Transactions of Materials and Heat Treatment

Title：Recrystallization behavior of nickelbase alloy 690 during hot deformation process

Authors： YANG Liang DONG Jian-xin ZHANG Mai-cang

Unit： University of Science and Technology Beijing

KeyWords： alloy 690 hot deformation dynamic recrystallization recrystallization diagram

ClassificationCode：TG174.2

year,vol(issue):pagenumber：2012,37(2):139-142

Abstract：

The recrystallization behavior of alloy 690 was investigated through thermal physics simulation, and the recrystallization diagram of alloy 690 was established using quantitative metallographic method. The results show that obvionsly dynamic recrystallization of alloy 690 is occurred during hot deformation, and deformation parameters have important influences on microstructure for alloy 690. The strain rate of 1s-1 is a very important critical point in which the dynamic recrystallization volume is the least. The recrystallization diagram can provide a basis for the development of alloy 690 hot working process parameters.

Funds：

国家自然科学基金资助项目（50831008）

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