Results 31 to 40 of about 15,459 (217)

Microstructure Evolution of AZ80 Magnesium Alloy during Multi-Directional Forging Process

MATERIALS TRANSACTIONS, 2014
Grain refinement of a magnesium alloy, AZ80, was studied in multi-directional forging (MDF) with decreasing temperatures from 683 to 573K. The MDF was carried out up to accumulative true strains of around 7 with changing the loading direction from pass to pass.
Qingfeng Zhu, Lei Li, Zhiqiang Zhang, Zhihao Zhao, Yubo Zuo, Jianzhong Cui   +5 more
openaire   +2 more sources

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

An adaptive, fully implicit multigrid phase-field model for the quantitative simulation of non-isothermal binary alloy solidification [PDF]

, 2008
Using state-of-the-art numerical techniques, such as mesh adaptivity, implicit time-stepping and a non-linear multi-grid solver, the phase-field equations for the non-isothermal solidification of a dilute binary alloy have been solved.
Jimack, P.K., Mullis, A.M., Rosam, J.
core   +1 more source

Decreasing the mechanical anisotropy of the forged Mg-8.5Gd-2.5Y-1.5Zn-0.5Zr alloy by modulating blocky LPSO particles using multi-directional forging

Journal of Magnesium and Alloys
The blocky LPSO particles were modulated by single-directional and multi-directional forging, and the effect of blocky LPSO particles on the anisotropy of mechanical properties of Mg-8.5Gd-2.5Y-1.5Zn-0.5Zr alloy forged parts was investigated.
Jiyu Li, Fulin Wang, Jian Zeng, Chaoyu Zhao, Chen Qian, Fenghua Wang, Shuai Dong, Li Jin, Jie Dong   +8 more
doaj   +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
doaj   +1 more source

Wilbur Norman Christiansen 1913-2007

, 2011
W. N. ('Chris') Christiansen was an innovative and influential radio astronomy pioneer. The hallmarks of his long and distinguished career in science and engineering, spanning almost five decades, were his inventiveness and his commitment to, and success
Frater, R. H., Goss, W. M.
core   +1 more source

Effect of multi-pass multi-directional forging on tribological properties of Si-rich eutectoid ZA alloys

Transactions of Nonferrous Metals Society of China, 2021
Abstract The effect of multi-pass multi-directional forge (MDF) on the tribological properties of ZA22−xSi alloy (x=0, 4, 8 wt.%) was investigated. The results indicate that MDF breaks down the cast microstructure of alloys and produces a well-modified microstructure comprising finely distributed α- and η-phases and primary Si particles.
D. YOUSEFI, R. TAGHIABADI, M.H. SHAERI
openaire   +1 more source

Improved corrosion resistance and mechanical properties of biodegradable Mg–4Zn–xSr alloys: effects of heat treatment, Sr additions, and multi-directional forging

Journal of Materials Research and Technology, 2022
The effects of Sr additions, heat treatment (T4 and T6), and multi-directional forging on the microstructural evolution, mechanical properties and biodegradability of Mg–4Zn–xSr alloys were investigated.
Ehsan Gerashi, Reza Alizadeh, Reza Mahmudi   +2 more
doaj   +1 more source

Advanced numerical method for generation of three-dimensional particles and its application in microstructure-based simulation of fatigue behavior [PDF]

, 2011
International audienceThe topology of representative elementary volumes (REV) generated to model materials microstructure is getting more and more complex.
Bernacki, Marc, Bouchard, Pierre-Olivier, Chastel, Yvan, Cornuault, Pierre-Henri, Hachem, Elie, Milesi, Marc   +5 more
core   +3 more sources

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source