In-situ Heating and Cooling of Charpy Test Specimens2

2008 ◽  
pp. 286-286-12
Author(s):  
MP Manahan
Keyword(s):  
Charpy Test ◽  
Heating And Cooling ◽  
In Situ Heating

In situ Transmission Electron Microscopy and Nanoindentation Studies of Phase Transformation and Pseudoelasticity of Shape-memory Titanium-nickel Films

2005 ◽  
Vol 20 (7) ◽  
pp. 1808-1813 ◽  
Author(s):  
X.-G. Ma ◽  
K. Komvopoulos
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Phase Transformation ◽  
Shape Memory ◽  
Heating And Cooling ◽  
Transmission Electron ◽  
Different Temperatures ◽  
Titanium Nickel ◽  
In Situ Heating

Transmission electron microscopy (TEM) and nanoindentation, both with in situ heating capability, and electrical resistivity measurements were used to investigate phase transformation phenomena and thermomechanical behavior of shape-memory titanium-nickel (TiNi) films. The mechanisms responsible for phase transformation in the nearly equiatomic TiNi films were revealed by heating and cooling the samples inside the TEM vacuum chamber. Insight into the deformation behavior of the TiNi films was obtained from the nanoindentation response at different temperatures. A transition from elastic-plastic to pseudoelastic deformation of the martensitic TiNi films was encountered during indentation and heating. In contrast to the traditional belief, the martensitic TiNi films exhibited a pseudoelastic behavior during nanoindentation within a specific temperature range. This unexpected behavior is interpreted in terms of the evolution of martensitic variants and changes in the mobility of the twinned structures in the martensitic TiNi films, observed with the TEM during in situ heating.

Influence of ion-milling on the T2 phase in Al-2.5%Li-2.5%Cu alloy

1989 ◽  
Vol 47 ◽  
pp. 288-289
Author(s):  
J. R. Reed ◽  
D. J. Michel ◽  
P. R. Howell
Keyword(s):  
Thin Foil ◽  
Icosahedral Symmetry ◽  
Ion Milling ◽  
Cu Alloy ◽  
Thin Foils ◽  
Heat Treated ◽  
Aluminum Solid Solution ◽  
In Situ Heating ◽  
The Stability

The Al6Li3Cu (T2) phase, which exhibits five-fold or icosahedral symmetry, forms through solid state precipitation in dilute Al-Li-Cu alloys. Recent studies have reported that the T2 phase transforms either during TEM examination of thin foils or following ion-milling of thin foil specimens. Related studies have shown that T2 phase transforms to a microcrystalline array of the TB phase and a dilute aluminum solid solution during in-situ heating in the TEM. The purpose of this paper is to report results from an investigation of the influence of ion-milling on the stability of the T2 phase in dilute Al-Li-Cu alloy.The 3-mm diameter TEM disc specimens were prepared from a specially melted Al-2.5%Li-2.5%Cu alloy produced by conventional procedures. The TEM specimens were solution heat treated 1 h at 550°C and aged 1000 h at 190°C in air to develop the microstructure. The disc specimens were electropolished to achieve electron transparency using a 20:80 (vol. percent) nitric acid: methanol solution at -60°C.

Texture Evolution Under Fast Heating and Cooling Rates of Zirconium Alloys Studied In-Situ by Synchrotron X-Ray Diffraction

2020 ◽  
Author(s):  
Chi-Toan Nguyen ◽  
Alistair Garner ◽  
Javier Romero ◽  
Antoine Ambard ◽  
Michael Preuss ◽  
...  
Keyword(s):  
Texture Evolution ◽  
Zirconium Alloys ◽  
X Ray Diffraction ◽  
Fast Heating ◽  
Cooling Rates ◽  
X Ray ◽  
Heating And Cooling

Innovative Closed-Cell Reactor Permits In Situ Heating and Gas Reactions with Atomic Resolution at Atmospheric Pressure

2012 ◽  
Vol 18 (S2) ◽  
pp. 1118-1119 ◽  
Author(s):  
L. Allard ◽  
S.H. Overbury ◽  
M.B. Katz ◽  
W.C. Bigelow ◽  
D. Nackashi ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Atomic Resolution ◽  
Closed Cell ◽  
Cell Reactor ◽  
In Situ Heating ◽  
Gas Reactions

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

scholarly journals Phase Transitions in a Perovskite Thin Film Studied by Environmental In Situ Heating Nano‐Beam Electron Diffraction (Small Methods 9/2021)

Small Methods ◽  
2021 ◽  
Vol 5 (9) ◽  
pp. 2170042
Author(s):  
Tobias Meyer ◽  
Birte Kressdorf ◽  
Vladimir Roddatis ◽  
Jörg Hoffmann ◽  
Christian Jooss ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transitions ◽  
Electron Diffraction ◽  
Beam Electron ◽  
In Situ Heating

scholarly journals Reversible Phase Transformations during In-Situ Heating of Uncapped Ge2Sb2Te5 Films

2021 ◽  
Vol 27 (S1) ◽  
pp. 2412-2414
Author(s):  
Chanchal Ghosh ◽  
Manish Singh ◽  
Paul Kotula ◽  
Helena Silva ◽  
C. Barry Carter
Keyword(s):  
Phase Transformations ◽  
In Situ Heating ◽  
Reversible Phase

In-situ heating effect of laminar plasma jet during Mo coatings deposition

2021 ◽  
Vol 305 ◽  
pp. 130743
Author(s):  
Hui-Yu Zhang ◽  
Sen-Hui Liu ◽  
Chang-Jiu Li ◽  
Cheng-Xin Li
Keyword(s):  
Plasma Jet ◽  
Heating Effect ◽  
Laminar Plasma Jet ◽  
In Situ Heating

scholarly journals Live Mapping of Crystalline Regions During in-situ Heating (TEM and STEM)

2021 ◽  
Vol 27 (S1) ◽  
pp. 2688-2690
Author(s):  
Benjamin Miller ◽  
Anahita Pakzad ◽  
Liam Spillane ◽  
Bernhard Schaffer ◽  
Cory Czarnik
Keyword(s):  
In Situ Heating
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