The martensitic lath width (0.83 ± 0.45μm ∼ 0.48 ± 0.14 μm) and dislocation density (1.3 ± 0.3 × 1015 m−2 ∼ 6.4 ± 1.6 ×1015 m−2) change of Super-clean Reduced Activation Martensitic (SCRAM) steel caused by warm deformation on Gleeble-3500 thermo-simulation machine have been examined. The irradiation-induced helium bubbles and hardening were observed in all the specimens after helium implantation to 1e + 17/cm2 at 723 K. The helium bubbles became smaller and more numerous while the distribution was more homogeneous when the lath width decrease and dislocation density increase. The nano-indentation hardness indicated that the sample, the martensitic lath width is 0.83 ± 0.45μm and the dislocation density is 1.3 ± 0.3 × 1015 m−2, exhibited the maximum nano-indentation variation (ΔH) and the ΔH decreased with the lath width decreasing and dislocation density increasing. The hardening occurred in all helium implanted samples can mainly be ascribed to helium bubbles.
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2014 22nd International Conference on Nuclear Engineering
July 7–11, 2014
Prague, Czech Republic
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4589-9
PROCEEDINGS PAPER
Effect of Lath Width and Dislocation Density on Resistance to Irradiation of Warmly Deformed SCRAM Steel
Yang Mou,
Yang Mou
Huazhong University of Science and Technology, Wuhan, China
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Lihong Xue,
Lihong Xue
Huazhong University of Science and Technology, Wuhan, China
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Qilai Zhou,
Qilai Zhou
Huazhong University of Science and Technology, Wuhan, China
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Caixuan Lu,
Caixuan Lu
Huazhong University of Science and Technology, Wuhan, China
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Jinping Suo,
Jinping Suo
Huazhong University of Science and Technology, Wuhan, China
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Youwei Yan,
Youwei Yan
Huazhong University of Science and Technology, Wuhan, China
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Liping Guo
Liping Guo
Wuhan University, Wuhan, China
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Yang Mou
Huazhong University of Science and Technology, Wuhan, China
Lihong Xue
Huazhong University of Science and Technology, Wuhan, China
Qilai Zhou
Huazhong University of Science and Technology, Wuhan, China
Caixuan Lu
Huazhong University of Science and Technology, Wuhan, China
Jinping Suo
Huazhong University of Science and Technology, Wuhan, China
Youwei Yan
Huazhong University of Science and Technology, Wuhan, China
Liping Guo
Wuhan University, Wuhan, China
Paper No:
ICONE22-30374, V001T02A007; 6 pages
Published Online:
November 17, 2014
Citation
Mou, Y, Xue, L, Zhou, Q, Lu, C, Suo, J, Yan, Y, & Guo, L. "Effect of Lath Width and Dislocation Density on Resistance to Irradiation of Warmly Deformed SCRAM Steel." Proceedings of the 2014 22nd International Conference on Nuclear Engineering. Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues. Prague, Czech Republic. July 7–11, 2014. V001T02A007. ASME. https://doi.org/10.1115/ICONE22-30374
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