Quick Search:       Advanced Search
姚敬,鲁世强,肖璇,李贵发,邓莉萍,陈德志.Nd2O3对TaCr2合金组织和抗氧化性能的影响[J].稀有金属材料与工程(英文),2019,47(3):1015~1021.[Yao Jing,Lu Shiqiang,Xiao Xuan,Li Guifa,Deng Liping and Chen Dezhi.Effect of Nd2O3 on Microstructure and Oxidation Behavior of TaCr2 alloys[J].Rare Metal Materials and Engineering,2019,47(3):1015~1021.]
Effect of Nd2O3 on Microstructure and Oxidation Behavior of TaCr2 alloys
Download Pdf  View/Add Comment  Download reader
Received:October 20, 2018  Revised:November 13, 2018
DOI:
Key words: Laves phase TaCr2  Nd2O3  microstructure  oxidation resistance
Foundation item:国家自然科学基金(项目号No. 51074092和No. 51161020),航空科学基金(2015ZF56024)资助。
Author NameAffiliation
Yao Jing,Lu Shiqiang,Xiao Xuan,Li Guifa,Deng Liping and Chen Dezhi  
Hits: 35
Download times: 24
Abstract:
      TaCr<sub>2</sub>-xNd<sub>2</sub>O<sub>3</sub> (x=0, 0.125, 0.25, 0.5 and 0.75at%) alloys have been prepared by mechanical alloying + hot pressing. The effects of Nd<sub>2</sub>O<sub>3</sub> on the microstructure and oxidation resistance of te TaCr<sub>2</sub> alloy have been investigated. The results show that Nd<sub>2</sub>O<sub>3</sub> mainly exists in Ta solid solution, and has no significant effect on the phase components and crystal form of the alloy. The alloys are composed of TaCr<sub>2</sub>, a small amount of Ta-rich phase and Cr solid solution. The addition of Nd<sub>2</sub>O<sub>3</sub> reduced the oxidation weight gain of TaCr<sub>2 </sub>alloy at 1200 °C; the oxide film showed a discontinuous multilayer distribution, and Nd<sub>2</sub>O<sub>3</sub> promoted the stratification of the oxide phase.