In situ deformation of the γ' hardened superalloy Nimonic PE16 in high-voltage electron microscopes

1985 ◽  
Vol 51 (4) ◽  
pp. 607-618 ◽  
Author(s):  
Eckhard Nembach ◽  
K. Suzuki ◽  
M. Ichihara ◽  
S. Takeuchi
Keyword(s):  
High Voltage ◽  
Voltage Electron ◽  
High Voltage Electron ◽  
Electron Microscopes ◽  
In Situ Deformation

In-situ studies in the high-voltage Electron Microscope

1990 ◽  
Vol 48 (4) ◽  
pp. 504-505
Author(s):  
K.H. Westmacott
Keyword(s):  
Phase Transitions ◽  
High Voltage ◽  
Bulk Material ◽  
Outer Region ◽  
High Energy ◽  
Research Areas ◽  
Voltage Electron ◽  
High Voltage Electron ◽  
Electron Microscopes

The principal advantages of high voltage electron microscopes are the ability to 1) attain higher resolution by virtue of the shorter wavelength, and 2) penetrate thicker specimens to observe dynamic behavior representative of bulk material. Some recent examples of in-situ HVEM research, representing the latter category, will be summarized in this contribution, and future directions discussed. Included in the most active research areas are phase transitions, deformation, high temperature reactions and environmental cell studies.Irradiation with high energy electrons in an HVEM provides a convenient alternative to thermal treatments for inducing phase transitions in alloys. An illustration of how ordering or disordering of the same material can occur under electron irradiation is shown in Figure 1. In this example, a Pt7C ordered phase was formed in a Pt-C alloy at 500°C with a defocused beam (outer region) and subsequently disordered at 30°C with a focussed beam (inner spot).

scholarly journals New Approach to In Situ Observation Experiments under Irradiation in High Voltage Electron Microscopes

2014 ◽  
Vol 55 (3) ◽  
pp. 423-427 ◽  
Author(s):  
Hiroaki Abe ◽  
Takahiro Ishizaki ◽  
Feng Li ◽  
Sho Kano ◽  
Yanfen Li ◽  
...  
Keyword(s):  
High Voltage ◽  
New Approach ◽  
Voltage Electron ◽  
High Voltage Electron ◽  
Electron Microscopes
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