In Situ and Ex Situ Observations of the Influence of Twin Boundaries on Heavy Ion Irradiation Damage Effects in 316L Austenitic Stainless Steels

2017 ◽  
pp. 581-591
Author(s):  
G. Meric de Bellefon ◽  
J. C. van Duysen ◽  
K. Sridharan
Keyword(s):  
Stainless Steels ◽  
Ion Irradiation ◽  
Austenitic Stainless Steels ◽  
Heavy Ion ◽  
Ex Situ ◽  
Irradiation Damage ◽  
Twin Boundaries ◽  
Heavy Ion Irradiation

Swift Heavy Ion Irradiation on Quasicrystals

2003 ◽  
Vol 805 ◽  
Author(s):  
Ratnamala Chatterjee
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
Ex Situ ◽  
X Ray Diffraction ◽  
Resistivity Measurements ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Before And After ◽  
Level Of Understanding

ABSTRACTThe present level of understanding of the effects of irradiation of quasicrystalline targets with swift heavy ions has been reviewed here. The results of systematic deposition of large amount of energy densities (12 keV/nm < (dE/dx)e < 40 keV/nm) in Al-Cu-Fe based system are discussed in terms of resistivity measurements (in-situ measurements of resistivity changes with increasing flux (ions/cm2) and ex-situ resistivity vs temperature measurements before and after irradiation) & standard and high-resolution X-ray diffraction measurements made before and after irradiation. The studies are aimed at understanding the changes that may occur in these alloys as a result of the relaxation of such highly excited states of matter. Also, we attempt to learn whether such changes are typical to the long-range quasicrystallinity of the system or not.

Effect of Ion Irradiation on Dislocation Processes in Stainless Steel

2011 ◽  
Vol 1363 ◽  
Author(s):  
Josh Kacher ◽  
Grace S. Liu ◽  
May Martin ◽  
I.M. Robertson
Keyword(s):  
Stainless Steels ◽  
Ion Irradiation ◽  
Electron Tomography ◽  
Austenitic Stainless Steels ◽  
Dislocation Motion ◽  
Irradiation Damage ◽  
Dislocation Generation ◽  
Transmission Electron ◽  
First Time

ABSTRACTThe effects of ion irradiation damage on dislocation generation and propagation in austenitic stainless steels were studied by means of in situ transmission electron microscopy and electron tomography. Tensile samples were irradiated in situ to a dose on the order of 1017 ions/m2 with 1MeV Kr+ and strained at 300 K as well as 673 K. Dislocation motion through the irradiation-obstacle field was jerky and discontinuous, dislocation pile-ups formed in grain interiors and at boundaries, long straight dislocations were generated decorating the channel-matrix walls, and dislocation cross-slip within the channel created debris along the channel leading to channel widening. Electron tomography was applied for the first time to reveal new detail about the dislocation reactions in the channel wall.

scholarly journals Characterization of swift heavy ion irradiation damage in ceria

2015 ◽  
Vol 30 (9) ◽  
pp. 1473-1484 ◽  
Author(s):  
Clarissa A. Yablinsky ◽  
Ram Devanathan ◽  
Janne Pakarinen ◽  
Jian Gan ◽  
Daniel Severin ◽  
...  
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
Irradiation Damage ◽  
Swift Heavy Ion Irradiation ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Image Position

Abstract

In situ study of defect accumulation in zirconium under heavy ion irradiation

2013 ◽  
Vol 433 (1-3) ◽  
pp. 95-107 ◽  
Author(s):  
Y. Idrees ◽  
Z. Yao ◽  
M.A. Kirk ◽  
M.R. Daymond
Keyword(s):  
Ion Irradiation ◽  
Heavy Ion ◽  
In Situ Study ◽  
Heavy Ion Irradiation ◽  
Defect Accumulation
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