A Comparative Study on Crystal Structure and Magnetic Properties of Fe-Mn-Si and Fe-Mn-Si-Cr Alloys
A Comparative Study on Crystal Structure and Magnetic Properties of Fe-Mn-Si and Fe-Mn-Si-Cr Alloys
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DOI：
10.1007/s10948-012-1841-5
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发表时间：
2013-04-01
影响因子：
1.8
通讯作者：
Balo, S. Nevin
中科院分区：
文献类型：
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作者：
Balo, S. Nevin
本文利用X射线衍射仪和物理性能测试系统对Fe-30Mn-6Si(wt.%)和Fe-30Mn-6Si-5Cr(wt.%)合金的晶体结构和磁性能进行了比较。室温下的详细衍射图分析表明，不加铬样品中含有奥氏体相和马氏体相，而加铬样品中的马氏体相消失。根据显微硬度测量，铬的存在降低了合金的硬度。测得Fe-30Mn-6Si(wt.%)合金的室温磁饱和值为11.32emu/g，Fe-30Mn-6Si-5Cr(wt.%)合金的室温磁饱和值为18.34emu/g。添加铬提高了FeMnSi合金的磁饱和饱和值，但两种体系的磁滞回线都很窄。结果表明，两种合金均表现出软磁特性。
In this study, the crystal structure and magnetic properties of Fe-30Mn-6Si (wt.%) and Fe-30Mn-6Si-5Cr (wt.%) alloys were compared by using X-Ray Diffraction (XRD) and Physical Properties Measurement System (PPMS) measurements. Detailed analysis of diffractograms at room temperature demonstrates that the Cr-free sample contains austenite and martensite phases, but for Cr-added sample the martensite phase disappears. According to micro hardness measurements, the presence of chromium decreased the hardness of the alloy. The magnetic saturation values at room temperature were measured as 11.32 emu/g for Fe-30Mn-6Si (wt.%) alloy and 18.34 emu/g for Fe-30Mn-6Si-5Cr (wt.%) alloy. The addition of Cr increased the magnetic saturation value of FeMnSi alloy while for both systems the hysteresis loop was quite narrow. As a result, both alloys exhibited soft magnetic characteristic.