IMR OpenIR
Effect of silicon on the microstructure and mechanical properties of reduced activation ferritic/martensitic steel
S. H.; Rong Chen, L. J.
2015
Source PublicationJournal of Nuclear Materials
ISSN0022-3115
Volume459Pages:13-19
AbstractThe effect of Si in the range of 0.05-0.77 wt.% on the microstructure, tensile properties and impact toughness of reduced activation ferritic/martensitic (RAFM) steels has been investigated. An increase in Si content affected the prior austenite grain size resulting in an increase in the tensile strength at room temperature. The tensile strength of steels tested above 773 K did not change significantly with the addition of Si, which was due to the diminished carbide hardening effect and boundary strengthening effect. Detailed fractographic analysis revealed that tear fractures occurred in the samples tensile tested at room temperature, while cup and cone fractures were found in samples tensile tested at temperatures above 773 K, which were induced by the easing of dislocation pile-ups. The ductile-to-brittle transition temperature (DBTT) decreased when the Si content increased to 0.22 wt.%. However, the DBTT increased when the Si content reached 0.77 wt.% and this was due to the precipitation of Laves phase. The RAFM steel with approximately 0.22 wt.% Si content was found to possess an optimized combination of microstructure, tensile properties and impact toughness. (C) 2015 Elsevier B.V. All rights reserved.
description.department[chen, shenghu ; rong, lijian] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, peoples r china. ; chen, sh (reprint author), chinese acad sci, inst met res, div mat special environm, 72 wenhua rd, shenyang 110016, peoples r china. ; chensh@imr.ac.cn
KeywordFerritic-martensitic Steel Laves Phase Precipitation Behavior Tensile Properties Rafm Steel Reactors Deformation Tungsten Fusion Energy
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73773
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. H.,Rong Chen, L. J.. Effect of silicon on the microstructure and mechanical properties of reduced activation ferritic/martensitic steel[J]. Journal of Nuclear Materials,2015,459:13-19.
APA S. H.,&Rong Chen, L. J..(2015).Effect of silicon on the microstructure and mechanical properties of reduced activation ferritic/martensitic steel.Journal of Nuclear Materials,459,13-19.
MLA S. H.,et al."Effect of silicon on the microstructure and mechanical properties of reduced activation ferritic/martensitic steel".Journal of Nuclear Materials 459(2015):13-19.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[S. H.]'s Articles
[Rong Chen, L. J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[S. H.]'s Articles
[Rong Chen, L. J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[S. H.]'s Articles
[Rong Chen, L. J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.