| 氢对金属中裂纹形核的影响 |
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| 引用本文： | 徐颖,王正东.氢对金属中裂纹形核的影响[J].应用力学学报,1996,13(1):42-47. |
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| 作者姓名： | 徐颖 王正东 |
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| 作者单位： | 上海交通大学，华东理工大学 |
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| 摘 要： | 本文建立了金属中裂纹形核的一个理论模型，通过理论分析，讨论了氢对裂纹形核的影响。定义了与材料晶粒和脆性沉淀物尺寸有关的材料影响参数。结果表明，本文提出的模型有更明确的物理意义，环境中的氢参加裂纹形核和生长的三个阶段。
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| 关 键 词： | 裂纹 形核 氢 |
Influence of Hydrogen on Nucleation of Cracks in Metal |
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| Xu Ying,He Pengfei,Liu Dongliang,Wang Zhengdong,Wu Dongdi.Influence of Hydrogen on Nucleation of Cracks in Metal[J].Chinese Journal of Applied Mechanics,1996,13(1):42-47. |
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| Authors: | Xu Ying He Pengfei Liu Dongliang Wang Zhengdong Wu Dongdi |
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| Institution: | Xu Ying;He Pengfei;Liu Dongliang;Wang Zhengdong;Wu Dongdi(Shanghai Jiaotong Univ.)(East China Univ. of Science and Technology) |
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| Abstract: | Theoretical model,appropriate for considering whether or not cavities can be nucleated at discontinuites(e. g., grain-boundary ledges or precipitates), is analysed. The influence of hydrogen on nucleation of cracks were studied through a series of theoretical analysis. It is concluded that the nucleation criterion in this paper is clearer in physics,and hydrogen joins the three stages of nucleation andgrowth of cracks. |
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| Keywords: | cracks nucleation hydrogen |
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