Zobrazeno 1 - 10
of 466
pro vyhledávání: '"Helmut Clemens"'
Autor:
Alexander Janda, Benjamin James Ralph, Yaël Demarty, Marcel Sorger, Stefan Ebenbauer, Aude Prestl, Ingo Siller, Martin Stockinger, Helmut Clemens
Publikováno v:
Defence Technology, Vol 26, Iss , Pp 39-53 (2023)
Superior ballistic performance and the lightweight character of Ti alloys are considered as main reasons for their use in armour applications against a broad spectrum of ballistic threats, e.g. bullet, fragment or blast impact. Because dynamic loadin
Externí odkaz:
https://doaj.org/article/593e3c43824a478e891b6c95108eb1d3
Autor:
David Wimler, Katharina Käsznar, Michael Musi, Christoph Breuning, Matthias Markl, Jozef Keckes, Helmut Clemens, Carolin Körner, Svea Mayer
Publikováno v:
Materials & Design, Vol 212, Iss , Pp 110187- (2021)
Additive manufacturing of lightweight intermetallic γ-TiAl based alloys combines process-related freedom of design with material-specific excellent high-temperature properties. Nevertheless, where locally melting the powder by an electron beam, ther
Externí odkaz:
https://doaj.org/article/c60c24c32ce44bfb8fe9385c24b41e10
Publikováno v:
Metals, Vol 12, Iss 12, p 2087 (2022)
A laser powder bed fusion process operating at elevated temperatures is introduced capable of fabricating crack-free and dense intermetallic titanium aluminide alloy specimens as well as demonstrator components using a base plate heating up to 900 °
Externí odkaz:
https://doaj.org/article/d398327297da439d8f7c55e9ee1e669b
Autor:
Michael Musi, Christophe Deshayes, Guy Molénat, Louise Toualbi, Benjamin Galy, Petra Spoerk-Erdely, Muriel Hantcherli, Jean-Philippe Monchoux, Marc Thomas, Helmut Clemens, Alain Couret
Publikováno v:
Metals, Vol 12, Iss 11, p 1915 (2022)
This work presents a study of the microstructure and mechanical properties of a TNM+ alloy (Ti-43.5Al-4Nb-1Mo-0.1B-0.3C-0.3Si, in at.%) densified by Spark Plasma Sintering (SPS), in comparison to the as-SPSed TNM alloy, which contains neither carbon
Externí odkaz:
https://doaj.org/article/50bfd85adf7344b8b8931f71667a904e
Autor:
Flora Godor, Martin Palm, Christian H. Liebscher, Frank Stein, Christoph Turk, Katharina Leitner, Boryana Rashkova, Helmut Clemens
Publikováno v:
Metals, Vol 12, Iss 6, p 906 (2022)
Ferritic materials consisting of a disordered matrix and a significant volume fraction of ordered intermetallic precipitates have recently gained attention due to their favorable properties regarding high-temperature applicability. Alloys strengthene
Externí odkaz:
https://doaj.org/article/c860121632fa468985c9dda7be6d7d1d
Publikováno v:
Materials & Design, Vol 189, Iss , Pp - (2020)
Thermally activated deformation mechanisms in three different W-Re alloys were investigated by performing high temperature nanoindentation experiments up to 800 °C. With increasing Re content the athermal hardness increases, while the temperature-de
Externí odkaz:
https://doaj.org/article/7366d9d4ae4840b7bb4d6fd70c41309f
Publikováno v:
Materials, Vol 15, Iss 3, p 1032 (2022)
During the last decades, titanium alloys have been of great interest for lightweight applications due to their high strength in combination with a low material density. Current research activities focus on the investigation of near-α titanium alloys
Externí odkaz:
https://doaj.org/article/fa207668bff948b488bd7c202770adf3
Publikováno v:
Materials, Vol 14, Iss 4, p 727 (2021)
Intermetallic γ-TiAl-based alloys are lightweight materials for high-temperature applications, e.g., in the aerospace and automotive industries. They can replace much heavier Ni-based alloys at operating temperatures up to 750 °C. Advanced variants
Externí odkaz:
https://doaj.org/article/a6d6b57b5b124fdea2284c5cea732c4c
Autor:
Michael Burtscher, Thomas Klein, Janny Lindemann, Oliver Lehmann, Holger Fellmann, Volker Güther, Helmut Clemens, Svea Mayer
Publikováno v:
Materials, Vol 13, Iss 21, p 4720 (2020)
Requirements and strict regulations for high-performance racing applications involve the use of new and innovative lightweight structural materials. Therefore, intermetallic γ-TiAl-based alloys enable new opportunities in the field due to their lowe
Externí odkaz:
https://doaj.org/article/3594de2038ca4f259a4149d3ebc7907b
Autor:
Leonhard Hitzler, Stephan Hafenstein, Francisca Mendez Martin, Helmut Clemens, Enes Sert, Andreas Öchsner, Markus Merkel, Ewald Werner
Publikováno v:
Materials, Vol 13, Iss 3, p 720 (2020)
Laser powder-bed fusion (LPBF) has significantly gained in importance and has become one of the major fabrication techniques within metal additive manufacturing. The fast cooling rates achieved in LPBF due to a relatively small melt pool on a much la
Externí odkaz:
https://doaj.org/article/911fe722a21e4db19e78ac351474bf88