Derivation of the Johnson-Samwer T~(2/3) temperature dependence of the yield strain in metallic glasses

Ratul Dasgupta; Ashwin Joy; H. G. E. Hentschel; Itamar Procaccia

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Derivation of the Johnson-Samwer T~(2/3) temperature dependence of the yield strain in metallic glasses

机译：金属玻璃屈服应变的Johnson-Samwer T〜（2/3）温度依赖性的推导

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Metallic glasses are prone to fail mechanically via a shear-banding instability. In a remarkable paper Johnson and Samwer demonstrated that this failure enjoys a high degree of universality in the sense that a large group of metallic glasses appears to possess a yield strain that decreases with temperature following a — T2/i law up to logarithmic corrections. In this Rapid Communication we offer a theoretical derivation of this law. We show that our formula fits very well simulation data on typical amorphous solids.

机译：金属玻璃由于剪切带的不稳定性而容易发生机械故障。 Johnson和Samwer在一篇引人注目的论文中证明，这种失效具有高度的普遍性，因为大组金属玻璃似乎具有屈服应变，屈服应变会随温度的升高而降低，遵循-T2 / i律直至对数校正。在本快速交流中，我们提供了该定律的理论推导。我们证明了我们的公式非常适合典型无定形固体的模拟数据。

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来源
《Physical review》 |2013年第2期|020101.1-020101.4|共4页
作者
Ratul Dasgupta; Ashwin Joy; H. G. E. Hentschel; Itamar Procaccia;
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作者单位

Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel;

Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel;

Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel,Department of Physics, Emory University, Atlanta, Georgia, USA;

Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel;

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正文语种 eng
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关键词
fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure;

机译：疲劳;腐蚀疲劳;脆化;破裂;断裂和破坏;

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1. Dependence of shear yield strain and shear transformation zone on the glass transition temperature in thin film metallic glasses [J] . Qian X., Cao Q. P., Liu S. Y., Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2015,第Null期

机译：薄膜金属玻璃的剪切屈服应变和剪切转变区与玻璃化转变温度的关系
2. Temperature, Strain and Strain Rate Dependence of Serrated Flow in Bulk Metallic Glasses [J] . Florian H. Dalla Torre, Alban Dubach, Adrienne Nelson Materials transactions . 2007,第7期

机译：大块金属玻璃中锯齿状流动的温度，应变和应变率依赖性
3. Yield strength and yield strain of metallic glasses and their correlations with glass transition temperature [J] . Qu R. T., Liu Z. Q., Wang R. F., Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2015,第Null期

机译：金属玻璃的屈服强度和屈服应变及其与玻璃化转变温度的关系
4. Temperature dependence of the yield strain of a Zr-based metallic glass at the glassy state [C] . Hidemi Kato, rnHitoshi Igarashi, rnAkihisa Inoue Journal of alloys and compounds : An interdisciplinary journal of materials science and solid-state chemistry and physics . 2007

机译：Zr基金属玻璃在玻璃态下屈服应变的温度依赖性
5. Length scale dependence and reliability of x-ray strain measurements in metallic glasses. [D] . Vempati, Udaya K. 2011

机译：金属玻璃中长度标度的依赖性和X射线应变测量的可靠性。
6. Positive and Negative Temperature Dependence in the Resistivity of Crystallized Zr-Fe-Ni Metallic Glasses [O] . Fathalla Hamed 2010

机译：Zr-Fe-Ni金属化玻璃电阻率的正负温度依赖性
7. Derivation of the Johnson-Samwer $T^{(2/3)}$ Temperature Dependence of the Yield Strain in Metallic Glasses [O] . Dasgupta Ratul, Joy Ashwin, Hentschel H. G. E., 2012

机译：Johnson-samwer $ T ^ {（2/3）} $温度依赖性的推导金属玻璃中的屈服应变
8. Temperature Dependence of the Positron Diffusion Length in Metallic Glasses as Studied by Variable-Energy-Positrons [R] . Vehanen, A., Lynn, K. G., Schultz, P. J., 1982

机译：用可变能量 - 正电子研究金属玻璃中正电子扩散长度的温度依赖性

Derivation of the Johnson-Samwer T~(2/3) temperature dependence of the yield strain in metallic glasses

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