Published April 2020 | Version v1
Book Metadata-only

Irradiation damage of ferrite in 308L stainless steel weld metal

Creators

  • 1. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang (China)
  • 2. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang (China)
  • 3. Suzhou Nuclear Power Research Institute, Suzhou(China)
  • 4. Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang(China)

Description

The irradiation damage of δ-ferrite in 308L stainless steel weld metal was studied by using transmission electron microscopy and atom probe tomography. Neither void nor dislocation loop was found in δ-ferrite following irradiation while G-phase precipitation and enhanced spinodal decomposition were observed. With the increased irradiation dose from 0.5 dpa to 3 dpa, the coarsening of G-phase occurred, followed by an obvious inverse coarsening of G-phase. The inverse coarsening of G-phase was associated with the irradiation recoil effect. Spinodal decomposition of δ-ferrite was found in the unirradiated specimen due to the thermal effect during post-welding heat treatment, generating Fe-rich α phase and Cr-rich αʹ phase. Following irradiation, spinodal decomposition was enhanced. (authors)

Part of:
Progress report on nuclear science and technology in China (Vol.6). Proceedings of academic annual meeting of China Nuclear Society in 2019, No.8--Irradiation Effect sub-volume

Additional details

Publishing Information

Publisher
China Atomic Energy Press
Imprint Place
Beijing (China)
ISBN
978-7-5221-0522-2
Imprint Title
Progress report on nuclear science and technology in China (Vol.6). Proceedings of academic annual meeting of China Nuclear Society in 2019, No.8--Irradiation Effect sub-volume
Imprint Pagination
86 p.
Journal Page Range
p. 1-6

Conference

Title
2019 academic annual meeting of China Nuclear Society
Dates
20-23 Aug 2019
Place
Baotou (China)

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
53115237
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ATOMIC DISPLACEMENTS; DECOMPOSITION; DISLOCATIONS; FERRITE; HEAT TREATMENTS; IRRADIATION; METALS; RADIATION DOSES; STAINLESS STEEL-308; TEMPERATURE DEPENDENCE; TOMOGRAPHY; TRANSMISSION ELECTRON MICROSCOPY; WELDED JOINTS
Descriptors DEC
ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIAGNOSTIC TECHNIQUES; DOSES; ELECTRON MICROSCOPY; ELEMENTS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; JOINTS; LINE DEFECTS; MATERIALS; MICROSCOPY; NICKEL ALLOYS; PHYSICAL RADIATION EFFECTS; RADIATION EFFECTS; STAINLESS STEELS; STEEL-CR20NI11; STEELS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
3 figs., 23 refs.