Zobrazeno 1 - 10
of 9 483
pro vyhledávání: '"hot deformation"'
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 3194-3209 (2024)
A deformed superalloy with γ′ content reaching 73% has been designed by ourselves. In this work, the problems of preparation and deformation caused by the high γ′ phase content were solved by the electron beam smelting layered solidification te
Externí odkaz:
https://doaj.org/article/7076973144c94b7fbb677ec72d3b9fa7
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2173-2187 (2024)
Plasma arc additive manufacturing (PAAM) stands out for its remarkable efficient utilization and good performance reliability, making it a highly favored additive manufacturing technique. This study delves into the tensile deformation below δ-solvus
Externí odkaz:
https://doaj.org/article/b779359cf8bb406fbffeb9af5ee35c0b
Autor:
Jun Wu, Congqing Liu, Yong He, Junsong Zhang, Xing Yin, Ke Huang, Baifeng Luan, Jingjing Liao
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2224-2233 (2024)
This study investigates the hot compression behavior of a molybdenum- Rhenium (Mo–Re) alloy, focusing on deformation mechanisms and instability. Utilizing electron backscattered diffraction (EBSD) and transmission electron microscope (TEM), we char
Externí odkaz:
https://doaj.org/article/76561de2ec5a4092ab70d58ec532d651
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 1971-1983 (2024)
To overcome the disadvantage of the Arrhenius constitutive (AC) equation in predicting complex nonlinear flow behaviors, this work employed an artificial neural network (ANN) to introduce a proportional coefficient reflecting changes in softening mec
Externí odkaz:
https://doaj.org/article/4e6a110723ea4cae80989365200e695a
Publikováno v:
Cailiao gongcheng, Vol 52, Iss 8, Pp 169-177 (2024)
The hot deformation behavior and dynamic recrystallization of Al-11.1Zn-2.3Mg-2.0Cu-0.05Sc alloy was explored in the isothermal hot compression test with a temperature range of 653-733 K at strain rate of 10-3 s-1. The microstructural evolution of th
Externí odkaz:
https://doaj.org/article/fc3f3e0fd39b4d45980009f2f46134d0
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 7, Pp 2890-2908 (2024)
According to a high-temperature compression test of rare earth magnesium alloy (WE43), a strain-compensated constitutive model of the Arrhenius equation based on Zener-Hollomon parameters was established, and the rheological behaviors were predicted.
Externí odkaz:
https://doaj.org/article/8883cc58aef143b6937d51c72f3b3d3e
Autor:
Jinchuan Long, Lei Deng, Junsong Jin, Mao Zhang, Xuefeng Tang, Pan Gong, Xinyun Wang, Gangfeng Xiao, Qinxiang Xia
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 7, Pp 3003-3023 (2024)
Hot deformation is a commonly employed processing technique to enhance the ductility and workability of Mg alloy. However, the hot deformation of Mg alloy is highly sensitive to factors such as temperature, strain rate, and strain, leading to complex
Externí odkaz:
https://doaj.org/article/69a0dd78d2a84c599af9f20c058652a0
Autor:
Zhiping Wang, Keneng Li, Tai Luo, Peikang Xia, Jiwei Geng, Yugang Li, Dong Chen, Xianfeng Li, Gang Sha, Haowei Wang
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2424-2434 (2024)
This study systematically investigates the flow behavior of 7050 aluminum (Al) alloy produced via spray forming and subjected to a proposed pretreatment through thermal compression tests. The experimental findings reveal that the peak stress increase
Externí odkaz:
https://doaj.org/article/7a4010aa9872485d930a560cadafc48e
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 298-317 (2024)
Through hot compression and subsequent heat treatment experiments on GH4079 superalloy, the influence of different hot deformation and heat treatment conditions on the evolution of GH4079 superalloy microstructure was studied. The evolution of grains
Externí odkaz:
https://doaj.org/article/60cc9977d265464abee6e8ac578319e2
Autor:
Qingdong Zhang, Jinrong Zuo, Chen Yang, Yingxiang Xia, Xuedao Shu, Bizhou Mei, Ying Wang, Long Cui
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-22 (2024)
Abstract This study explores the hot deformation behavior of Al–Zn–Mg–Cu alloy through uniaxial hot compression (200 °C–450°C) using the Gleeble-1500. True stress–strain curves were corrected, and three models were established: the Arrhen
Externí odkaz:
https://doaj.org/article/bf5aba3252604cfbadf4c84a50d9bba9