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.

引用

页码：1 / 8

页数：8

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