材料工程Issue(8)：28-35,8.DOI:10.3969/j.issn.1001-4381.2013.08.005
NiCoCrAlYHf涂层与一种Ni基单晶高温合金循环氧化行为研究
Thermal Cyclic Oxidation Behavior Between NiCoCrAlYHf Bond Coat and a Kind of Ni-based Single Crystal Superalloy
钟锦岩 1牟仁德 1何英 2何利民1
作者信息
- 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
- 折叠
摘要
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).关键词
单晶高温合金/涂层/二次反应区/互扩散Key words
single crystal superalloy/ coating / secondary reaction zone / interdiffusion分类
矿业与冶金引用本文复制引用
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):28-35,8.
