Helium causing disappearance of a/2 < 111 > dislocation loops in binary Fe-Cr ferritic alloys

被引：6
|
作者：
Bhattacharya, Arunodaya [1 ]
Henry, Jean [3 ]
Decamps, Brigitte [4 ]
Zinkle, Steven J. [1 ,5 ]
Meslin, Estelle [2 ]
机构：
[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA
[2] Univ Paris Saclay, Serv Rech Metallurgie Phys, CEA, DEN, F-91191 Gif Sur Yvette, France
[3] Univ Paris Saclay, Serv Rech Met Appl, Lab Anal Microstruct Mat, CEA,DEN, F-91191 Gif Sur Yvette, France
[4] Univ Paris Saclay, Lab Phys Infinis Irene Joliot Curie 2, IJC Lab, F-91405 Orsay, France
[5] Univ Tennessee, Knoxville, TN 37996 USA
来源：
JOURNAL OF NUCLEAR MATERIALS | 2021年 / 556卷
关键词：
Fe-Cr alloys; Ion irradiation; Transmission electron microscopy (TEM); Helium; Chromium; HEAVY-ION DAMAGE; RADIATION-DAMAGE; INTERSTITIAL CLUSTERS; DEFECT ACCUMULATION; NEUTRON-IRRADIATION; ALPHA-IRON; PURE IRON; MICROSTRUCTURE; EVOLUTION; CHROMIUM;
D O I：
10.1016/j.jnucmat.2021.153213
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Single and dual-beam self-ion irradiations were performed at 500 degrees C on ultra-high purity Fe14%Cr alloy to-0.33 displacements-per-atom (dpa), and 0 or 3030 atomic-parts-per-million (appm) helium/dpa, respectively. Using transmission electron microscopy, we reveal that helium can drastically modify the dislocation loop Burgers vector in Fe-Cr alloys. Helium co-implantation caused complete disappearance of a/2 111 100 111 111 111 111 100 111 type loops and causes higher loop densities in Fe-Cr alloys. (c) 2021 Elsevier B.V. All rights reserved.
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页数：13
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