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Optimization of Grain Boundary Character Distribution in Fe-18Cr-18Mn-0.63N High-Nitrogen Austenitic Stainless Steel
Alternative TitleOptimization of Grain Boundary Character Distribution in Fe-18Cr-18Mn-0.63N High-Nitrogen Austenitic Stainless Steel
Shi Feng; Li Xiaowu; Hu Yutong; Su Chuan; Liu Chunming
2013
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume26Issue:5Pages:497-502
AbstractGrain boundary engineering (GBE) is a practice of improving resistance to grain boundary failure of the material through increasing the proportion of low Sigma coincidence site lattice (CSL) grain boundaries (special grain boundaries) in the grain boundary character distribution (GBCD). The GBCD in a cold rolled and annealed Fe-18Cr-18Mn-0.63N high-nitrogen austenitic stainless steel was analyzed by electron back scatter diffraction (EBSD). The results show that the optimization process of GBE in the conventional austenitic stainless steel cannot be well applied to this high-nitrogen austenitic stainless steel. The percentage of low Sigma CSL grain boundaries could increase from 47.3% for the solid solution treated high-nitrogen austenitic stainless steel specimen to 82.0% for the specimen after 5% cold rolling reduction and then annealing at 1423 K for 10 min. These special boundaries of high proportion effectively interrupt the connectivity of conventional high angle grain boundary network and thus achieve the GBCD optimization for the high-nitrogen austenitic stainless steel.
Other AbstractGrain boundary engineering (GBE) is a practice of improving resistance to grain boundary failure of the material through increasing the proportion of low ∑ coincidence site lattice (CSL) grain boundaries (special grain boundaries) in the grain boundary character distribution (GBCD). The GBCD in a cold rolled and annealed Fe-18Cr-18Mn-0.63N high-nitrogen austenitic stainless steel was analyzed by electron back scatter diffraction (EBSD). The results show that the optimization process of GBE in the conventional austenitic stainless steel cannot be well applied to this high-nitrogen austenitic stainless steel. The percentage of low ∑CSL grain boundaries could increase from 47.3 % for the solid solution treated high-nitrogen austenitic stainless steel specimen to 82.0 % for the specimen after 5 % cold rolling reduction and then annealing at 1423 K for 10 min. These special boundaries of high proportion effectively interrupt the connectivity of conventional high angle grain boundary network and thus achieve the GBCD optimization for the high-nitrogen austenitic stainless steel.
KeywordCORROSION 304-STAINLESS-STEEL BEHAVIOR EVOLUTION High nitrogen austenitic stainless steel Grain boundary character distribution CSL grain boundary EBSD
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Fundamental Research Funds for the Central Universities of China]
CSCD IDCSCD:4951614
Citation statistics
Cited Times:7[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/152068
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Shi Feng,Li Xiaowu,Hu Yutong,et al. Optimization of Grain Boundary Character Distribution in Fe-18Cr-18Mn-0.63N High-Nitrogen Austenitic Stainless Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2013,26(5):497-502.
APA Shi Feng,Li Xiaowu,Hu Yutong,Su Chuan,&Liu Chunming.(2013).Optimization of Grain Boundary Character Distribution in Fe-18Cr-18Mn-0.63N High-Nitrogen Austenitic Stainless Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,26(5),497-502.
MLA Shi Feng,et al."Optimization of Grain Boundary Character Distribution in Fe-18Cr-18Mn-0.63N High-Nitrogen Austenitic Stainless Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS 26.5(2013):497-502.
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