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Characterization of hot deformation behavior of Udimet720Li superalloy using processing map

  • Jian Guo Wang
  • , Dong Liu
  • , Tao Wang
  • , Yan Hui Yang
  • Northwestern Polytechnical University Xian
  • 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

3 引用 (Scopus)

摘要

The deformation behavior of a Udimet720Li superalloy under hot compression tests was characterized in the temperature range of 1060~1160°C and strain rate range of 0.001~20s-1. Processing maps were conducted at a series of strains to calculate the efficiency of hot working and to recognize the instability regions of the flow behavior. A Zener-Hollomon parameter is given to characterize the dependence of peak stress on temperature and strain rate. The efficiency of power dissipation of the Udimet720Li superalloy obtained in a strain range of 0.1~0.7 are essentially similar, which indicates that strain does not have a significant influence and the instability region shown in high strain and high strain rates at all temperatures. The regions for the full recrystallization can be divided by the dissolution beginning temperature of primary γ′ which are the optimum hot working parameters.

源语言英语
主期刊名Advances in Materials and Materials Processing IV
1161-1168
页数8
DOI
出版状态已出版 - 2014
活动2013 4th International Conference on Advances in Materials and Manufacturing, ICAMMP 2013 - Kunming, 中国
期限: 18 12月 201319 12月 2013

出版系列

姓名Advanced Materials Research
887-888
ISSN(印刷版)1022-6680

会议

会议2013 4th International Conference on Advances in Materials and Manufacturing, ICAMMP 2013
国家/地区中国
Kunming
时期18/12/1319/12/13

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