scholarly journals Precipitation Stages and Reaction Kinetics of AlMgSi Alloys during the Artificial Aging Process Monitored by In-Situ Electrical Resistivity Measurement Method

Metals ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 39 ◽  
Author(s):  
Hong He ◽  
Long Zhang ◽  
Shikang Li ◽  
Xiaodong Wu ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Reaction Kinetics ◽  
Measurement Method ◽  
Aging Process ◽  
Artificial Aging ◽  
Resistivity Measurement ◽  
Electrical Resistivity Measurement ◽  
Kinetics Of

scholarly journals The influence of Si and V on the kinetics of phase transformation and microstructure of rapidly solidified Al-Fe-Zr alloys

2013 ◽  
Vol 49 (1) ◽  
pp. 83-89 ◽  
Author(s):  
B. Karpe ◽  
B. Kosec ◽  
A. Nagode ◽  
M. Bizjak
Keyword(s):  
Electron Microscopy ◽  
Electrical Resistivity ◽  
Heating Rate ◽  
Resistivity Measurement ◽  
Electrical Resistivity Measurement ◽  
Microstructural Development ◽  
Precipitation Kinetics ◽  
Rapidly Solidified ◽  
Kinetics Of ◽  
Zr Alloys

The influence of Si and V on the precipitation kinetics of the rapidly solidified (RS) Al-Fe-Zr alloys is presented. Precipitation kinetics and microstructural development of RS Al-Fe-Zr alloys with Si or V addition have been investigated by the combination of four point electrical resistance measurement, optical microscopy, transmition electron microscopy (TEM) and scanning electron microscopy (SEM). For verification of the electrical resistivity measurement results differential scanning calorimetry (DSC) and differential thermal analysis (DTA) was also applied. Rapidly solidified samples, in the form of thin ribbons, were prepared with the single roll melt spun technique. For determination of the distinctive temperatures at which microstructural transformations occur in-situ electrical resistivity measurement during heating of the ribbons with various constant heating rates has been used. It was found that microstructure decomposition depends on heating rate and shifts to higher temperatures with increasing heating rate. After heating above the distinctive transition temperatures, heating was stopped and microstructure of the samples examined by electron microscopy.

scholarly journals An upgrade of the materials irradiation facility with in-situ electrical resistivity measurement at the Demokritos TANDEM accelerator

2019 ◽  
Vol 26 ◽  
pp. 251
Author(s):  
A. Theodorou ◽  
Z. Kotsina ◽  
M. Axiotis ◽  
G. Apostolopoulos
Keyword(s):  
Electrical Resistivity ◽  
Radiation Damage ◽  
Research Evaluation ◽  
Ion Beam ◽  
Resistivity Measurement ◽  
Electrical Resistivity Measurement ◽  
Tandem Accelerator ◽  
Fusion Materials ◽  
Beam Currents

As an important part of fusion materials research, evaluation of radiation damage in fusion materials has been emphasized more than a half century. In order to improve our understanding of radiation damage in fusion materials, an upgrade has been performed of the materials irradiation facility IR2, which is located at the NCSR “Demokritos” 5.5 MV TANDEM accelerator. The upgraded facility allows irradiation at higher ion beam currents while ensuring that the target temperature remains below 10 K. It provides in-situ electrical resistivity measurements on several samples for real-time monitoring of radiation damage as well as in-situ post-irradiation annealing up to 300 K. The upgraded IR2 facility has been successfully employed in radiation damage and recovery studies of metallic materials with applications in fusion research.

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