Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Tijun Chen"'
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 8323-8333 (2023)
The as-cast Mg–2Y-0.5Zn-0.5Ni-0.5Co alloy (MYZNC, at%) underwent composite hot working, extrusion and rolling to further improve the mechanical properties, and the corresponding microstructure and mechanical properties were also investigated. The e
Externí odkaz:
https://doaj.org/article/85c33a7c9e2e490e9a4a64076d45edfc
Autor:
Lin Tong, Jing Jiang, Guangli Bi, Zuocheng Xu, Yuandong Li, Tijun Chen, Xiaoru Zhang, Wei Fu, Daqing Fang
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 1442-1453 (2023)
The poor age-hardening response of Mg alloys limited their development and applications. In this study, the age-hardening response of Mg–7Sn alloy has been improved significantly by a 40 MPa compressive stress aging at 220 °C. Phase transition fro
Externí odkaz:
https://doaj.org/article/dc857bafc8874999ba30c82ae23373aa
Autor:
Jing Jiang, Lin Tong, Zuocheng Xu, Guangli Bi, Chi Cao, Yuandong Li, Tijun Chen, Wei Fu, Daqing Fang
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 2601-2611 (2023)
Stress aging is an effective method to improve age-hardening behavior of Mg alloys. In this paper, the stress aging was applied to improve poor age-hardening response of Mg–7Sn alloy. The age-hardening behavior, microstructure evolution and mechani
Externí odkaz:
https://doaj.org/article/bd285844931a420b9719fa0097818814
Autor:
Guangli Bi, Hongsheng Man, Jing Jiang, Yuandong Li, Tijun Chen, Xiaoru Zhang, Daqing Fang, Xiangdong Ding
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 590-605 (2022)
Effects of Zn addition on microstructure and mechanical properties of the extruded Mg97.8Y1.4Co0.8 (at.%, WC) alloy were investigated at room temperature. It was found that the as-cast WC alloy was mainly composed of α-Mg, MgYCo4, Mg3(Co,Y) and 15R-
Externí odkaz:
https://doaj.org/article/e9e6edb20413404aa99365915df24dff
Autor:
Yanghua Liu, Tijun Chen
Publikováno v:
Metals, Vol 13, Iss 4, p 733 (2023)
Taking pure Al (938.15 K) and Al-12Si (858.15 K) melts as two precursors and the Al-8Si alloy as the target alloy, the effect of the standing time after mixing on the microstructure of a mixture during controlled diffusion solidification with simulta
Externí odkaz:
https://doaj.org/article/384ae4340b6f4c67984ad57da0e3b751
Autor:
Pengpeng Pu, Tijun Chen
Publikováno v:
Materials, Vol 15, Iss 19, p 6617 (2022)
Nanocrystalline metals developed based on fine grain strengthening always have an excellent strength, but are accompanied by a drop in ductility. In the past 20 years, substantial efforts have been dedicated to design new microstructures and develop
Externí odkaz:
https://doaj.org/article/ae6c7145e40f48bc9d492ffddec0afba
Publikováno v:
Materials & Design, Vol 191, Iss , Pp - (2020)
A microstructure-based numerical simulation is performed to understand the mechanical properties and fracture of a Ti-Al3Ti core-shell structured particulate reinforced A356 composite ((Ti-Al3Ti)cs/A356). A series of two-dimensional (2D) representati
Externí odkaz:
https://doaj.org/article/ac24ee0cef2d4227be9303c4bc56c0c6
Autor:
Xuezheng Zhang, Tijun Chen
Publikováno v:
Materials & Design, Vol 191, Iss , Pp - (2020)
A bimodal microstructure composed of large primary α-Al phases (PPs) and small secondarily solidified grains (SSGs) is fabricated in 6061 aluminum alloy by powder thixoforming (PTF) method after solution treatment. Artificial aging treatment introdu
Externí odkaz:
https://doaj.org/article/caea8d036044430d8a6af4d1a13b26b1
Publikováno v:
Materials Research, Vol 20, Iss 1, Pp 236-248 (2017)
A novel processing technology for the fabrication of particle reinforced metal matrix composites, powder thixoforming (PTF), was proposed and 6061 Al-based composites reinforced with 10% volume fractions of SiC particles (SiCp) were fabricated. The e
Externí odkaz:
https://doaj.org/article/554f6d7141e442d1bd0a3a38f7a4c4b6
Publikováno v:
Metals, Vol 10, Iss 6, p 715 (2020)
In this work, the effect of drawing pass on the surface layer softening or plasticizing of Q235 steel bar during electrochemical cold drawing (ECD) was studied, as well as cold drawing in air (DIA) for comparison. The results indicate that the soften
Externí odkaz:
https://doaj.org/article/edf0132b15b54e33a3f56fd3aa0e4359