published

    Effect of boron doping on grain boundary cohesion in technically pure molybdenum investigated via meso-scale three-point-bending tests

    Jakob, S., Hohenwarter, A., Lorich, A., Knabl, W., Pippan, R., Clemens, H. & Maier-Kiener, V., 2 Mar 2023, In: International journal of refractory metals & hard materials. 113.2023, June, 4 p., 106173.

    Research output: Contribution to journal › Article › Research › peer-review

  15. Published

    Enhancing mechanical properties of ultrafine-grained tungsten for fusion applications

    Wurmshuber, M., Doppermann, S., Wurster, S., Jakob, S., Balooch, M., Alfreider, M., Schmuck, K. S., Bodlos, R., Romaner, L., Hosemann, P., Clemens, H., Maier-Kiener, V. & Kiener, D., Feb 2023, In: International journal of refractory metals & hard materials. 111.2023, February, 7 p., 106125.

    Research output: Contribution to journal › Article › Research › peer-review

  16. Published

    Evolution of nano-pores during annealing of technically pure molybdenum sheet produced from different sintered formats

    Jakob, S., Lorich, A., Knabl, W., Stark, A., Staron, P., Clemens, H. & Spörk-Erdely, P., Jan 2023, In: International journal of refractory metals & hard materials. 110.2023, January, 7 p., 106032.

    Research output: Contribution to journal › Article › Research › peer-review

  17. Published

    A comprehensive study on the metallographic preparation of W-Re samples for high resolution electron-based microscopy

    Sommerauer, M., Clemens, H., Maier-Kiener, V. & Siller, M., 2023, Pract. Metallograp.. Vol. 60. p. 171-186

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

  18. Published

    Ballistic tests on hot-rolled Ti-6Al-4V plates: Experiments and numerical approaches

    Janda, A., Ralph, B., Demarty, Y., Sorger, M., Ebenbauer, S., Prestl, A., Siller, I., Stockinger, M. & Clemens, H., 2023, In: Defence Technology. 26.2023, August, p. 39-53 15 p.

    Research output: Contribution to journal › Article › Research › peer-review

  19. 2022
  20. Published

    Laser powder bed fusion of intermetallic titanium aluminide alloys using a novel process chamber heating system: A study on feasibility and microstructural optimization for creep performance

    Wartbichler, R., Maiwald-Immer, T., Pürstl, F. & Clemens, H., 5 Dec 2022, In: Metals : open access journal . 12.2022, 12, 23 p., 2087.

    Research output: Contribution to journal › Article › Research › peer-review

  21. E-pub ahead of print

    On the Temperature-Induced Equilibration of Phase Distribution and Microstructure in a Gas-Atomized Titanium Aluminide Powder

    Musi, M., Clemens, H., Stark, A. & Spörk-Erdely, P., 26 Nov 2022, (E-pub ahead of print) In: Advanced engineering materials. 25.2023, 6, 6 p., 2201242.

    Research output: Contribution to journal › Article › Research › peer-review

  22. Published

    Publisher Correction: In situ fracture observations of distinct interface types within a fully lamellar intermetallic TiAl alloy (Journal of Materials Research, (2021), 36, 12, (2465-2478), 10.1557/s43578-020-00088-z)

    Burtscher, M., Alfreider, M., Schmuck, K. S., Clemens, H., Mayer, S. & Kiener, D., 14 Nov 2022, In: Journal of Materials Research. 37.2021, p. 3855 1 p.

    Research output: Contribution to journal › Comment/debate › peer-review

  23. Published

    Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering

    Musi, M., Deshayes, C., Molénat, G., Toualbi, L., Galy, B., Spörk-Erdely, P., Hantcherli, M., Monchoux, J.-P., Thomas, M., Clemens, H. & Couret, A., 8 Nov 2022, In: Metals : open access journal . 12.2022, 11, 22 p., 1915.

    Research output: Contribution to journal › Article › Research › peer-review

  24. E-pub ahead of print

    The effect of zirconium on the Ti-(42-46 at.%)Al system

    Musi, M., Kardos, S., Hatzenbichler, L., Holec, D., Stark, A., Allen, M., Güther, V., Clemens, H. & Spörk-Erdely, P., 2 Oct 2022, (E-pub ahead of print) In: Acta materialia. 241.2022, December, 13 p., 118414.

    Research output: Contribution to journal › Article › Research › peer-review

  25. E-pub ahead of print

    Plasticity and brittleness of the ordered βo phase in a TNM-TiAl alloy

    Molénat, G., Galy, B., Musi, M., Toualbi, L., Thomas, M., Clemens, H., Monchoux, J.-P. & Couret, A., 6 Sept 2022, (E-pub ahead of print) In: Intermetallics. 151.2022, December, 11 p., 107653.

    Research output: Contribution to journal › Article › Research › peer-review

  26. E-pub ahead of print

    In-situ high-temperature EBSD characterization during a solution heat treatment of hot-rolled Ti-6Al-4V

    Janda, A., Ebenbauer, S., Prestl, A., Siller, I., Clemens, H. & Spörk-Erdely, P., 8 Aug 2022, (E-pub ahead of print) In: Materials characterization. 192.2022, October, 12 p., 112207.

    Research output: Contribution to journal › Article › Research › peer-review

  27. Published

    How Si affects the microstructural evolution and phase transformations of intermetallic 𝛾-TiAl based alloys

    Musi, M., Galy, B., Stark, A., Schell, N., Hantcherli, M., Monchoux, J.-P., Couret, A., Clemens, H. & Spörk-Erdely, P., 12 Jun 2022, In: Materialia. 24.2022, August, 11 p., 101475.

    Research output: Contribution to journal › Article › Research › peer-review

  28. E-pub ahead of print

    Revealing dynamic processes in laser powder bed fusion with in situ X-ray diffraction at PETRA III

    Krohmer, E., Schmeiser, F., Wahlmann, B., Rosigkeit, J., Graf, G., Spörk-Erdely, P., Clemens, H., Staron, P., Körner, C., Reimers, W. & Uhlmann, E., 10 Jun 2022, (E-pub ahead of print) In: Review of scientific instruments. 93.2022, 6, 14 p., 065104.

    Research output: Contribution to journal › Article › Research › peer-review

  29. Published

    Microstructure Evolution of a New Precipitation-Strengthened Fe–Al–Ni–Ti Alloy down to Atomic Scale

    Godor, F. R., Palm, M., Liebscher, C., Stein, F., Turk, C., Leitner, K., Rashkova, B. & Clemens, H., 26 May 2022, In: Metals : open access journal . 12.2022, 6, 16 p., 906.

    Research output: Contribution to journal › Article › Research › peer-review

  30. Published

    Quench rate sensitivity of age-hardenable Al-Zn-Mg-Cu alloys with respect to the Zn/Mg ratio: An in situ SAXS and HEXRD study

    Graf, G., Spörk-Erdely, P., Staron, P., Stark, A., Mendez Martin, F., Clemens, H. & Klein, T., 1 Apr 2022, In: Acta materialia. 227.2022, 1 April, 12 p., 117727.

    Research output: Contribution to journal › Article › Research › peer-review

  31. Published

    Phase transformations and phase stability in the Ti–44 at.%Al–(0–7 at.%) Mo system

    Musi, M., Clemens, H., Stark, A., Staron, P. & Spörk-Erdely, P., Apr 2022, In: Intermetallics. 143.2022, April, 9 p., 107484.

    Research output: Contribution to journal › Article › Research › peer-review

  32. Published

    On the existence of orthorhombic martensite in a near-α titanium base alloy used for additive manufacturing

    Fleißner-Rieger, C., Tunes, M. A., Gammer, C., Jörg, T., Pfeifer, T., Musi, M., Mendez Martin, F. & Clemens, H., 15 Mar 2022, In: Journal of alloys and compounds. 897.2022, 15 March, 10 p., 163155.

    Research output: Contribution to journal › Article › Research › peer-review

  33. Published

    Formation and evolution of precipitates in an additively manufactured near-α titanium base alloy

    Fleißner-Rieger, C., Schönmaier, H., Musi, M., Stadler, M., Gschiel, H., Turk, C., Pfeifer, T. & Clemens, H., Mar 2022, In: Materialia. 21.2022, March, 6 p., 101366.

    Research output: Contribution to journal › Article › Research › peer-review

  34. Published

    Optimization of the post-process heat treatment strategy for a Near-α Titanium base alloy produced by laser powder bed fusion

    Fleißner-Rieger, C., Pfeifer, T., Turk, C. & Clemens, H., 28 Jan 2022, In: Materials. 15.2022, 3, p. 1-14 14 p., 1032.

    Research output: Contribution to journal › Article › Research › peer-review

  35. Published

    In-situ observation of the phase evolution during an electromagnetic-assisted sintering experiment of an intermetallic γ -TiAl based alloy

    Musi, M., Galy, B., Monchoux, J.-P., Couret, A., Clemens, H. & Mayer, S., 1 Jan 2022, In: Scripta materialia. 206.2022, 1 January, 4 p., 114233.

    Research output: Contribution to journal › Article › Research › peer-review

  36. Published

    Effect of the wire and arc additive manufacturing process on microstructure and aging behavior of a magnesium alloy studied by HEXRD

    Graf, G., Klein, T., Maawad, E., Burtscher, M., Kiener, D., Clemens, H. & Spörk-Erdely, P., 2022.

    Research output: Contribution to conference › Poster › Research

  37. Published

    Microstructural adjustment of hot-rolled Ti–6Al–4V based on a CCT diagram

    Janda, A., Ebenbauer, S., Prestl, A., Siller, I. & Clemens, H., 2022, In: Materials science and technology. 38.2022, 13, p. 957-964 8 p.

    Research output: Contribution to journal › Article › Research › peer-review

  38. Published

    On the preparation of W-Re conversion layers for highresolution electron microscopy based studies

    Sommerauer, M., Siller, M., Gottlieb, H., Clemens, H. & Maier-Kiener, V., 2022.

    Research output: Contribution to conference › Poster › Research

  39. Published

    Study of the phase transformation behavior of a γ-TiAl based alloy during an adapted spark plasma sintering process

    Musi, M., Galy, B., Monchoux, J.-P., Couret, A., Clemens, H. & Spörk-Erdely, P., 2022.

    Research output: Contribution to conference › Poster › Research

  40. 2021
  41. Published

    How electron beam melting tailors the Al-sensitive microstructure and mechanical response of a novel process-adapted y-TiAl based alloy

    Wimler, D., Käsznar, K., Musi, M., Breuning, C., Markl, M., Keckes, J., Clemens, H., Körner, C. & Mayer, S., 15 Dec 2021, In: Materials and Design. 212.2021, 15 December, 13 p., 110187.

    Research output: Contribution to journal › Article › Research › peer-review

  42. Published

    Effects of tungsten alloying and fluorination on the oxidation behavior of intermetallic titanium aluminides for aerospace applications

    Donchev, A., Mengis, L., Couret, A., Mayer, S., Clemens, H. & Galetz, M., Dec 2021, In: Intermetallics. 139.2021, December, 14 p., 107270.

    Research output: Contribution to journal › Article › Research › peer-review

  43. Published

    Grain boundary segregation in Ni-base alloys: A combined atom probe tomography and first principles study

    Ebner, A., Jakob, S., Clemens, H., Pippan, R., Maier-Kiener, V., He, S., Ecker, W., Scheiber, D. & Razumovskiy, V. I., Dec 2021, In: Acta materialia. 221.2021, December, 10 p., 117354.

    Research output: Contribution to journal › Article › Research › peer-review

  44. Published

    On the Formation Mechanism of Banded Microstructures in Electron Beam Melted Ti–48Al–2Cr–2Nb and the Design of Heat Treatments as Remedial Action

    Wartbichler, R., Clemens, H., Mayer, S., Ghibaudo, C., Rizza, G., Galati, M., Iuliano, L., Biamino, S. & Ugues, D., Dec 2021, In: Advanced engineering materials. 23.2021, 12, 22 p., 2101199.

    Research output: Contribution to journal › Article › Research › peer-review

  45. Published

    Microstructure evolution induced by the intrinsic heat treatment occurring during wire-arc additive manufacturing of an Al-Mg-Zn-Cu crossover alloy

    Klein, T., Graf, G., Staron, P., Stark, A., Clemens, H. & Spörk-Erdely, P., 15 Nov 2021, In: Materials letters. 303.2021, 15 November, 4 p., 130500.

    Research output: Contribution to journal › Article › Research › peer-review

  46. Published

    Rate-depending plastic deformation behaviour in a nickel-base alloy under hydrogen influence

    Ebner, A., Plesiutschnig, E., Clemens, H., Pippan, R. & Maier-Kiener, V., 3 Nov 2021, In: International Journal of Hydrogen Energy . 46.2021, 76, p. 38132-38143 12 p.

    Research output: Contribution to journal › Article › Research › peer-review

  47. Published

    Microstructure and mechanical properties of novel TiAl alloys tailored via phase and precipitate morphology

    Wimler, D., Lindemann, J., Kremmer, T., Clemens, H. & Mayer, S., Nov 2021, In: Intermetallics. 138.2021, November, 10 p., 107316.

    Research output: Contribution to journal › Article › Research › peer-review

  48. Published

    On the evolution of banded microstructures in an electron beam melted Ti-48Al-2Cr-2Nb alloy

    Wartbichler, R., Clemens, H., Mayer, S., Ghibaudo, C., Rizza, G., Galati, M., Iuliano, L., Biamino, S. & Ugues, D., 5 Oct 2021.

    Research output: Contribution to conference › Poster › Research

  49. Published

    Electrons meet alloy development: A γ-TiAl-based alloy showcase

    Holec, D., Abdoshahi, N., Gehringer, D., Hatzenbichler, L., Sakic, A. & Clemens, H., 18 Sept 2021, In: Advanced engineering materials. 24.2022, 14 p., 2100977.

    Research output: Contribution to journal › Article › Research › peer-review

  50. Published

    An atomistic view on Oxygen, antisites and vacancies in the γ-TiAl phase

    Razumovskiy, V. I., Ecker, W., Wimler, D., Fischer, F.-D., Appel, F., Mayer, S. & Clemens, H., Sept 2021, In: Computational materials science. 197.2021, September, 8 p., 110655.

    Research output: Contribution to journal › Article › Research › peer-review

  51. Published

    Influence of Nb on Ti diffusion in γ-TiAl intermetallics studied by mechanical spectroscopy

    Ibanez-Perez, J., No, M. L., Oehring, M., Clemens, H. & San Juan, J. M., 25 Jun 2021, In: Journal of alloys and compounds. 867.2021, June, 8 p., 158880.

    Research output: Contribution to journal › Article › Research › peer-review

  52. E-pub ahead of print

    In Situ Investigation of the Rapid Solidification Behavior of Intermetallic γ-TiAl-Based Alloys Using High-Energy X-Ray Diffraction

    Graf, G., Rosigkeit, J., Krohmer, E., Staron, P., Krenn, R., Clemens, H. & Spörk-Erdely, P., 23 Jun 2021, (E-pub ahead of print) In: Advanced engineering materials. 23.2021, 11, 7 p., 2100557 .

    Research output: Contribution to journal › Article › Research › peer-review

  53. Published

    Local-probe based electrical characterization of a multiphase intermetallic γ-TiAl based alloy

    Kratzer, M., Huszar, M., Tengg, L. M., Billovits, T., Kaufmann, B., Supancic, P., Clemens, H., Mayer, S. & Teichert, C., 26 May 2021, In: Journal of applied physics. 129.2021, 20, 205107.

    Research output: Contribution to journal › Article › Research › peer-review

  54. Published

    Assessment of grain boundary cohesion of technically pure and boron micro-doped molybdenum via meso-scale three-point-bending experiments

    Jakob, S., Hohenwarter, A., Lorich, A., Knabl, W., Pippan, R., Clemens, H. & Maier-Kiener, V., 24 May 2021, In: Materials and Design. 207.2021, September, 8 p., 109848.

    Research output: Contribution to journal › Article › Research › peer-review

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