Effect of melt overheating history on the microstructure of Ni-base single crystal superalloy

M. M. Zou, J. Zhang, B. Li, L. J. Zhu, L. Liu, H. Z. Fu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

With the unchanged thermal gradient and withdrawal speed, the effect of melt overheating history on the microstructure of Ni-base single crystal superalloy is investigated. The results show that the dendrite structure and γ' phase in interdendritic area is obviously refined when overheating temperature increased from 1500 °C to 1640 °C and then to 1780 °C However, the microstructure is coarsen with the holding time is increased from 30 min to 45min and then to 60min when melt is overheated at 1780 for 30min.

Original languageEnglish
Title of host publicationHigh Performance Structures and Materials Engineering
Pages692-696
Number of pages5
DOIs
StatePublished - 2011
Event2011 1st International Conference on High Performance Structures and Materials Engineering, ICHPSM 2011 - Beijing, China
Duration: 5 May 20116 May 2011

Publication series

NameAdvanced Materials Research
Volume217-218
ISSN (Print)1022-6680

Conference

Conference2011 1st International Conference on High Performance Structures and Materials Engineering, ICHPSM 2011
Country/TerritoryChina
CityBeijing
Period5/05/116/05/11

Keywords

  • γ' phase
  • Dendrite structure
  • Melt overheating history
  • Ni-base single crystal superalloy

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