| 引用本文: | 朱有利,任浩,马世宁,徐滨士,库日多夫斯基.脆性薄膜表面微裂纹对基体次表面后继塑性的影响[J].中国表面工程,2000,(4):15~18 |
| .Effects of Surface Micro-crack of a Brittle Thin Hard Film on the Subsequent Plasticity Behaviors in Sublayer of Substrate[J].China Surface Engineering,2000,(4):15~18 |
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| 摘要: |
| 采用有限元法分析了具有微裂纹的表面脆性薄膜对高速工具钢基体的屈服和后继塑性行为的影响，特别研究了基体材料的塑性硬化指数以及裂纹纹深度对最大塑性应变和塑性区尺寸的影响，同时考察了屈服载荷以及塑性区尺寸随裂纹深度的影响。 |
| 关键词: 薄膜 微裂纹 塑性变形 有限元法 高速钢 |
| DOI： |
| 分类号:TG142.45 TG111 |
| 基金项目:中国科学院资助项目? |
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| Effects of Surface Micro-crack of a Brittle Thin Hard Film on the Subsequent Plasticity Behaviors in Sublayer of Substrate |
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Zhu Youli Ren Hao Ma Shining Xu Binshi Kurzydowski K J
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| Abstract: |
| The effects of a brittle thin hard film with micro-cracks on the yielding and subsequent plasticity behaviors of the high speed steel substrate were analyzed by the finite element method.Special attention was given to the effects of the plastic hardening parameter and the crack depty on the maximum equivalent plastic strain and the size of the local plastic zone. The variation of the critical yielding stress and the size of plastic zone wity crack depth were also investigated. |
| Key words: thin film, micro-crack,plasticity behaviors,finite element met(, |
