| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498556 | Scripta Materialia | 2014 | 4 Pages |
Abstract
The microstructure evolution and room temperature fracture toughness of NiAl–Cr(Mo)–(Hf,Dy)–4Fe alloy during heat treatment have been investigated. After heat treatment (1250 °C), the NiAl and Cr(Mo) phases become coarse, and a local dissolution occurs in Cr(Mo) lamellae. Simultaneously, fine Hf solid solution appears at the NiAl/Cr(Mo) phase interface. Moreover, the addition of Fe can improve the fracture toughness of NiAl–Cr(Mo)–(Hf,Dy) alloy, and heat treatment can enhance fracture toughness further. The relevant toughness mechanism is also discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lei Wang, Jun Shen, Zhao Shang, Hengzhi Fu,