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2 article(s) from Qiu, Ren-Zheng

Fatigue crack growth characteristics of Fe and Ni under cyclic loading using a quasi-continuum method

Ren-Zheng Qiu,
Yi-Chen Lin and
Te-Hua Fang

Beilstein J. Nanotechnol. 2018, 9, 1000–1014, doi:10.3762/bjnano.9.93

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Figure 1: (a) Diagrams showing the physical models of Fe and Ni used in the simulations. (b) Diagram showing ...

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Figure 2: Force–distance curve of Ni under two times of cyclic loading, where the tension and compression dis...

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Figure 3: Crack growth and expansion diagrams of Ni under the first cyclic loading at different moving distan...

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Figure 4: Crack growth and expansion diagrams of Ni during the second cyclic loading at different moving dist...

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Figure 5: Force–distance curve of Ni under ten times of cyclic loading, where the first tension distance of t...

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Figure 6: Crack growth and expansion diagrams of Ni corresponding to the observation positon a–f annotated in ...

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Figure 7: Force–distance curve of Fe under two times of cyclic loading, where the tension and compression dis...

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Figure 8: Crack growth and expansion diagrams of Fe under the first cyclic loading at different moving distan...

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Figure 9: Crack growth and expansion diagrams of Fe under the second cyclic loading at different moving dista...

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Figure 10: Force–distance curve of Fe under ten times of cyclic loading, where the first tension distance of t...

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Figure 11: Crack growth and expansion diagrams of Fe corresponding to the observation positons a–f annotated i...

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Figure 12: Comparison between the growth of crack length for Ni and Fe under ten times of cyclic loading.

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Figure 13: Force–distance curve of Ni under ten times of cyclic loading, where the first shear distance of the...

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Figure 14: Crack growth and expansion diagrams of Ni corresponding to the observation positions a–f in Figure 13.

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Figure 15: Force–distance curve of Fe under ten times of cyclic loading, where the first shear distance of the...

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Figure 16: Crack growth and expansion diagrams of Fe corresponding to the observation positons a–f annotated i...

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Figure 17: Force–distance curve of Ni along orientation I (black dashed line) and orientation II (red line) un...

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Figure 18: Crack growth and expansion diagrams of Ni along orientation II corresponding to the observation pos...

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Figure 19: Force–distance curves of Fe along the orientation I (black dashed line) and orientation II (red lin...

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Figure 20: Crack growth and expansion diagrams of Fe along the orientation II corresponding to the observation...

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Full Research Paper

Published 27 Mar 2018

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Molecular dynamics simulations of nanoindentation and scratch in Cu grain boundaries

Shih-Wei Liang,
Ren-Zheng Qiu and
Te-Hua Fang

Beilstein J. Nanotechnol. 2017, 8, 2283–2295, doi:10.3762/bjnano.8.228

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Figure 1: Physical model diagrams of (a) transverse grain boundary indentation, (b) vertical grain boundary i...

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Figure 2: The slip vector diagrams of the transverse grain boundary with the different angles of (a) θ = 10°,...

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Figure 3: The slip vector diagrams of the transverse grain boundary with the different angles of (a) θ = 10°,...

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Figure 4: The atomic flow diagrams of the transverse grain boundary with the different angles of (a) θ = 10°,...

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Figure 5: The slip vector diagrams of the transverse grain boundary with the (a) 3 layers, (b) 4 layers, and ...

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Figure 6: The slip vector diagrams of the transverse grain boundary with the (a) 3 layers, (b) 4 layers, and ...

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Figure 7: The atomic flow diagrams of the transverse grain boundary with the (a) 3 layers, (b) 4 layers, and ...

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Figure 8: The normal force versus time for the transverse grain boundary with 3, 4 and 6 layers for an indent...

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Figure 9: The slip vector diagrams of the vertical grain boundary with the different angles of (a) θ = 10°, (...

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Figure 10: The slip vector diagrams of the vertical grain boundary with the different angles of (a) θ = 10°, (...

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Figure 11: The von Mises stress diagrams of the vertical grain boundary with the different angles of (a) θ = 1...

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Figure 12: The normal force versus time for the vertical grain boundary with different angles of θ = 10–40° fo...

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Figure 13: The slip vector diagrams of the vertical grain boundary with the different angles of (a) θ = 10°, (...

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Figure 14: The atomic flow diagrams of the vertical grain boundary with the different angles of (a) θ = 10°, (...

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Figure 15: The tangential force versus time for the vertical grain boundary at different angles θ = 10–40° for...

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Figure 16: The average resistance coefficient versus the different angles for a scratch of 5 nm.

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Full Research Paper

Published 01 Nov 2017

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