Results 21 to 30 of about 4,078 (224)

Tuning the microstructure and mechanical properties of TiAl-based alloy through grain boundary engineering

Journal of Materials Research and Technology, 2022
In order to modify the room-temperature plasticity of TiAl-based alloy, grain boundary character distribution (GBCD) in TiAl-based alloy was tuned through multidirectional isothermal forging (MDIF) combined with annealing. The experimental results showed
Yaodong Xuanyuan, Hongjun Li, Ming Huang, Yinbiao Yan, Sen Yang   +4 more
doaj   +1 more source

Experimental study and numerical simulation of α lamellar globularization for TC21 titanium alloy during multidirectional forging

Materials Research Express, 2022
Evolution of microstructure and the globularization mechanism of α lamellar for TC21 titanium alloy during multi-directional forging (MDF) were analyzed with the help of OM, SEM, EDS and TEM techniques, FE simulation was also used to observe the above ...
Cheng Tao, Delai Ouyang, Xia Cui, Xixin Lan, Xingcai Wan, Longteng Pan   +5 more
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Particle Stimulated Nucleation Effect for Al-Mg-Zr-Sc Alloys with Ni Addition during Multidirectional Forging

Metals, 2023
The study aims to investigate the influence of fraction of coarse undeformed particles on the microstructure evolution and mechanical properties of alloys processed by isothermal multidirectional forging (MDF).
Mikhail S. Kishchik, Andrey G. Mochugovskiy, Maxence Cuda, Anna A. Kishchik, Anastasia V. Mikhaylovskaya   +4 more
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Microstructure evolution in a 316L stainless steel subjected to multidirectional forging and unidirectional bar rolling [PDF]

, 2014
The formation of ultrafine-grained structures was studied in a 316L stainless steel during severe plastic deformation. The steel samples were processed up to a total amount of strain of 4 at ambient temperature using two different methods, i.e ...
Belyakov, A., Kaibyshev, R., Kipelova, A., Odnobokova, M.   +3 more
core   +1 more source

Refinement mechanism of centimeter-grade coarse grains in as-cast Ti2AlNb-based alloy during multi-directional forging

Materials & Design, 2023
Centimeter-grade coarse grains commonly exist in heavy ingots of Ti2AlNb-based alloy and severely deteriorate their workability. To investigate the refinement of coarse grains, multi-directional isothermal forging (MDIF) was carried out on samples cut ...
Zhongyuan Yang, Haowei Liu, Zhenshan Cui, Haiming Zhang, Fei Chen   +4 more
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Microstructural evolution, high temperature tensile deformation behavior, and deformation mechanism in an Mg–Zn–Y–Ca–Zr alloy processed by multidirectional forging and hot rolling

Journal of Materials Research and Technology, 2023
To explore high temperature ductility, a new Mg-2.70Zn-1.34Y-0.37Ca-0.02Zr (wt.%) alloy has been fabricated by novel multidirectional forging (MDF) and hot rolling. The microstructure and mechanical properties were investigated. The average grain size of
Furong Cao, Renjie Liu, Shuting Kong, Nanpan Guo, Panning Xu, Guangming Xu   +5 more
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Ductility enhancement of EW75 alloy by multi-directional forging

Journal of Magnesium and Alloys, 2014
In this study, the Mg–7Gd–5Y–1Nd–0.5Zr alloy can reach a high ductility by the process of multi-directional forging, and the evolution of the microstructure, texture and the mechanical properties were discussed systematically. The results show that after
M. Hong, D. Wu, R.S. Chen, X.H. Du
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Microstructure and mechanical properties of in situ TiB2•TiAl3/2024Al composite subjected to multidirectional forging

Journal of Materials Research and Technology, 2022
The TiB2•TiAl3/2024Al composite fabricated by in situ reaction method was subjected to multidirectional forging (MDF) and the effects of temperature and pass number of MDF on the microstructure and mechanical properties of the composite were investigated.
Qiang Chen, Haoyu Geng, Hongming Zhang, Xin Li, Gang Chen   +4 more
doaj   +1 more source

Effect of multidirectional forging and equal channel angular pressing on ultrafine grain formation in a Cu-Cr-Zr alloy [PDF]

, 2014
The microstructure evolution was investigated in a Cu-0.3%Cr -0.5%Zr alloy subjected to large plastic deformation at temperature of 400° C. Two methods of large plastic deformation, i.e., equal channel ang ular pressing (ECAP) and multidirectional ...
Belyakov, A., Kaibyshev, R., Shakhova, I.   +2 more
core   +1 more source

Static grain growth in an austenitic stainless steel subjected to intense plastic straining [PDF]

, 2014
The post-dynamic recrystallization of an ultrafine grained 304-type austenitic stainless steel was studied during annealing at 800 and 1000°C for 7.5 to 480 minutes.
Belyakov, A., Kaibyshev, R., Tikhonova, M.   +2 more
core   +1 more source