Results 41 to 50 of about 734 (192)

Strengthening mechanism based on dislocation-twin interaction under room temperature multi-directional forging of AZ80 Mg alloy [PDF]

Journal of Materials Research and Technology
Twin and dislocation have critical influence on the mechanical properties of the widely used AZ80 magnesium alloy. In the present work, we designed room temperature multi-direction forging (MDF) at different strain amplitudes (3% and 6%) with a same ...
Zhuo Wang, Xi Zhao, Shuchang Li, Jianmin Yu   +3 more
doaj   +2 more sources

Optimization of hot deformation parameters for multi-directional forging of Ti65 alloy based on the integration of processing maps and finite element method [PDF]

Journal of Materials Research and Technology
In this paper, the hot deformation behavior of Ti65 alloy was investigated over the temperature range of 930–1110 °C with the strain rate of 0.001–1 s−1.
Peng Zhu, Shu Yang, Zhijie Gao, Jianrong Liu, Li Zhou   +4 more
doaj   +2 more sources

The Control of Flow Localization in the Post Severe Plastic Deformation (SPD) Forming of Aluminum Through the Application of Low Strain Amplitude Multidirectional (LSA-MDF) Forging [PDF]

Materials Research
Severe Plastic Deformation (SPD) of metals leads to their strengthening and losses in the work hardening capacity. The latter causes flow localization upon subsequent forming of the material.
C.G. de Faria, M.T.P. Aguilar, P.R. Cetlin   +2 more
doaj   +3 more sources

Effect of grain boundary angle on anisotropic behavior of Al-Mg-Sc-Zr alloy sheets

Cailiao gongcheng, 2023
Grain boundary optimization of Al-Mg-Sc-Zr alloy was carried out by multi-directional forging and annealing treatment, and the effects of mixed grain boundary structures on the anisotropic behavior of mechanical properties of alloy sheets were ...
ZHU Jiahao, WEI Lili, HUANG Hongfeng, LIU Shuhui, CHEN Xiaoming, TIAN Ye, FAN Jun   +6 more
doaj   +1 more source

Hot Deformation Behavior and Dynamic Recrystallization of Ultra High Strength Steel

Metals, 2021
In this paper, in order to improve the microstructure uniformity of an ultra-high strength martensitic steel with a strength greater than 2500 Mpa developed by multi-directional forging in the laboratory, a single-pass hot compression experiment with the
Liping Zhong, Bo Wang, Chundong Hu, Jieyu Zhang, Yu Yao   +4 more
doaj   +1 more source

Hardness, Microstructure and Strain Distributions in Commercial Purity Aluminum Processed by Multi Directional Forging (MDF) [PDF]

Materials Research, 2020
Severe plastic deformation (SPD) of metals leads to their strengthening and grain refinement, but to low uniform elongations. Low Strain Amplitude Multi Directional Forging (LSA-MDF) is an important method for increasing this low uniform elongation.
Natanael Geraldo Silva Almeida, Pedro Malaquias Araújo Stemler, Cleber Granato de Faria, Pedro Henrique Rodrigues Pereira, Maria Teresa Paulino Aguilar, Paulo Roberto Cetlin   +5 more
doaj   +1 more source

A multi-response optimization of the multi-directional forging process for aluminium 7075 alloy using grey-based taguchi method

SN Applied Sciences, 2021
The multi-directional forging process of aluminium alloy 7075 (AA 7075) is studied using Deform 3D Version 11.0 simulation software. This process results in grain refinement in the bulk material.
C. Obara, F. M. Mwema, J. N. Keraita, H. Shagwira, J. O. Obiko   +4 more
doaj   +1 more source

Mechanical behavior and microstructures of aluminum processed by low strain amplitude multi-directional confined forging

Journal of Materials Research and Technology, 2020
Severe Plastic Deformation (SPD) leads to grain refinement and strengthening of metals. Among the many SPD processing methods, Multi-Directional Forging (MDF) is the only one where in-situ material stress–strain curves can be obtained. These are adequate
N.G.S. Almeida, P.H.R. Pereira, C.G. de Faria, M.T.P. Aguilar, P.R. Cetlin   +4 more
doaj   +1 more source

Application of multi-directional forged titanium for prosthetic crown fabrication by CAD/CAM

Dental Materials Journal, 2021
Titanium are often used as dental materials, pure titanium present low strength and titanium alloy is reported poor biocompatibility, respectively. To overcome the problem, we fabricated high-strength multi-directional forged (MDF) titanium with improved mechanical properties without changing the chemical composition and evaluated its applicability in ...
ANZAI, Masateru, KUMASAKA, Tomonari, INOUE, Erika, SEIMIYA, Kazuhide, KAWANISHI, Norishige, HAYAKAWA, Tohru, OHKUBO, Chikahiro, MIURA, Hiromi, HOSHI, Noriyuki, KIMOTO, Katsuhiko   +9 more
openaire   +3 more sources

Research on multi-cylinder synchronous control system of multi-directional forging hydraulic press

Journal of Physics: Conference Series, 2022
Abstract A master-slave synchronization control strategy based on RBF network adaptive sliding mode control is proposed to solve the problem of lack of effective control strategy and control accuracy in the process of synchronous motion of three horizontal cylinders of multi-directional die forging hydraulic press in VL ball cage forming
Cong Xu, Xiao Xu, Zhao Liu, Xin wang
openaire   +1 more source