AN ATOM PROBE FIELD-ION MICROSCOPY STUDY OF NEUTRON-IRRADIATED PRESSURE-VESSEL STEELS

被引：98

作者：

MILLER, MK ^{[1
]}

BURKE, MG ^{[1
]}

机构：

[1] WESTINGHOUSE SCI & TECHNOL CTR,PITTSBURGH,PA 15235

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 195卷 / 1-2期

关键词：

D O I：

10.1016/0022-3115(92)90364-Q

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Atom probe field ion microscopy has revealed that the microstructure of commercial pressure vessel steels that have been neutron-irradiated is extremely complex and involves many different types of features. These features include ultrafine distributions of copper atmospheres, clusters and precipitates, phosphorus clusters, molybdenum carbides and nitrides, and vanadium carbo-nitrides in the matrix. In addition to these ultrafine features, coarse alloy cementite, molybdenum carbides, and copper-manganese precipitates have been observed at grain boundaries. The grain boundaries were also found to be coated with an ultrathin film of molybdenum carbides and nitrides and were enriched in phosphorus, nickel and manganese.

引用

页码：68 / 82

页数：15

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