Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Wilfried Wallgram"'
Phase fractions, transition and ordering temperatures in TiAl–Nb–Mo alloys: An in- and ex-situ study
Autor:
Laura M. Droessler, Helmut Clemens, Thomas Schmoelzer, Thomas Buslaps, Ian J. Watson, Andrew J Studer, Gerald A. Zickler, Klaus-Dieter Liss, Wilfried Wallgram
Publikováno v:
Intermetallics. 18:1544-1552
Intermetallic γ-TiAl based alloys of the TNM™ alloy family attain their excellent processing characteristics by a high β-phase content present at hot-working temperatures. Subsequent to hot-working the β-phase content is decreased by a heat trea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1df5ba9c808a3b3d5da431c7ca58442
https://doi.org/10.1016/j.intermet.2010.04.008
https://doi.org/10.1016/j.intermet.2010.04.008
Autor:
Thomas C. Hansen, Helmut Clemens, Ian J. Watson, Klaus-Dieter Liss, Thomas Schmoelzer, Mark H Reid, Wilfried Wallgram
Publikováno v:
Advanced Engineering Materials. 11:932-937
In recent times, novel titanium aluminides containing the bcc β-phase at high temperatures are being developed for improved hot-working capabilities, however, predictions of the phase diagrams are merely uncertain. Here we present in-situ neutron st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f1b03556894c0d79ffb6afbf57253bc
https://doi.org/10.1002/adem.200900169
https://doi.org/10.1002/adem.200900169
Publikováno v:
International Journal of Materials Research. 100:1021-1030
The present paper summarizes our progress in establishing a novel production technology for -TiAl components to be used in advanced aircraft engines. In the beginning the main emphasis is put on the design of a -TiAl based alloy which exhibits excell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d30ce5c0ad3067cf002aead29c6bd3e
https://doi.org/10.3139/146.110154
https://doi.org/10.3139/146.110154
Publikováno v:
Advanced Engineering Materials. 10:707-713
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f482eda5de781fd7f395bacbfb534d2c
https://doi.org/10.1002/adem.200800164
https://doi.org/10.1002/adem.200800164
Autor:
Wilfried Smarsly, Helmut Clemens, Rainer Gerling, Volker Güther, Gerald A. Zickler, Klaus-Dieter Liss, Sascha Kremmer, Wilfried Wallgram, Harald F. Chladil
Publikováno v:
Intermetallics. 16:827-833
In a β-stabilized Ti–43Al–4Nb–1Mo–0.1B alloy (composition in atomic percent) the correlation between the occurrence of β-phase and temperature was analyzed experimentally and compared to thermodynamic calculations. Results from in situ high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96498e33ffa9c175689ea4284269f92b
https://doi.org/10.1016/j.intermet.2008.03.008
https://doi.org/10.1016/j.intermet.2008.03.008
Publikováno v:
International Journal of Refractory Metals and Hard Materials. 26:120-126
Coatings of TiN have been deposited by thermal CVD between 850 and 1050 °C and characterized with respect to their microstructure as well as mechanical and tribological properties. X-ray diffraction (XRD) analysis yields the formation of textured fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77281b90da9ccec8e0956c79c586347b
https://doi.org/10.1016/j.ijrmhm.2007.01.010
https://doi.org/10.1016/j.ijrmhm.2007.01.010
Autor:
Martin Kathrein, C. Michotte, Christian Mitterer, M. Penoy, Wilfried Wallgram, Josef Wagner, David Hochauer
Publikováno v:
Surface and Coatings Technology. 201:4247-4252
In this work, Ti–N–B coatings have been deposited by thermal chemical vapor deposition (CVD). The effect of boron varying between 0 and 35.1 at.% on coating structure, mechanical and tribological properties was investigated. The coatings reveal a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d31822d6555918bc7e3efdf5529f203
https://doi.org/10.1016/j.surfcoat.2006.08.071
https://doi.org/10.1016/j.surfcoat.2006.08.071
Autor:
Gopal Das, Wilfried Wallgram, Helmut Clemens, Laura M. Droessler, Thomas Schmoelzer, Limei Cha
Publikováno v:
MRS Proceedings. 1128
The microstructural development of a forged Ti-43Al-4Nb-1Mo-0.1B (in at%) alloy during two-step heat-treatments was investigated and its impact on the tensile ductility at room temperature was analyzed. The investigated material, a so-called TNM™ g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51baf33e481fa49e9fc9f56643bb2911
https://doi.org/10.1557/proc-1128-u03-08
https://doi.org/10.1557/proc-1128-u03-08
Autor:
Wilfried Wallgram, Andreas Otto, Barbara Boeck, Gerald A. Zickler, Thomas Schmoelzer, Helmut Clemens, Laura M. Droessler, Harald Leitner
Publikováno v:
MRS Proceedings. 1128
TNM™ alloys are novel γ-TiAl based alloys which exhibit a high concentration of β-stabilizing elements such as Nb and Mo. Due to the high volume fraction of disordered β-phase these alloys can be hot-die forged under near conventional conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d8ef1aed67e7ca223ec6aa516bc3c7f
https://doi.org/10.1557/proc-1128-u03-06
https://doi.org/10.1557/proc-1128-u03-06
Publikováno v:
Scopus-Elsevier
Because of the small “deformation window” hot-working of γ-TiAl alloys is a complex and difficult task and, therefore, isothermal forming processes are favoured. In order to increase the deformation window a novel Nb and Mo containing γ-TiAl ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df5947892c2c7b20168301056ca177dd
https://doi.org/10.1557/proc-1128-u03-05
https://doi.org/10.1557/proc-1128-u03-05