杨文锋

• 1:中国民航飞行学院航空工程学院

摘要(Abstract)：

在1Cr18Ni9Ti型不锈钢基体表面,采用等离子喷涂技术制备Fe-Ni-B(Fe70Ni27B3,wt%)屏蔽涂层。采用X射线衍射(XRD)、扫描电子显微镜(SEM)及能谱仪(EDX)对涂层的微观结构、物相组成及元素分布进行了研究,并对涂层的屏蔽效果进行了测试。结果表明,Fe-Ni-B屏蔽涂层呈均匀的层片状累积结构,具有屏蔽功能的含硼相主要为Fe2B,另外还含有(Fe,Ni)相和少量的Fe7B相。从Fe-Ni-B涂层表面到基体方向,硬度较大的硼化物浓度逐渐降低,相应的硬度也随之减小。Fe-Ni-B涂层能明显提高不锈钢基材的热中子吸收率。

关键词(KeyWords)： 等离子喷涂;Fe-Ni-B屏蔽涂层;微观结构;显微硬度;屏蔽性能

Abstract:

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基金项目(Foundation):

作者(Author): 杨文锋

参考文献(References)：

• [1]吕继新,陈建廷.高效能屏蔽材料铅硼聚乙烯[J].核动力工程,1994,15(4):370-374.LU¨Ji-xin,CHEN Jian-ting.High effective shielding material:lead-boron polyethylene[J].Nuclear Power Engineering,1994,15(4):370-374.
• [2]Buzhinskij O I,Semenets Yu M.Thick boron carbide coatings for protection of tokamak first wall and divertor[J].Fusion Engineering and Design,1999,45:343e-360.
• [3]Doring J E.Properties of plasma sprayed boron carbide protective coatings for the first wall in fusion experiments[J].Journal of Nuclear Materials,2002,307-311:121-125.
• [4]Jin H W.Microstructure and amorphization induced by frictional work in Fe-Cr-B alloy thermal spray coatings[J].Surface and Coatings Technology,1999,113:103-112.
• [5]Jin H W.In situ TEM heating studies on the phase transformation of metastable phases in Fe-Cr-B alloy spray coatings[J].Materials Science and EngineeringA,2001,304-306:321-326.
• [6]Jin H W.Microstructural evolution of the rapidly quenched Fe-Cr-B alloy thermal spray coatings[J].Materials Science and Engineering A,2001,304-306:1069-1074.
• [7]Mepherson R.On the formation of thermally sprayed alumina coatings[J].Journal of Material Science,1980(15):3141-3149.
• [8]段谨源.防辐射纤维及材料研究的发展趋势[J].天津纺织工学院学报,1991,10(2):84-86.DUAN Jing-yuan.Research trend of fibers and composites against radiations[J].Journal of Tianjin Institute of Textile Science and Technology,1991,10(2):84-86.
• [9]Wang M,Yang X Y,Khor K A,et al.Preparation and characterization of bioactive monolayer and functionally graded coatings[J].Journal of MaterialsScience:Materials in Medicine,1999(10):269-273.

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