| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7988561 | Intermetallics | 2014 | 5 Pages |
Abstract
Nb-Si alloys have been widely considered as the potential candidate materials for turbine applications. Optimal amounts of B and Si addition to Nb-18Ti-14Si (at%, F1) were identified based on Nb-Ti-Si-B phase diagram. Nb-18Ti-14Si-4.5B (F2) had been obtained desirable (Nb) + T2 eutectic and significantly improved fracture toughness from 7.85 (F1) to 11.98 MPa m1/2. With extra 3Si addition, F3 (Nb-18Ti-17Si-4.5B) consisted of primary T2 and (Nb) + T2 eutectic, it retained comparable fracture toughness of 11.76 MPa m1/2, even excessive amounts of primary T2 do not compromise fracture toughness.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhiping Sun, Xiping Guo, Xiaodong Tian, Liang Zhou,