- Tytuł:
- Study on Underwater Explosive Welding of Al-Steel Coaxial Pipes
- Autorzy:
-
Yu, Y.
Ma, H.
Zhao, K.
Shen, Z.
Cheng, Y. - Powiązania:
- https://bibliotekanauki.pl/articles/358620.pdf
- Data publikacji:
- 2017
- Wydawca:
- Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
- Tematy:
-
metal-matrix composites
explosive welding
surface ablation
microstructures
bonding interface - Opis:
- In order to solve the aluminum surface ablation issue of Al-Steel bimetallic pipes manufactured by the explosive welding technique, a novel explosive welding system has been designed to weld Al-Steel coaxial pipes. The stand-off distance was chosen according to an empirical formula. A special Explosive Cord with an aluminum coating was used as the explosive. Four experiments were performed using Explosive Cords 1, 2, 3 and 4, respectively. In each experiment, three reliable PVDF (Polyvinylidene Fluoride) piezoelectric film sensors were used to sample the impact pressure between the parent pipe and the flyer pipe along the detonation direction. p-t Curves were obtained at different points on the bimetallic pipe manufactured by Explosive Cord 1. In order to observe the inner surface and to judge the bonding interface, specimens were cut along the axial direction. BSE (Backscattering Electron) images of the interfaces were obtained. According to these pictures from all of the specimens cut along the axial direction, the surface ablation phenomenon has disappeared. The bimetallic pipe manufactured by the new welding system using Explosive Cord 3 has an irregular wavy interface, between micro and small wavy interface, which is one of the best bonding forms.
- Źródło:
-
Central European Journal of Energetic Materials; 2017, 14, 1; 251-265
1733-7178 - Pojawia się w:
- Central European Journal of Energetic Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł