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金属学报  2005, Vol. 41 Issue (10): 1013-1019     
  论文 本期目录 | 过刊浏览 |
热喷涂FeAl涂层中纳米晶结构的XRD分析
嵇 罡 T. Grosdidier (高泰瑞) A. Tidu 邹建新 董 闯
Laboratoire d’Etudes et de Recherches sur les Matériaux; les Procédés et les Surfaces; EA 3316; Université de Technologie de Belfort-Montbéliard; Site de Sevenans; 90010 Belfort Cedex; France
引用本文:

嵇; 罡; T.Grosdidier; 高泰瑞; A.Tidu ; 邹建新; 董闯 . 热喷涂FeAl涂层中纳米晶结构的XRD分析[J]. 金属学报, 2005, 41(10): 1013-1019 .

全文: PDF(394 KB)  
摘要: 利用超音速火焰喷涂(HVOF)和大气等离子喷涂(APS)工艺分别喷涂了雾化(微米结构的)以及球磨(纳米结构的)Fe—Al粉末制备了不同结构的涂层。两种原料粉末和喷涂工艺均引起涂层的XRD峰异常宽化。由宽化峰给出的晶粒尺寸与TEM测出的晶粒尺寸有较大的差异。结合SEM、电子探针以及TEM的测试结果, 同时考虑到涂层中形成的结构缺陷以及化学成分的不均匀性,证实异常宽化来自喷涂过程中由于Al的耗损导致的FeAl相中Al的成分不均匀分布。
关键词 FeAl基涂层热喷涂纳米晶结构    
Key words
收稿日期: 2005-04-06     
ZTFLH:  TG174  
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