Results 31 to 40 of about 278 (172)

Crystallographic orientation and slip behavior of powder metallurgy Ti–6Al–4V via multi-directional forging

Journal of Materials Research and Technology
In this study, we present a microstructural and mechanical analysis of Ti–6Al–4V alloys processed by low-temperature multi-directional forging at 900 °C, achieving near-theoretical density (99.9%), with a tensile strength of 1070 MPa and elongation of 14.
Shangxing Qiu, Fang Yang, Yang Li, Wei Gou, Jinfeng Wang, Cunguang Chen, Xinhua Liu, Zhimeng Guo   +7 more
doaj   +1 more source

Grain refinement of magnesium alloys by dynamic recrystallization (DRX): A review

Journal of Materials Research and Technology, 2023
For elevated-temperature thermomechanical processing, the occurrence of recrystallization during straining is known as dynamic recrystallization (DRX), which usually happens in Mg alloys during practical hot deformation processes such as rolling, forging,
Hamed Mirzadeh
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

Achieving enhanced strength-ductility synergy in ZTC4 titanium alloy through hot oscillatory forging

Journal of Materials Research and Technology
The coarse Widmanstätten microstructure and high porosity of cast ZTC4 titanium alloy critically impair its mechanical properties and limit its industrial applications.
Dejian Sun, Han Zhang, Mengwei Yang, Jingshu Yuan, Yuyang Yuan, Tianzi Wang, Yang Gao, Lei Fan, Xiaoqin Guo, Linan An   +9 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

Brokers, Collaborators and Knowledge Translators: Expanding the Role of Research Assistants in Geographic Research

Asia Pacific Viewpoint, EarlyView.
ABSTRACT While ‘local’ research assistants (RA) often play a key role in knowledge production in fieldwork‐based disciplines like geography, their role and agency often remain silenced. This paper brings together scholarship in feminist geography and critical development studies to reposition RAs as brokers, collaborators, and knowledge translators.
Zali Fung
wiley   +1 more source

Influence of temperature and cumulative strain on microstructure and mechanical properties of multi-directional forged Mg-Gd-Y-Zn-Zr alloy

Journal of Materials Research and Technology
The multidirectional forging (MDF) experiments of Mg-Gd-Y-Zn-Zr alloy were performed. The effects of temperature and cumulative strain on microstructure and mechanical properties of multi-directional forged Mg-Gd-Y-Zn-Zr alloy were studied.
Xiangsheng Xia, Yiwen Guo, Ming Li, Shiqing Gao, Lin Xiang   +4 more
doaj   +1 more source

Microstructure evolution and mechanical properties of AZ80 magnesium alloy during high-pass multi-directional forging

Results in Physics, 2018
Severe plastic deformation (SPD) was carried out on AZ80 alloy by high-pass multi-directional forging (MDF). Results showed that AZ80 alloy was effectively refined through MDF, and average grain size was refined to 0.73 µm after 24 passes of forging. Its
Jinlong Zhang, Hui Xie, Zhenlin Lu, Ying Ma, Shiping Tao, Kun Zhao   +5 more
doaj   +1 more source

Simulation and experimental study on microstructure evolution of 5CrNiMoV steel during multi-directional non-isothermal forging

Materials Research Express, 2020
Microstructure evolution during the hot forming shows a significant impact on material’s mechanical properties. To explore the deformation characteristics of 5CrNiMoV steel, numerical simulation and microscopic phase-field simulation of the multi ...
Zhiqiang Hu, Kaikun Wang, Li Yang
doaj   +1 more source

Microstructure, texture evolution and yield strength symmetry improvement of as-extruded ZK60 Mg alloy via multi-directional impact forging

Journal of Magnesium and Alloys, 2022
Multi-direction impact forging (MDIF) was applied to the as-extruded ZK60 Mg alloy, and the microstructure, texture evolution and yield strength symmetry were investigated in the current study.
Chao Cui, Wencong Zhang, Wenzhen Chen, Jian He, Xuemin Chen, Jiabin Hou   +5 more
doaj   +1 more source