Results 21 to 30 of about 24,096 (268)

Dynamic recrystallization, twinning behaviors and mechanical response of pre-twinned AZ31 Mg alloy sheet along various strain paths at warm temperature

Journal of Materials Research and Technology, 2022
In this study, AZ31 Mg alloy sheet was pre-twinned at room temperature along the transverse direction (TD) to introduce {10–12} tensile twins. The uniaxial tensile experiment was conducted at 200 °C to investigate the dynamic recrystallization, twinning ...
Xiaohuan Pan, Lifei Wang, Liangliang Xue, Mahdi Sabbaghian, Pengbin Lu, Wei Wu, Guangsheng Huang, Bin Xing, Hongxia Wang   +8 more
doaj   +1 more source

Microstructural Evolution along the NiCrMoV Steel Welded Joints Induced by Low-Cycle Fatigue Damage

Metals, 2021
The degradation of mechanical properties of materials is essentially related to microstructural changes under service loadings, while the inhomogeneous degradation behaviors along welded joints are not well understood.
Shuo Weng, Yuhui Huang, Mingliang Zhu, Fuzhen Xuan   +3 more
doaj   +1 more source

Microstructure evolution of hydrated cement pastes [PDF]

Physical Review E, 2005
We propose an original method based on both proton nuclear magnetic relaxation dispersion and high-resolution NMR spectra to investigate the microstructure of synthesized Ca3SiO5-hydrated cement paste. This method allows a clear assessment of the local proton chemical sites as well as the determination of dynamical information of moving proton species ...
Plassais, A., Pomies, M.P., Lequeux, N., Korb, J.P., Petit, D., Barberon, F., Bresson, B.   +6 more
openaire   +3 more sources

Prediction of microstructure in machined deformation layer considering the effect of γ′ precipitates of FGH96 through a FEM-CA coupling method

Materials & Design
The complex non-uniform deformation field in the cutting process induces microstructural evolution, leading to changes in mechanical properties, which has attracted increasing attention.
Xuepeng Wang, Xiaoping Ren, Zhaoxin Wang, Zhanqiang Liu, Bing Wang, Jinfu Zhao   +5 more
doaj   +1 more source

Microstructural evolution of helium-implanted α-SiC [PDF]

Physical Review B, 2000
Helium has a decisive effect on the microstructure of silicon carbide materials after implantation and subsequent annealing. A dense population of bubbles and dislocation loops is already observed at relatively low displacement doses after annealing of helium-implanted \ensuremath{\alpha}-SiC, while no visible damage appears after irradiation without ...
Chen, J., Jung, P., Trinkhaus, H.
openaire   +2 more sources

Hot deformation behavior and microstructural evolution of SiCp/Al-4.2Cu-4.1Mg composites

Journal of Materials Research and Technology
This study investigates the hot deformation behavior and microstructural evolution of 30 vol% SiCp/Al-4.2Cu-4.1Mg composites. Stress-strain curves were obtained through isothermal hot compression tests (deformation temperatures 350–500 °C, strain rates 0.
Sitong Cai, Shiming Hao, Junqi Wang, Haozhan Wu, Pengru Liu, Yutong Liu, Mingxin Ma, Jingpei Xie   +7 more
doaj   +1 more source

Hot deformation behaviors and microstructure evolution of Mg–Si–Sr alloy

Materials Research Express, 2020
The hot deformation behavior and microstructural evolution of as-extruded Mg-0.55 wt.%Si-0.75 wt.%Sr alloys at 250 °C with the compressive strain rate of 1 s ^−1 , 0.1 s ^−1 , 0.01 s ^−1 and 0.001 s ^−1 were investigated via electron backscatter ...
Lei Zhang, Jinhui Wang, Yunpeng Zhu, Bo Shi, Peipeng Jin   +4 more
doaj   +1 more source

Microstructural evolution of pre-twinned Mg alloy with annealing temperature and underlying boundary migration mechanism

Journal of Magnesium and Alloys, 2023
This study investigates the variations in the microstructural characteristics of a pre-twinned Mg alloy with the temperature of the subsequent annealing treatment.
Ye Jin Kim, Jong Un Lee, Gyo Myeong Lee, Sung Hyuk Park   +3 more
doaj   +1 more source

Microstructural evolution and mechanical properties of chip-stacking micro-solder joints under TG bonding process

Journal of Materials Research and Technology
As chip-stacking micro-joints are downsized to less than 20 μm, the microstructural evolution induced by multiple TG bonding has emerged as a critical concern for mechanical properties.
Ye Tian, Hongsheng Xu, Yuejun Li, Zhongyu Liu, Daoming Fan, Chao Wang, Ziqiang Li, Wei Liu, Xing Chen, Fengshun Wu   +9 more
doaj   +1 more source

Network Localization of Fatigue in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Fatigue is among the most common symptoms and one of the main factors determining the quality of life in multiple sclerosis (MS). However, the neurobiological mechanisms underlying fatigue are not fully understood. Here we studied lesion locations and their connections in individuals with MS, aiming to identify brain networks ...
Olli Likitalo, Jaakko Kungshamn, Albert Bellmunt‐Gil, Silvia Tommasin, Abhineet Ojha, Matias Viitala, Juho Aaltonen, Jyrki Lötjönen, Juha Koikkalainen, Pauli Ylikotila, Patrizia Pantano, Merja Soilu‐Hänninen, Juho Joutsa   +12 more
wiley   +1 more source