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冷却速率对FeCuNbSiB合金磁学和耐腐蚀性能影响的研究
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1.潍坊学院机电与车辆工程学院;2.山东省港口集团 青岛;3.山东大学材料液固结构演变与加工教育部重点实验室

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TM271+.2, O484.4+3,TQ152

基金项目:

山东省重点研发计划项目No. 2019GGX102016


Effect of cooling rates on the magnetic and corrosion resistance properties of FeCuNbSiB alloys
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key research and development project of Shandong Province (2019GGX102016)

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    摘要:

    通过X射线衍射仪(XRD),振动样品磁强计(VSM),电化学工作站以及扫描电子显微镜(SEM)等实验方法对辊速为14.65m/s和43.96 m/s旋淬制备的Fe73.5Si13.5B9Cu1Nb3(C1和 C2)合金条带进行了测试分析。XRD结果显示,低冷速下制备获得了非晶/纳米晶双相(C1)合金,高冷速制备的合金(C2)为非晶态。VSM结果显示C1和C2合金均具有优异的软磁性能。低冷速制备的纳米晶(C1)合金相比高冷速制备的非晶态(C2)合金具有较强的磁各向异性,C1合金磁各向异性的增强是由纳米晶相的键对有序性以及纳米晶相与非晶基体相互作用引起的磁弹各向异性所致。合金的电化学测试显示,C2合金耐腐蚀性能要好于C1合金,合金腐蚀性能的变化与制备过程中不同冷速所导致的合金的表面组织结构和应力不均匀性相关。

    Abstract:

    The Fe73.5Si13.5B9Cu1Nb3 alloy ribbons fabricated at circumference speed of 14.65 and 43.96 m/s (labeled as C1 and C2) have investigated by XRD, VSM, electrochemical workstation and SEM. The XRD results show that the low cooling rate sample (C1) has a nanocrystalline/amorphous dual-phase structure and the high cooling rate sample (C2) has an amorphous structure. VSM results show that both C1 and C2 alloy have excellent soft magnetic properties, and C1 alloy shows a strong magnetic anisotropy, which induced by both the ordered atomic bonds of nanocrystalline phase and strong interaction between the nanocrystalline phase and amorphous matrix. The electrochemical polarization test results show that the corrosion resistance property of C2 alloy is better than that of C1 alloy,which is attribute to the heterogeneity structure and internal stress in the ribbon surface formed on the spinning process.

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马海健,安邦,魏文庆,神祥博,鲍文科,王伟民.冷却速率对FeCuNbSiB合金磁学和耐腐蚀性能影响的研究[J].稀有金属材料与工程,2021,50(2):595~599.[MA HAIJIAN, AN BANG, WEI WENQING, SHEN XIANGBO, BAO WENKE, WANG WEIMIN. Effect of cooling rates on the magnetic and corrosion resistance properties of FeCuNbSiB alloys[J]. Rare Metal Materials and Engineering,2021,50(2):595~599.]
DOI:10.12442/j. issn.1002-185X.20200676

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  • 收稿日期:2020-09-06
  • 最后修改日期:2020-09-25
  • 录用日期:2020-10-21
  • 在线发布日期: 2021-03-09
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