Clustering and ordering of nitrogen in nuclear grade 316LN austenitic stainless steel

被引：38
|
作者：
Shankar, P [1 ]
Sundararaman, D [1 ]
Ranganathan, S [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, Div Met, Kalpakkam 603102, Tamil Nadu, India
来源：
JOURNAL OF NUCLEAR MATERIALS | 1998年 / 254卷 / 01期
关键词：
D O I：
10.1016/S0022-3115(97)00357-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The high misfit strains associated with nitrogen addition and the high chemical affinity with chromium result in a significant driving force for the formation of Cr-N clusters in austenitic steels. The microstructural signatures of cluster formation in nuclear grade 316LN austenitic stainless steel during the early stages of aging at 1123 K are discussed. Aging beyond 25 h results in transformation of fcc clusters to hexagonal Cr2N precipitates. Strain induced ordering of nitrogen in Cr2N precipitates due to continued ageing is also highlighted. (C) 1998 Elsevier Science B.V.
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页码：1 / 8
页数：8
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