Effect of V Element on the Magnetomechanical Damping of Fe-16Cr-2.5Mo Alloy
XU Xiaoqiang1, XU Yonggang1,2,*
1 Key Laboratory for Advanced Technologies of Materials, The Ministry of Education of China, Southwest Jiao Tong University, Chengdu 610031, China 2 Jiangsu Keda Car Industry Co., LTD, Yangzhou 225800, China
Abstract: In this paper, four Fe-16Cr-2.5Mo damping alloys with different V contents (0%, 0.05%, 0.1%, and 0.2%) were prepared. The microstructure was observed by an optical microscope, and the damping behavior was measured by an inverted torsion pendulum internal friction apparatus. The saturated magnetostriction coefficient was measured by XRD under the condition of applied saturation magnetic field, and the magnetic properties were measured by a vibration sample magnetometer. We demonstrate that the Fe-16Cr-2.5Mo based alloys' unit cell contracts due to the addition of V element. Meanwhile, the strength and toughness of V-added alloys are improved due to the solid solution strengthening and fine grain strengthening caused by the V addition. In the external magnetic field, the addition of V element results in a negative magnetostriction of the alloys. And as the V concentration increases, the absolute value of the magnetostriction coefficient increases and damping capacity is improved.
胥晓强, 胥永刚. V元素对Fe-16Cr-2.5Mo合金磁机械阻尼的影响[J]. 材料导报, 2021, 35(14): 14115-14119.
XU Xiaoqiang, XU Yonggang. Effect of V Element on the Magnetomechanical Damping of Fe-16Cr-2.5Mo Alloy. Materials Reports, 2021, 35(14): 14115-14119.
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2021, Vol. 35 
