陈东,曾志辉,丁鹏.钛基 / TiN 涂层接触应力有限元分析[J].表面技术,2014,43(6):59-63.
CHEN Dong,ZENG Zhi-hui,DING Peng.Finite Element Analysis of the Contact Stress of TiN Coating / Ti Alloy Substrate[J].Surface Technology,2014,43(6):59-63 |
| 钛基 / TiN 涂层接触应力有限元分析 |
| Finite Element Analysis of the Contact Stress of TiN Coating / Ti Alloy Substrate |
| 投稿时间：2014-06-17 修订日期：2014-12-10 |
| DOI： |
| 中文关键词: 钛基 TiN 涂层 Hertz 接触 应力分析 有限元 |
| 英文关键词:TiN coating/ Ti alloy substrate Hertz contact stress analysis finite element |
| 基金项目: |
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| Author | Institution |
| CHEN Dong | Product Development and Technology Center, Jiangling Motors Co. , Ltd, Nanchang 330001, China |
| ZENG Zhi-hui | Die Plant, Jiangling Motors Co. , Ltd, Nanchang 330001, China |
| DING Peng | Product Development and Technology Center, Jiangling Motors Co. , Ltd, Nanchang 330001, China |
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| 中文摘要: |
| 目的 研究在接触载荷作用下,钛基/ TiN 涂层的应力变化规律。 方法 利用 ABAQUS 软件建立可靠有限元模型,分析涂层厚度不同的钛基/ TiN 涂层系统在球压头作用下的接触应力。 结果 钛基/TiN 涂层系统最大 Mises 应力出现在距表面约 0. 4a( a 为接触半径)处的亚表层或者亚表层附近的界面处。 在接触应力和弯曲应力作用下,涂层弯曲变形会影响涂层的径向应力和剪应力分布。 结论 在接触载荷作用下,涂层内存在接触应力和自身弯曲两种应力作用。 分析结果有利于理解钛基 TiN 涂层的失效机理。 |
| 英文摘要: |
| Objective To study the stress of TiN coating/ Ti alloy substrate system under contact load. Methods A credible finite element analysis model was established based on ABAQUS, and the contact stress of TiN coating/ Ti alloy substrate system with different coating thicknesses was analyzed in detail under the normal load of a sphere indenter. Results The maximum Mises stress of TiN coating/ Ti alloy substrate system occurred at the sub-surface located about 0. 4a (a is the contact radius) below the surface or at the interface near the sub-surface. Because of the contact and bending stress, the bending deformation of TiN coating affected the radial and shear stress distribution of TiN coating. Conclusion Both contact stress and bending stress were found in the TiN coating/ Ti alloy substrate system under contact load, and the results are helpful for understanding the failure mechanism of TiN coating/ Ti alloy substrate system. |
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