About this Abstract |
Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
Presentation Title |
Fabrication of NiAl/TiAl-based Gradient Alloys by Additive Sintering |
Author(s) |
Dongjun Wang, Hanwei Ning, Gang Liu |
On-Site Speaker (Planned) |
Hanwei Ning |
Abstract Scope |
In this work, aiming at near-net forming and joining of complex shapes for difficult-to-deform alloys, a novel additive sintering route combined with hot pressing sintering (HPS) and powder compact joining for NiAl/TiAl based gradient alloys has been offered, which can break the technical bottleneck of difficult-to-deform alloys and their gradient alloys. The proposed additive sintering can be realized by reheating and holding the powders on the sintered compact samples under pressure,then the complex-shape components can be prepared by repeating the process. The results show that the samples prepared by additive sintering have well-bonded interfaces and the properties at room and high temperatures of the joining region are almost the same as the non-joined samples. Due to the improvement of plasticity for the previous compact sample during additive sintering, the high temperature tensile plasticity in the direction parallel to the interface of the final product has also been improved. |
Proceedings Inclusion? |
Definite: At-meeting proceedings |