Contribution to critical shear stress of nanocomposites produced by interaction of screw dislocation with nanoscale inclusion

Q.H. Fang; Y. Liu; B.Y. Huang; Y.W. Liu; P.H. Wen

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Contribution to critical shear stress of nanocomposites produced by interaction of screw dislocation with nanoscale inclusion

机译：螺旋位错与纳米级夹杂物相互作用产生的纳米复合材料的临界剪切应力的贡献

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The contribution to the critical shear stress of nanocomposites caused by the interaction between screw dislocations and nanoscale circular cylindrical inclusions with interface stresses is derived by means of the Mott and Nabarro's model. The effect of the radius of the nanoscale inclusion and the volume fraction of inclusions as well as the interface stress on the critical shear stress is examined. The most important finding is that, when the negative interface stress is considered, a critical value of the radius of the nanoscale inclusion or the volume fraction of inclusions may exist to gain the best strengthening effects for the second-phase strengthened composites which differs from the classical solution without considering the interface stress under same external conditions.

机译：借助Mott和Nabarro模型，得出了由螺旋位错和纳米级圆柱形夹杂物之间的相互作用引起的纳米复合材料的临界剪切应力的贡献。研究了纳米级夹杂物的半径和夹杂物的体积分数以及界面应力对临界剪切应力的影响。最重要的发现是，当考虑负界面应力时，可能存在纳米级夹杂物半径或夹杂物体积分数的临界值，以获得与第二相增强复合材料不同的最佳增强效果。经典解决方案，无需考虑相同外部条件下的界面应力。

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来源
《Materials Letters》 |2008年第20期|p.3521-3523|共3页
作者
Q.H. Fang; Y. Liu; B.Y. Huang; Y.W. Liu; P.H. Wen;
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作者单位

State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, PR China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
defects; composite materials; screw dislocation; nanoscale inclusion; interface stress;

机译：缺陷;复合材料;螺钉错位;纳米尺度夹杂物;界面应力;

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专利

1. Critical shear stress produced by interaction of edge dislocation with nanoscale inhomogeneity [J] . Q H FANG, J M CHEN, Y W LIU, Bulletin of Materials Science . 2010,第2期

机译：边缘位错与纳米级不均匀性相互作用产生的临界剪切应力
2. Critical shear stress produced by interaction of edge dislocation with nanoscale inhomogeneity [J] . J M Chen, P H Wen, Q H Fang, Bulletin of materials science . 2010,第2期

机译：边缘位错与纳米级不均匀性相互作用产生的临界剪切应力
3. Critical shear stress produced by interaction of edge dislocation with nanoscale inhomogeneity [J] . Q. H. Fang, J. M. Chen, Y. W. Liu, Bulletin of Materials Science . 2010,第2期

机译：边缘位错与纳米级不均匀性相互作用产生的临界剪切应力
4. INTERACTION OF COHERENT NANOSCALE PRECIPITATES WITH SCREW DISLOCATIONS TO LOWER THE PEIERLS STRESS IN LOW CARBON STEELS [C] . Morris E. Fine, Anthony Tongen, Michael S. Gagliano 2003 TMS Annual Meeting, Mar 2-6, 2003, San Diego, California . 2003

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5. Biobased polymer nanocomposites: Contributions from interfacial interactions and shear processing on dispersion and rheology [D] . Chen, Xun 2015

机译：生物基聚合物纳米复合材料：界面相互作用和剪切加工对分散和流变学的贡献
6. Interaction of a screw dislocation with a nano-sized arbitrarily shaped inhomogeneity with interface stresses under anti-plane deformations [O] . Xu Wang, Peter Schiavone -1

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7. The Stresses Produced by a Screw Dislocation Pileup at a Circular Inclusion of Finite Rigidity [O] . Tetelman A. S., Barnett D. M. 1966

机译：有限刚度的圆形夹杂物在螺旋位错堆积中产生的应力
8. The stresses produced by a screw dislocation pileup at a circular inclusion of finite rigidity [R] . Barnett, D. M., Tetelman, A. S. 1966

机译：螺旋位错堆积产生的应力在有限刚度的圆形夹杂物上

Contribution to critical shear stress of nanocomposites produced by interaction of screw dislocation with nanoscale inclusion

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