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Effects of Dy on cyclic oxidation resistance of NiAl alloy
  • ISSN号：1003-6326
  • 期刊名称：中国有色金属学会会刊(英文版)
  • 时间：0
  • 页码：1185-1189
  • 语言：中文
  • 分类：TG146.15[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学] TG172.82[金属学及工艺—金属表面处理;金属学及工艺—金属学]
  • 作者机构：[1]Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China, [2]Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • 相关基金：Projects（50731001, 50771009） supported by the National Natural Science Foundation of China; Project（PCSIRT/IRT 0512） supported by the Program for Changjiang Scholars and Innovative Research Team in Chinese University
  • 相关项目：环境自适应超高温长寿命金属防护涂层研究
作者： Wang Xiao-yan|Gong Sheng-kai|Wang Shi-xing|Li Ji|Guo Hong-bo|
关键词： NIAL合金, 循环氧化, 镝掺杂, 扫描电子显微镜, 能量色散谱仪, 氧化性能, 氧化物夹杂, 金属元素, NiAl, reactive element, dysprosium（Dy）, oxidation, adhesion
中文摘要：

NiAl 合金由反应元素(RE ) 修改了，镝(Dy ) ，被弧融化生产。修改合金的微观结构由扫描排放的电子显微镜(FE-SEM ) 与散分光镜(版本) 和背散布的精力装备了的地被调查察觉者。在 1 200 敶挠牡整戠慬据的周期的氧化测试？

英文摘要：

The NiAl alloys modified by reactive element（RE）, dysprosium（Dy）, were produced by arc melting. The microstructures of the modified alloys were investigated by field emission-scanning electron microscope（FE-SEM） equipped with energy dispersive spectroscope（EDS） and back scatter detector. Cyclic oxidation tests at 1 200 ℃ were conducted to assess the cyclic oxidation performance of the alloys. The Dy dopant prevents the surface rumpling of the oxide scale and the formation of cavities beneath the oxide scale. The pegs consisting of Dy-rich oxide inclusion core and an outer alumina sheath develop deeply in the alloy and improve the oxide scale adhesion. 0.05%-0.1% （molar fraction） Dy dramatically improves the cyclic oxidation resistance of the NiAl alloy. Too high concentration of Dy is deleterious because of the fast oxidation rate caused by severe internal oxidation.

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NiAl-RuAl双层结构热障涂层粘结层SRZ抑制关键机理研究
期刊论文 33
环境自适应超高温长寿命金属防护涂层研究
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期刊信息
  • 《中国有色金属学报：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会
  • 主编：黄伯云
  • 地址：中国长沙中南大学
  • 邮编：410083
  • 邮箱：f-xsxb@csu.edu.cn
  • 电话：0731-88830949
  • 国际标准刊号：ISSN：1003-6326
  • 国内统一刊号：ISSN：43-1239/TG
  • 邮发代号:42-317
  • 获奖情况:
  • 国家“双百”期刊,第二届全国优秀科技期刊评比二等奖,中国有色金属工业总公司优秀科技期刊一等奖
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  • 被引量:1159