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Thermal cycle fatigue behaviors of a single crystal Ni3Al base alloy

  • Fulin Li
  • , Shusuo Li*
  • , Yuxiao Wu
  • , Liwu Jiang
  • , Yafang Han
  • *此作品的通讯作者
  • Beihang University
  • University of Science and Technology Beijing
  • Beijing Institute of Aeronautical Materials

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The thermal cycle fatigue behaviors of a single crystal Ni3Al base alloy named as IC6SX have been investigated under the test condition of 1000°C←→15°C. The experimental results showed that the thermal fatigue resistance of the transversal specimens of the alloy was superior to that of the longitudinal specimens. The cracks of the specimens propagated along the interdendritic region more easily than the dendrite, and might pass through the dendrite due to the accumulation of the thermal strain. Optical Microscopy (OM) and Electron Probe X-ray Microanalysis (EPXM) were adopted to observe the crack growth and the microstructural evolution, and composition near the fatigue crack, respectively. The mechanism of the thermal fatigue damage of the alloy was discussed.

源语言英语
主期刊名2011 Chinese Materials Conference
出版商Elsevier Ltd
1141-1149
页数9
ISBN(印刷版)9781627485838
DOI
出版状态已出版 - 2012

出版系列

姓名Procedia Engineering
27
ISSN(印刷版)1877-7058

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