Effect of domain variations on damping capacity of Fe–16Cr–2.5Mo alloy solution annealed at 1373 K and 1473 K
Effect of domain variations on damping capacity of Fe–16Cr–2.5Mo alloy solution annealed at 1373 K and 1473 K
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DOI：
10.1016/j.jmmm.2010.11.023
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发表时间：
2011-03
影响因子：
2.7
通讯作者：
Yong-gang Xu;L. Ning;Y. Wen
中科院分区：
文献类型：
--
作者：
Yong-gang Xu;L. Ning;Y. Wen
研究了不同热处理温度下Fe-16 Cr-2.5Mo合金的阻尼性能。水基磁流体被用来分析畴形态。实验结果表明，当固溶退火温度为1373 K时，材料的阻尼性能有一个最大值。退火温度越高，合金的阻尼性能下降越快。阻尼能力随固溶退火温度的变化被认为是由于不同的域形态。在较高温度下退火的合金中，畴变大，畴壁面积变小。尽管90°畴的运动很容易，但楔形畴充当了钉扎畴壁运动的障碍。结果，当退火温度很高时，合金的阻尼能力下降。
The damping capacity of Fe–16Cr–2.5Mo alloy heat-treated at different temperatures was investigated. A water-based magnetic fluid was used to analyze domain morphologies. The experimental results show that there is a maximum value of damping capacity when the solution annealing temperature of the material is 1373K. When the annealing temperature is higher, the damping capacity of the alloy drops quickly. The change in damping capacity with the solution annealing temperature is believed to be due to different domain morphologies. The domains are larger and the domain-wall area is smaller in the alloy annealed at a higher temperature. The wedge-shaped domains acted as obstacles for pinning the domain-wall movement, even though movement of the 90° domains is easy. As a result, the damping capacity of the alloys drops when the annealing temperature is very high.