Modeling dislocation cutting the precipitate in nickel-based single crystal superalloy via the discrete dislocation dynamics with SISF dissociation scheme
Modeling dislocation cutting the precipitate in nickel-based single crystal superalloy via the discrete dislocation dynamics with SISF dissociation scheme
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通过 SISF 解离方案的离散位错动力学模拟位错切割镍基单晶高温合金中的沉淀物
DOI：
10.1016/j.commatsci.2013.02.026
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发表时间：
2013-07
影响因子：
3.3
通讯作者：
Minsheng Huang
中科院分区：
文献类型：
--
作者：
Hui Yang;Zhenhuan Li;Minsheng Huang
为了充分捕获位错，（γ′相）在镍基单晶高温合金中在宽的温度范围内使用，在三维离散位错动力学（3D-DDD）模拟框架中引入了超晶格本征层错（SISF）离解方案，并采用了一个基于总能量的反相界（APB）跃迁判据SISF 1的解离方案。计算结果表明，目前的3D-DDD扩展可以成功地捕捉到从APB到SISF解离过渡的两个关键阶段。该扩展的3D-DDD框架还用于预测镍基单晶高温合金在293 K和873 K两个典型温度下的整体应力-应变响应。与仅考虑APB解离的3D-DDD框架预测的应力-应变曲线相比，同时考虑SISF和APB解离的扩展3D-DDD框架预测的应力-应变曲线更接近实验数据。
In order to fully capture dislocation cutting the precipitate (γ′ phase) in the nickel-based single crystal superalloy servicing in a wide range of temperatures, the superlattice intrinsic stacking fault (SISF) dissociation scheme is introduced into the three-dimensional discrete dislocation dynamics (3D-DDD) simulation framework by employing a total energy-based criterion for the transition from anti-phase boundary (APB) dissociation scheme to SISF one. The computational results show that the present 3D-DDD extension can successfully capture two key stages of the transition from APB to SISF dissociation. This extended 3D-DDD framework is also used to predict the overall stress–strain response of nickel-based single crystal superalloys at two typical temperatures 293K and 873K. Compared with the stress–strain curves predicted by the 3D-DDD framework only with consideration of APB dissociation scheme, the results by this extended 3D-DDD framework with consideration of both SISF and APB dissociations are closer to experimental data.
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DOI：
10.1002/pssa.2210890116
发表时间：
1985-05
期刊：
Physica Status Solidi (a)
影响因子：
--
作者：
I. Baker;E. Schulson
通讯作者：
I. Baker;E. Schulson
DOI：
10.1016/0001-6160(87)90102-7
发表时间：
1987-07
期刊：
Acta Metallurgica
影响因子：
--
作者：
M. Yoo
通讯作者：
M. Yoo
影响因子：
9.4
作者：
J. X. Zhang;T. Murakumo;Y. Koizumi;Toshiharu Kobayashi;H. Harada
通讯作者：
J. X. Zhang;T. Murakumo;Y. Koizumi;Toshiharu Kobayashi;H. Harada
DOI：
10.1088/0965-0393/18/1/015005
发表时间：
2009
影响因子：
1.8
作者：
T. Tinga;W. Brekelmans;Mgd Marc Geers
通讯作者：
T. Tinga;W. Brekelmans;Mgd Marc Geers
影响因子：
3.2
作者：
Davoudi, Kamyar M.;Nicola, Lucia;Vlassak, Joost J.
通讯作者：
Vlassak, Joost J.