Investigation of the effect of alloying elements on damping capacity and magnetic domain structure of Fe-Cr-Al based vibration damping alloys

被引：25

作者：

Duan, Lian ^{[1
]}

Pan, Dong ^{[1
,2
]}

Wang, Hui ^{[2
,3
]}

Wang, Jun ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mfg Sci & Engn, Chengdu 610065, Peoples R China

[2] Nucl Power Inst China, Sci & Technol Reactor Fuel & Mat Lab, Chengdu 610041, Peoples R China

[3] Sci & Technol Surface Phys & Chem Lab, POB 9-35, Jiangyou City 621908, Sichuan Provinc, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 695卷

基金：

中国博士后科学基金;

关键词：

Fe-Cr-Al based alloys; Internal friction; Magnetic domain structure; Alloying elements; Ferromagnetic damping; INTERNAL-STRESS DISTRIBUTION; HEAT-TREATMENT; GRAIN-SIZE; HYSTERESIS;

D O I：

10.1016/j.jallcom.2016.10.297

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe-13Cr-2Al-1Si damping alloys with high damping capacity were chosen as the research object in this study. 0.5Cu+0.5Mo and 0.5Ti+0.5Mo replaced 1Si without variation in other component contents. The paper investigated the effect of alloying elements Cu, Mo and Ti on the microstructure, damping capacity and magnetic domain structure of Fe-13Cr-2Al-1Si alloys. The results indicated that the alloy elements Cu, Mo, and Ti had no effect on the phase structure and microstructure of Fe-13Cr-2Al-1Si damping alloys. However, after the replacement of 1Si by 0.5Cu+0.5Mo and 0.5Ti+0.5Mo respectively, "dendritic" magnetic domain structure could be easily observed in the alloys and the alloys could keep high damping behavior in a wider range of strain amplitude. Besides, it is shown that after adding alloy elements, the damping behavior of Fe-13Cr-2Al-1Si alloys was somewhat different from that of traditional ferromagnetic alloys. In high strain amplitude region there was ferromagnetic damping as well as static hysteresis dislocation internal friction, which might affect the alloy damping capacity. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：1547 / 1554

页数：8

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