GRAIN BOUNDARY STRENGTHENING PROPERTIES OF TUNGSTEN ALLOYS
Book
·
OSTI ID:1055406
Density functional theory was employed to investigate grain boundary (GB) properties of W alloys. A range of substitutional solutes across the Periodic Table was investigated to understand the behavior of different electronic orbitals in changing the GB cleavage energy in the Σ27a[110]{525} GB. A number of transition metals were predicted to enhance the GB cohesion. This includes Ru, Re, Os, Ir, V, Cr, Mn, Fe, Co, Ti, Hf, Ta and Nb. While lanthanides, s and p elements were tended to cause GB embrittlement.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1055406
- Report Number(s):
- PNNL-SA-89842; 45390; AT6020100
- Resource Relation:
- Related Information: Fusion Reactor Materials Program Semiannual Progress Report for Period Ending June 30, 2012 , 52:82-88
- Country of Publication:
- United States
- Language:
- English
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