LASER NITRIDING OF IRON BY EXCIMER-LASER IRRADIATION IN AIR AND N-2 GAS

被引：24

作者：

SCHAAF, P ^{[1
]}

EMMEL, A ^{[1
]}

ILLGNER, C ^{[1
]}

LIEB, KP ^{[1
]}

SCHUBERT, E ^{[1
]}

BERGMANN, HW ^{[1
]}

机构：

[1] EVUS,ZENTRUM APPLIKAT & TECH,D-92249 VILSECK,GERMANY

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1995年 / 197卷 / 02期

关键词：

NITRIDING; EXCIMER LASER IRRADIATION; IRON;

D O I：

10.1016/0921-5093(94)02718-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Excimer laser irradiation of iron in air or nitrogen gas at ambient pressure was found to result in a remarkable nitriding of the surface. Nitrogen concentrations of about 12 at.% were achieved in surface layers exceeding 500 nm in depth. The formation of oxides during irradiation in air was limited to the first 100 nm of the sample. The nitrogen resulted in the formation of Fe-N austenite and epsilon-iron nitride in the laser-nitrided surface layer as proven by Mossbauer spectroscopy. A combination of several nuclear methods is well suited for the investigation of this process.

引用

页码：L1 / L4

页数：4

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