Abstract
| Original language | English |
|---|---|
| Journal | Proceedings of the Risø International Symposium on Materials Science |
| Volume | 33 |
| Pages (from-to) | 201-207 |
| ISSN | 0907-0079 |
| Publication status | Published - 2012 |
| Event | 33rd Risø International Symposium on Materials Science: Nanometals - Status and Perspective - DTU Risø Campus, Roskilde, Denmark Duration: 3 Sep 2012 → 7 Sep 2012 |
Conference
| Conference | 33rd Risø International Symposium on Materials Science |
|---|---|
| Location | DTU Risø Campus |
| Country | Denmark |
| City | Roskilde |
| Period | 03/09/2012 → 07/09/2012 |
Bibliographical note
Proceedings of the 33rd Risø International Symposium on Materials Science : Nanometals - Status and PerspectiveCite this
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Design and characterization of novel precipitation hardenable high Cr Ni-based superalloys. / Bihlet, Uffe; Dahl, Kristian Vinter; Somers, Marcel A. J.
In: Proceedings of the Risø International Symposium on Materials Science, Vol. 33, 2012, p. 201-207.Research output: Contribution to journal › Conference article › Research › peer-review
TY - GEN
T1 - Design and characterization of novel precipitation hardenable high Cr Ni-based superalloys
AU - Bihlet, Uffe
AU - Dahl, Kristian Vinter
AU - Somers, Marcel A. J.
N1 - Proceedings of the 33rd Risø International Symposium on Materials Science : Nanometals - Status and Perspective
PY - 2012
Y1 - 2012
N2 - Among the Ni-based superalloys, Alloy 718 stands apart with the ability to be precipitation hardened after welding, by the slow formation of nano-scale γ’’ (Ni3Nb) particles. This slow formation gives it a very low crack susceptibility, which has made it widely applied since its introduction in the aircraft industry in the 1960’s. Five powder metallurgical Ni-based superalloys containing 35-45 wt % Cr and 4-6 wt % Nb were designed with the aim of maintaining the hardening mechanism found in Alloy 718, while drastically increasing the hot corrosion resistance. The alloys were manufactured and the actual precipitation of γ’’ was verified with TEM. The mechanical properties of the hardened P/M alloys are comparable to those of Alloy 718.
AB - Among the Ni-based superalloys, Alloy 718 stands apart with the ability to be precipitation hardened after welding, by the slow formation of nano-scale γ’’ (Ni3Nb) particles. This slow formation gives it a very low crack susceptibility, which has made it widely applied since its introduction in the aircraft industry in the 1960’s. Five powder metallurgical Ni-based superalloys containing 35-45 wt % Cr and 4-6 wt % Nb were designed with the aim of maintaining the hardening mechanism found in Alloy 718, while drastically increasing the hot corrosion resistance. The alloys were manufactured and the actual precipitation of γ’’ was verified with TEM. The mechanical properties of the hardened P/M alloys are comparable to those of Alloy 718.
KW - Lette stærke materialer til energiformål
M3 - Conference article
VL - 33
SP - 201
EP - 207
JO - Proceedings of the Risø International Symposium on Materials Science
JF - Proceedings of the Risø International Symposium on Materials Science
SN - 0907-0079
ER -