caa a22 4500 445844027 CHVBK 20180317145353.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s11085-010-9221-7 doi (NATIONALLICENCE)springer-10.1007/s11085-010-9221-7 Influence of Aluminum and Rhenium on the Isothermal Oxidation Behavior of CoNiCrAlY Alloys [Elektronische Daten] [H. Lan, P. Hou, Z.-G. Yang, Y.-D. Zhang, C. Zhang] The oxidation behavior of a Co32Ni21Cr8Al0.6Y (wt%) alloy with and without the addition of 3.5wt% rhenium, 2wt% aluminum or a combination of the two was investigated at 1000°C. Results showed that increasing the Al content from 8 to 10wt% led to an increase of the alloy β-phase, but did not affect the oxidation behavior. Re addition induced (Cr,Re,Y)-rich phase to precipitate in the alloy, accelerated the θ- to α-alumina transformation, reduced the oxidation rate and enhanced the rate of alloy Al diffusion. Adding both Al and Re further improved the oxidation behavior by promoting the development of the external alumina scale and suppressing the formation of Ni, Co containing spinel. This alloy also showed the largest reduction of oxidation rate and emerged to be the most beneficial. A continuous Cr-Re rich layer was observed at the oxide/alloy interface of the Re, Al containing alloy after longer oxidation times, but this layer is not expected to affect the continued growth of the alumina scale. Springer Science+Business Media, LLC, 2010 Isothermal oxidation nationallicence Aluminum nationallicence Rhenium nationallicence CoNiCrAlY alloy nationallicence Lan H. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut Hou P. Materials Sciences Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA aut Yang Z.-G State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut Zhang Y.-D State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut Zhang C. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut Oxidation of Metals Springer US; http://www.springer-ny.com 75/1-2(2011-02-01), 77-92 0030-770X 75:1-2<77 2011 75 11085 https://doi.org/10.1007/s11085-010-9221-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11085-010-9221-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lan H. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Hou P. Materials Sciences Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Yang Z.-G State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Y.-D State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Zhang C. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, 100084, Beijing, People's Republic of China aut NATIONALLICENCE 773 0- Oxidation of Metals Springer US; http://www.springer-ny.com 75/1-2(2011-02-01), 77-92 0030-770X 75:1-2<77 2011 75 11085 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer