Effect of nitrogen on damping, mechanical and corrosive properties of Fe-Mn alloys

被引：17

作者：

Bliznuk, VV

Glavatska, NI

Söderberg, O

Lindroos, VK

机构：

[1] Ukrainian Acad Sci, Inst Met Phys, Dept Steels & Alloys, UA-03680 Kiev 142, Ukraine

[2] Helsinki Univ Technol, Met Phys & Sci Mat Lab, FIN-02015 Helsinki, Finland

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 338卷 / 1-2期

基金：

芬兰科学院;

关键词：

Fe-Mn; damping alloys; nitrogen; epsilon-martensite boundary; general corrosion;

D O I：

10.1016/S0921-5093(02)00060-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of alloying by nitrogen on the damping capacity of Fe-14Mn and Fe-16.5Mn wt.% alloys was studied by means of the amplitude-dependent internal friction technique. Also, the effect of nitrogen on phase constitution, mechanical properties and resistance to immersion corrosion was investigated. It was found that the Fe-14Mn alloy possesses a much higher level of damping capacity than the Fe-16.5Mn alloy. The addition of approximately 0.1 wt.% of nitrogen slightly affects the damping capacity of the Fe-14Mn alloy and increases it in the Fe-16.5Mn alloy. At the same time the ultimate tensile strength of the Fe-16.5Mn alloy is increased from 455 to 655 MPa, and the uniform elongation increased from 3.3 to 12.4%. The ultimate tensile strength of the Fe-14Mn alloy is increased from 480 to 660 MPa due to nitrogen alloying, while the uniform elongation is slightly lowered from 5.1 to 4.1%. The corrosion resistance in 1 N sulphuric acid solution is improved by more than two times in both alloys due to nitrogen alloying. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：213 / 218

页数：6

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