Three-dimensional microstructure-based micromechanical modeling for TC6 titanium alloy
Three-dimensional microstructure-based micromechanical modeling for TC6 titanium alloy
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基于三维微观结构的TC6钛合金微机械建模
DOI：
10.1016/j.msea.2017.01.025
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发表时间：
2017-02
期刊：
影响因子：
--
通讯作者：
Zhang H
中科院分区：
文献类型：
--
作者：
Li G;Shi R;Fan Q;Xia Y;Zhang H
基于微观力学模型，对 TC6 (Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si) 钛合金在单轴拉伸载荷作用下的微观力学响应进行了新的深入评估。该评估包括通过双能微计算机断层扫描重建合金的三维退火微观结构（800°C 退火 2 小时，然后空气冷却）。此外，通过基于同步加速器的原位高能X射线衍射和自洽模型以及纳米压痕测试与有限元建模相结合，确定了组成相的本构关系。结果表明，应力集中从初生α相转移到次生α相，然后转移到β相。此外，当应变从0.00增加到0.05时，产生的应力重新转移到初生α相。这种转移表明初级 α 晶粒中裂纹的萌生。
A new in-depth evaluation of the micromechanical response of TC6 (Ti–6Al–1.5Cr–2.5Mo–0.5Fe–0.3Si) titanium alloy subjected to uniaxial tensile loading is performed based on micromechanical modeling. This evaluation includes reconstruction of the three-dimensional annealed microstructure (annealing at 800 °C for 2 h, then air cooled) of the alloy via dual-energy micro-computed tomography. In addition, constitutive relations of the constituent phases were determined via synchrotron-based in-situ high-energy X-ray diffraction and a self-consistent model as well as nanoindentation tests combined with finite element modeling. The results revealed that the stress concentration was translated from the primary α phase to the secondary α phase, then to the β phase. Moreover, the stress generated was re-transferred to the primary α phase when the strain was increased from 0.00 to 0.05. This transfer is indicative of crack initiation in the primary α grains.
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基于双能X射线显微断层扫描的TC6钛合金三维显微组织模型重建及定量表征
DOI：
10.1016/j.msea.2016.08.078
发表时间：
2016-10
期刊：
Materials Science and Engineering A
影响因子：
--
作者：
Li G;Shi R;Fan Q;Xia Y;Zhang H
通讯作者：
Zhang H
影响因子：
5.4
作者：
M. Ohata;M. Suzuki;A. Ui;F. Minami
通讯作者：
M. Ohata;M. Suzuki;A. Ui;F. Minami
DOI：
10.1016/j.msea.2015.12.065
发表时间：
2016-01
影响因子：
6.4
作者：
E. Ghasemi;A. Zarei‐Hanzaki;S. Moemeni;M. Ghambari;M. Rezaee
通讯作者：
E. Ghasemi;A. Zarei‐Hanzaki;S. Moemeni;M. Ghambari;M. Rezaee
影响因子：
8.4
作者：
Sawitree Sodjit;V. Uthaisangsuk
通讯作者：
Sawitree Sodjit;V. Uthaisangsuk
影响因子：
4.7
作者：
Miaoquan Li;A. Xiong;Weichao Huang;Hairong Wang;S. Su;L. Shen
通讯作者：
Miaoquan Li;A. Xiong;Weichao Huang;Hairong Wang;S. Su;L. Shen