Effect of rhenium addition on tungsten fuzz formation in helium plasmas

2016 ◽  
Vol 474 ◽  
pp. 99-104 ◽  
Author(s):  
Aneeqa Khan ◽  
Gregory De Temmerman ◽  
Thomas W. Morgan ◽  
Michael B. Ward
Keyword(s):  
2008 ◽  
Vol 56 (7) ◽  
pp. 1609-1618 ◽  
Author(s):  
V. Kindrachuk ◽  
N. Wanderka ◽  
J. Banhart ◽  
D. Mukherji ◽  
D. Del Genovese ◽  
...  
Keyword(s):  

2010 ◽  
Vol 23 (3) ◽  
pp. 370-376 ◽  
Author(s):  
Zhang Yuduo ◽  
Yang Zhigang ◽  
Zhang Chi ◽  
Lan Hao

2010 ◽  
Vol 638-642 ◽  
pp. 2257-2262 ◽  
Author(s):  
Tao Jin ◽  
Wen Zhen Wang ◽  
Xiao Feng Sun ◽  
Zhuang Qi Hu

The effect of rhenium on the microstructure and mechanical properties of single crystal superalloys with a nominal composition of Ni-3Cr-12Co-1Mo-6W-6Al-8Ta-0.1Hf-(0, 2, 4) Re has been studied. With the rise of rhenium content, the size of as-cast  particles becomes smaller. Rhenium addition elevates the incipient melting temperature and slows down the solid solution process. Even after 2000h prolonged aging both at 950°C and 1050°C, no topologically close-packed phase precipitation is found in the three alloys with Re content up to 4%. Re retards the  coarsening and is beneficial to improving the stress rupture life. The deformation mechanisms together with the dislocation configuration have been studied and discussed.


2011 ◽  
Vol 278 ◽  
pp. 539-544 ◽  
Author(s):  
Debashis Mukherji ◽  
Joachim Rösler

Although Ni-base superalloys meet the gas turbine needs of today, they are used very close to their melting range. Demands for applications at higher temperatures are presently met partly through component cooling and application of thermal barrier coatings. However, this approach can not be sustained indefinitely unless the base metal melting temperature is also significantly increased. Rhenium addition can substantially increase the melting point in Co-base alloys and thereby provide a unique opportunity in the development of new alloys for very high temperatures – e.g. for applications at +100°C metal temperature above present day single crystal Ni-base superalloys. The design considerations behind the Co-Re alloy development are presented in this paper. Selected results from the alloy development studies are also presented.


2018 ◽  
Vol 49 (9) ◽  
pp. 4343-4352 ◽  
Author(s):  
J. X. Chang ◽  
D. Wang ◽  
X. G. Liu ◽  
L. H. Lou ◽  
J. Zhang

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