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材料工程  2013, Vol. Issue (8): 28-35    DOI: 10.3969/j.issn.1001-4381.2013.08.005
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
NiCoCrAlYHf涂层与一种Ni基单晶高温合金循环氧化行为研究
钟锦岩1, 牟仁德1, 何英2, 何利民1
1. 北京航空材料研究院, 北京 100095;
2. 中航工业 西安航空发动机(集团)有限公司, 西安 710021
Thermal Cyclic Oxidation Behavior Between NiCoCrAlYHf Bond Coat and a Kind of Ni-based Single Crystal Superalloy
ZHONG Jin-yan1, MU Ren-de1, HE Ying2, HE Li-min1
1. Beijing Institute of Aeronautical Materials, Beijing 100095, China;
2. AVIC Xi'an Aero-Engine(Group)Ltd., Xi'an 710021, China
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摘要 在第三代Ni基单晶高温合金上制备NiCoCrAlYHf(HY5) 高温抗氧化涂层,采用扫描电镜(SEM),能谱分析(EDS)和X射线衍射(XRD)等手段,对涂层表面及界面进行组织形貌观察和相结构分析,研究涂层试样的循环氧化动力学和元素互扩散行为。结果表明:采用真空电弧镀(AIP)方法制备的HY5涂层,提高了单晶高温合金的循环抗氧化能力;在1100℃大气环境中扩散600h后,涂覆HY5涂层的单晶高温合金基体中形成了互扩散区IDZ,互扩散主要由Cr,Ni元素从基体向高温抗氧化涂层的外扩散以及Al元素从高温抗氧化涂层向基体的内扩散构成;在涂层下方60μm左右有拓扑密堆相TCP析出,并形成二次反应区SRZ。
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钟锦岩
牟仁德
何英
何利民
关键词 单晶高温合金涂层二次反应区互扩散    
Abstract:A metallic protective coating on the third generation single crystal superalloy was investigated. The coating surface, interface morphology and phase structure of the organization were characterized by scanning electron microscopy(SEM),energy dispersion X-ray spectroscopy (EDS) and X-ray diffraction (XRD). Interdiffusion behavior of coatings and cyclic oxidation kinetics were analyzed. A single NiCoCrAlYHf coating was deposited onto the single crystal superalloy by arc ion plating (AIP). The results showed that an interdiffusion zone (IDZ) were formed in Ni-based single crystal superalloy after 600h heat treatment at 1100℃ in the atmospheric environment.The elemental interdiffusion between the coating and the substrate occured as Al diffuse inward from the coating to the substrate and Cr diffuse outward from the substrate to the coating. There were amounts of topologically close-packed phases (TCP) precipitated under coating 60μm in the superalloy and ultimately came into being secondary reaction zone (SRZ).
Key wordssingle crystal superalloy    coating    secondary reaction zone    interdiffusion
收稿日期: 2013-01-14      出版日期: 2013-08-20
中图分类号:  TG174.4  
作者简介: 钟锦岩(1989-),女,硕士研究生,研究方向为高温腐蚀与防护,联系地址:北京市81信箱5分箱(100095),E-mail:825870226@qq.com
引用本文:   
钟锦岩, 牟仁德, 何英, 何利民. NiCoCrAlYHf涂层与一种Ni基单晶高温合金循环氧化行为研究[J]. 材料工程, 2013, (8): 28-35.
ZHONG Jin-yan, MU Ren-de, HE Ying, HE Li-min. Thermal Cyclic Oxidation Behavior Between NiCoCrAlYHf Bond Coat and a Kind of Ni-based Single Crystal Superalloy. Journal of Materials Engineering, 2013, (8): 28-35.
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http://jme.biam.ac.cn/CN/10.3969/j.issn.1001-4381.2013.08.005      或      http://jme.biam.ac.cn/CN/Y2013/V/I8/28
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