Zobrazeno 1 - 10
of 344
pro vyhledávání: '"PENGWAN CHEN"'
Publikováno v:
Defence Technology, Vol 33, Iss , Pp 114-124 (2024)
The shock-induced reaction mechanism and characteristics of Ni/Al system, considering an Al nanoparticle-embedded Ni single crystal, are investigated through molecular dynamics simulation. For the shock melting of Al nanoparticle, interfacial crystal
Externí odkaz:
https://doaj.org/article/d846d0696c484c7588de2930ef1aaa30
Autor:
Yuanbo Sun, Jianning Gou, Cheng Wang, Qiang Zhou, Rui Liu, Pengwan Chen, Tonghui Yang, Xiang Zhao
Publikováno v:
Defence Technology, Vol 32, Iss , Pp 521-528 (2024)
By considering the joint effects of the Kelvin–Helmholtz (KH) and Rayleigh–Taylor (RT) instabilities, this paper presents an interpretation of the wavy patterns that occur in explosive welding. It is assumed that the elasticity of the material at
Externí odkaz:
https://doaj.org/article/ffcc23fc2e2f48afbe1282dfe6dfa9e0
Publikováno v:
Defence Technology, Vol 32, Iss , Pp 242-253 (2024)
Formation behaviors of rod-like reactive shaped charge penetrator (RRSCP) and their effects on damage capability are investigated by experiments and numerical simulations. The pulsed X-ray technology and a spaced aluminum/steel plate with the thickne
Externí odkaz:
https://doaj.org/article/620173fa7b744c659d79e6b8370e644b
Publikováno v:
Defence Technology, Vol 31, Iss , Pp 211-229 (2024)
A series of ballistic experiments were performed to investigate the damage behavior of high velocity reactive material projectiles (RMPs) impacting liquid-filled tanks, and the corresponding hydrodynamic ram (HRAM) was studied in detail. PTFE/Al/W RM
Externí odkaz:
https://doaj.org/article/0767f289f30c4bbaaee39271f85ced5e
Autor:
Yansong Guo, Rui Liu, Chun Ran, Ali Arab, Hengheng Geng, Maoguo Gao, Baoqiao Guo, Qiang Zhou, Pengwan Chen
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 2819-2830 (2024)
Steel-like density HfZrTiTa0.2Al0.8 high entropy alloy (HEA) with a density of 7.78 g/cm3 is designed and fabricated as a novel energetic structural material (ESM). The microstructure, thermal analysis, compressive mechanical properties, ignition and
Externí odkaz:
https://doaj.org/article/c6941a776ec340ceb5a391c8c606f945
Autor:
Yansong Guo, Bin Jia, Yong Du, Xuan Wu, Hang Fan, Gen Li, Chenguang Wang, Changqing Zhou, Tianze Gao, Yanxin Ge, Maoguo Gao, Qiang Zhou, Pengwan Chen
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 248-261 (2023)
Large-depth and multiscale gradient microstructure in dual-phase Al0.6CoCrFeNi high entropy alloy (HEA) were fabricated by explosion hardening (EH) technique. The gradient microstructure evolution was investigated in detail. The microhardness distrib
Externí odkaz:
https://doaj.org/article/4ca58109ac9644bfbe7e5a8fb1596542
Publikováno v:
Materials, Vol 17, Iss 16, p 4034 (2024)
In actual atmospheric environments, Ni/Al composites subjected to high-velocity impact will undergo both intermetallic reaction and oxidative combustion simultaneously, and the coupling of mechanical and multiple chemical processes leads to extremely
Externí odkaz:
https://doaj.org/article/bd77d803296e47f4bfcd51f3e48149e5
Autor:
Qiang Zhou, Honghong Lu, Xuke Lan, Yansong Guo, Kaiyuan Liu, Guangyan Huang, Bin Jia, Pengwan Chen
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 6472-6491 (2023)
Explosive welding interface commonly show wavy shapes, makes microstructure anisotropic. The effects of microstructure and different loading directions on shear properties of bonding interfaces at dynamic loading conditions are still unclear. In this
Externí odkaz:
https://doaj.org/article/8a4361f72de746528f723978425a2905
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 5003-5020 (2023)
The discrete waterjet (DWJ) offers advantages in material removal because of the cyclic impact loading, but the specific removal characteristics and corresponding mechanisms have not been yet fully understood. Therefore, the flow field and material r
Externí odkaz:
https://doaj.org/article/b5f7503aff164f49ae334d10825cd165
Autor:
Jing Xie, Yang Qiao, Zu'an Wang, Yuanshen Qi, Qingfeng Xu, Keren Shemtov-Yona, Pengwan Chen, Daniel Rittel
Publikováno v:
Applied Surface Science Advances, Vol 19, Iss , Pp 100548- (2024)
Pure waterjet surface treatment without abrasive particles has a promising application in the biomedical field, because it induces compressive residual stresses on a metal surface and never leaves the tiny hard particles. In this work, the influence
Externí odkaz:
https://doaj.org/article/04dd732fd5464665a7bd2494b3d31aba