Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Bojin Qi"'
Autor:
Hao Zhong, Bojin Qi, Zewu Qi, Caiyou Zeng, Zihao Jiang, Yubin Zhou, Hongwei Li, Ruize Zhang, Baoqiang Cong
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 910-918 (2024)
Al-3.4Mg-1.7Si alloy single-pass and multi-layer thin wall components were fabricated with double wires + arc additive manufacturing procedure. Heat treatment was performed to further process the component. The microstructure and mechanical propertie
Externí odkaz:
https://doaj.org/article/a9b047c00479421db9463b43d762e59a
Autor:
Yubin Zhou, Zewu Qi, Baoqiang Cong, Zihao Jiang, Xinyi Cai, Hongwei Li, Jiaqi Zhang, Chaofang Dong, Xing He, Sanbao Lin, Xiaoyu Cai, Bojin Qi
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
WADED Al-Mg and Al-Mg-Sc-Zr aluminium alloy thin-wall components were produced. Heat treatment (350°C aging for 4 h) was further conducted. The effects of Sc/Zr addition on porosity, microstructure, mechanical properties and corrosion behaviour were
Externí odkaz:
https://doaj.org/article/036b6988e1b347deba524c27c45798ec
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 6225-6263 (2023)
The further developments of additive manufacturing (AM) provides a possibility for Ti6Al4V and its functionally graded materials (FGMs), but limits further applications due to its low ductility, low microhardness and poor wear resistance. The key lie
Externí odkaz:
https://doaj.org/article/fc3a8f0030bd4af8883c9a8be3eed14a
Autor:
Yipeng Wang, Hong Li, Zhuoxin Li, Yu Zhang, Jian Qin, Guangyu Chen, Bojin Qi, Caiyou Zeng, Baoqiang Cong
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 3048-3061 (2023)
The increasing demand for achieving high-efficiency and high-quality medium-thick aluminium alloy welded structures, especially for large scale aerospace components, presents an urgent challenge to the conventional TIG arc welding process. This work
Externí odkaz:
https://doaj.org/article/54f295799d804d79847a3db9242a13ba
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 3391-3407 (2022)
Based on self-developed ultra high frequency pulse Metal-Inert Gas Welding (UFP-MIG) power source, the ultra-high frequency pulse (UFP) current was studied as an effective way for improving the microstructure and properties of 2219 aluminum alloy joi
Externí odkaz:
https://doaj.org/article/a3aae7ddd3c64814bd2a0638007b1d80
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 32, Iss 1, Pp 1-7 (2019)
Abstract Aluminum–Lithium (Al–Li) alloy is a topic of great interest owing to its high strength and light weight, but there are only a few applications of Al–Li alloy in wire + arc additive manufacturing (WAAM) process. To identify its feasibil
Externí odkaz:
https://doaj.org/article/78bc068d9a60420bad8a15bf98775549
Publikováno v:
Crystals, Vol 12, Iss 5, p 586 (2022)
In order to study the influence of a novel current waveform control method of ultrasonic-frequency pulse (UFP) on arc behaviour, metal transfer process and the welds formation, monitoring system and image processing algorithms were employed for extra
Externí odkaz:
https://doaj.org/article/d9f64371ae8147dd97abbc6c1acb1012
Autor:
Fei Li, Bojin Qi, Yongxin Zhang, Wei Guo, Peng Peng, Hepeng Zhang, Guangzhi He, Dezhi Zhu, Jianfeng Yan
Publikováno v:
Metals, Vol 11, Iss 2, p 346 (2021)
The steep thermal gradient and complicated thermal cycle occur in the fabrication of Ti6Al4V alloy during laser solid forming (LSF). That leads to obvious anisotropic mechanical properties and requires essential heat treatments to improve its perform
Externí odkaz:
https://doaj.org/article/931b5e9b420f498db75d8e094b3b769b
Publikováno v:
Applied Sciences, Vol 7, Iss 5, p 485 (2017)
Tensile properties optimization of AA 5456 aluminum alloy was carried out with hybrid ultrasonic frequency pulsed variable polarity gas tungsten arc wending (HPVP-GTAW). An orthogonal method was employed to conduct the experiments, and the tensile pr
Externí odkaz:
https://doaj.org/article/91f79bb73399466cbf3d00986c2f50d1
Publikováno v:
Applied Sciences, Vol 7, Iss 3, p 275 (2017)
In order to build a better understanding of the relationship between depositing mode and porosity, microstructure, and properties in wire + arc additive manufacturing (WAAM) 2319-Al components, several Al-6.3%Cu deposits were produced by WAAM techniq
Externí odkaz:
https://doaj.org/article/fe66da9b1bb34706a61e7936fd58e877