| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications II
|
| Presentation Title |
Effect of Hot Rolling and High Temperature Annealing on the Microstructure and Mechanical Properties of Hot-rolled 90W7Ni3Fe WHA |
| Author(s) |
Md Ershadul Alam, Charles H Henager Jr., Jing Wang, Wahyu Setyawan, G.R. Odette |
| On-Site Speaker (Planned) |
Md Ershadul Alam |
| Abstract Scope |
The 90W7Ni3Fe is a ductile phase (DP) toughened tungsten (W)-based heavy metal alloy (WHA) composite that shows much improved tensile strength, ductility and fracture toughness over monolithic W. The effect of hot rolling (HR), and HR plus annealing on the room temperature (RT) mechanical properties of a 90W7Ni3Fe (by wt%) WHA, at different thickness reductions (0, 62, 74 and 87%) has been explored to take advantage from its deformed brick-and-mortar microstructure. The strength and fracture toughness of HR 90W WHA shows that the 0/87% HR alloys experience highest toughness (KJm ≈ 100 MPa√m) along with stable crack growth. In contrast, the 62/74% HR WHA experience fracture, at a lower elastic KIm (≈ 36 MPa√m). The opposite trend is observed in the microhardness and tensile strength. The 1300ºC/24h anneal homogenizes microstructure, and the RT mechanical properties are nearly the same for all HR 90W WHA. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Mechanical Properties, Other |