Recent advances in modeling fatigue cracks at microscale in the presence of high density coherent twin interfaces
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- 作者：Piyas Chowdhurya ; Huseyin Sehitoglua ; huseyin@illinois.edu" class="auth_mail" title="E-mail the corresponding author ; Richard Rateickb
- 关键词：Fatigue crack growth ; Twin boundary ; Slip transfer ; Nanostructured materials ; Residual slip
- 刊名：Current Opinion in Solid State & Materials Science
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：20
- 期：3
- 页码：140-150
- 全文大小：3441 K
文摘
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Experimentally, nano-twinned alloys demonstrate superior fatigue resistance.
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Details of slip-twin boundary reactions are examined atomistically.
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Energy barriers for slip transfer mechanisms are quantified.
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Friction stresses for reactions are predicted using the above energies.
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Dislocation based fatigue crack growth model is proposed with atomistic input.