Effect of thermomechanical processing on microstructure characteristics of γ-TiAl-based alloy
Effect of thermomechanical processing on microstructure characteristics of γ-TiAl-based alloy
复制标题
形变加工对γ-TiAl基合金显微组织特性的影响
DOI：
10.1080/02670836.2022.2068259
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发表时间：
2022-05
影响因子：
1.8
通讯作者：
Sen Yang
中科院分区：
文献类型：
--
作者：
Yaodong Xuanyuan;Chengcheng Lv;Cai Chen;Yinbiao Yan;Sen Yang
本研究通过热机械加工工艺改变了γ-TiAl基合金的晶界特征分布。进行了压缩试验，以确定晶界工程(GBE)处理对材料力学性能的改善。经多向等温锻造和退火后，合金的平均晶粒尺寸细化到20µm，低Σ(1≤Σ≤29)重合格晶界的长度比增加到64.01%，由于晶界和位错的强化机制，合金具有较高的抗压强度(2913 Mpa)和最大压缩比(45.3%)。因此，MDIF和退火法相结合可用于γ-TiAl基合金的细化和调谐。
In this study, the grain boundary character distribution (GBCD) of the γ-TiAl-based alloy was modified through the thermomechanical processing route. A compression test was conducted to identify the mechanical property improvements based on the grain boundary engineering (GBE) treatment. After multidirectional isothermal forging (MDIF) and annealing, the average grain size was refined to 20 µm. The length ratio of the low Σ (1 ≤ Σ ≤ 29) coincidence site lattice (CSL) boundaries increased to 64.01%, with the alloy exhibiting a higher compressive strength (2913 MPa) and maximum compression ratio (45.3%), owing to the strengthening mechanism of grain boundaries and dislocations. Consequently, the combination of MDIF and annealing could be used for grain refinement and tuning GBCD of γ-TiAl-based alloys.
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影响因子：
5.7
作者：
J. Pouchou;A. Denquin;A. Ferrini
通讯作者：
J. Pouchou;A. Denquin;A. Ferrini
影响因子：
5
作者：
Koch, CC;Morris, DG;Inoue, A
通讯作者：
Inoue, A
影响因子：
6
作者：
E. M. Lehockey;G. Palumbo;K. T. Aust;U. Erb;P. Lin
通讯作者：
E. M. Lehockey;G. Palumbo;K. T. Aust;U. Erb;P. Lin
DOI：
10.1016/j.msea.2014.03.116
发表时间：
2014-06
影响因子：
6.4
作者：
I. Shakhova;Z. Yanushkevich;I. Fedorova;A. Belyakov;R. Kaibyshev
通讯作者：
I. Shakhova;Z. Yanushkevich;I. Fedorova;A. Belyakov;R. Kaibyshev
DOI：
10.1007/bf02648536
发表时间：
1981-01-01
期刊：
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
影响因子：
--
作者：
REMY, L
通讯作者：
REMY, L