Mo surface enrichment on a Fe-Cr alloy by electron beam irradiation

被引：0
|
作者：
Keddam, M [1 ]
Nenci, F [1 ]
Pillier, F [1 ]
Tosto, S [1 ]
Vignaud, C [1 ]
机构：
[1] ENEA, CRE CASACCIA, I-00060 ROME, ITALY
来源：
JOURNAL OF MATERIALS SCIENCE | 1997年 / 32卷 / 13期
关键词：
D O I：
10.1023/A:1018626329051
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mo alloying has been carried out on a Fe-Cr alloy by electron beam irradiation. It is shown that a Mo surface enrichment can be obtained in the range 2-8 at %. Scanning and transmission electron microscopy, X ray microanalysis and electron energy loss spectroscopy have been used to investigate the microstructures obtained after irradiation. Mo-Cr carbide and intermetallic chi phase have been identified after alloying. The intermetallic phase is preferentially formed when the Mo content increases. It is concluded from electrochemical studies and potentiostatic attacks that the active and transpassive dissolution rates are closely related to the Cr content in the ferritic phase. This work must be also regarded as a first step towards the surface preparation of 316 S.S. by Mo incorporation to 304 S.S.
引用
收藏
页码：3613 / 3620
页数：8
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