TiAl合金冷却相变研究进展及细晶组织调控

Jieren Yang; Xiaogan Zhang; Bei Cao; Zitong Gao; Rui Hu; Ruirun Chen

doi:10.15980/j.tzzz.2021.02.003

TiAl合金冷却相变研究进展及细晶组织调控

Jieren Yang, Xiaogan Zhang, Bei Cao, Zitong Gao, Rui Hu, Ruirun Chen

材料学院

科研成果: 期刊稿件 › 文献综述 › 同行评审

摘要

TiAl alloy is the current hot-spot material of lightweight high-temperature structure in aerospace engineering, of which the final microstructure is largely determined by its cooling process. Due to the complexity of the phase diagram and phase transition of TiAl alloys, it has become an important issue to obtain a fine-grained structure by controlling the cooling process for engineering research.The results of cooling transformation of TiAl alloy were reviewed, and the progress in Ti-48Al-4Nb-2Cr alloy was presented including expounding the solidification path and phase transformation behavior of TiAl alloy firstly, then the continuous cooling transformation (CCT) and isothermal cooling transformation (TTT) behaviors. Furthermore, a CCT diagram of Ti-48Al-4Nb-2Cr alloy was established and a fine-grained NL (FGNL) microstructure was obtained.

投稿的翻译标题	Research Progress in Cooling Phase Transformation of TiAl Alloy and Control of Fine-grained Microstructure
源语言	繁体中文
页（从-至）	142-147
页数	6
期刊	Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys
卷	41
期	2
DOI	https://doi.org/10.15980/j.tzzz.2021.02.003
出版状态	已出版 - 20 2月 2021

关键词

CCT
Cooling Phase Transformation
Fine-grained Microstructure
TiAl Alloy
TTT

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10.15980/j.tzzz.2021.02.003

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引用此

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AU - Yang, Jieren

AU - Zhang, Xiaogan

AU - Cao, Bei

AU - Gao, Zitong

AU - Hu, Rui

AU - Chen, Ruirun

PY - 2021/2/20

Y1 - 2021/2/20

N2 - TiAl alloy is the current hot-spot material of lightweight high-temperature structure in aerospace engineering, of which the final microstructure is largely determined by its cooling process. Due to the complexity of the phase diagram and phase transition of TiAl alloys, it has become an important issue to obtain a fine-grained structure by controlling the cooling process for engineering research.The results of cooling transformation of TiAl alloy were reviewed, and the progress in Ti-48Al-4Nb-2Cr alloy was presented including expounding the solidification path and phase transformation behavior of TiAl alloy firstly, then the continuous cooling transformation (CCT) and isothermal cooling transformation (TTT) behaviors. Furthermore, a CCT diagram of Ti-48Al-4Nb-2Cr alloy was established and a fine-grained NL (FGNL) microstructure was obtained.

AB - TiAl alloy is the current hot-spot material of lightweight high-temperature structure in aerospace engineering, of which the final microstructure is largely determined by its cooling process. Due to the complexity of the phase diagram and phase transition of TiAl alloys, it has become an important issue to obtain a fine-grained structure by controlling the cooling process for engineering research.The results of cooling transformation of TiAl alloy were reviewed, and the progress in Ti-48Al-4Nb-2Cr alloy was presented including expounding the solidification path and phase transformation behavior of TiAl alloy firstly, then the continuous cooling transformation (CCT) and isothermal cooling transformation (TTT) behaviors. Furthermore, a CCT diagram of Ti-48Al-4Nb-2Cr alloy was established and a fine-grained NL (FGNL) microstructure was obtained.

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IS - 2

ER -

TiAl合金冷却相变研究进展及细晶组织调控

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