| 表层纳米化材料微压痕试验与数值模拟 |
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| 引用本文： | 吴波,谭建松,王建平,庞铭,胡定云.表层纳米化材料微压痕试验与数值模拟[J].兵器材料科学与工程,2010,33(1):49-53. |
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| 作者姓名： | 吴波 谭建松 王建平 庞铭 胡定云 |
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| 作者单位： | 中国北方发动机研究所廊坊分所,河北,廊坊,065000;中国北方发动机研究所廊坊分所,河北,廊坊,065000;中国北方发动机研究所廊坊分所,河北,廊坊,065000;中国北方发动机研究所廊坊分所,河北,廊坊,065000;中国北方发动机研究所廊坊分所,河北,廊坊,065000 |
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| 摘 要： | 通过对表层纳米化铝材料的显微观察、压痕试验测量和有限元分析,从试验和理论分析两方面研究由高速喷丸法制备的表层纳米晶铝的力学行为。结合表层纳米晶铝的微结构特征,建立相应的微结构构元模型,采用基于机制的应变梯度理论对微压痕实验进行模拟,获得表层纳米化材料晶粒尺度效应和几何效应对材料微压痕硬度的影响。
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| 关 键 词： | 表层纳米化 压痕试验 尺度效应 几何效应 |
Numerical simulations and micro-indentation test of surface-nanocrystallization materials |
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| WU Bo,TAN Jiansong,WANG Jianping,PANG Ming,HU Dingyun.Numerical simulations and micro-indentation test of surface-nanocrystallization materials[J].Ordnance Material Science and Engineering,2010,33(1):49-53. |
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| Authors: | WU Bo TAN Jiansong WANG Jianping PANG Ming HU Dingyun |
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| Affiliation: | Langfang Branch of China North Engine Research Institute;Langfang 065000;China |
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| Abstract: | Based on the microscale observation,measurement of indentation test and finite element analysis on surfacenanocrystallization of Al material,the mechanical behaviors of the surface-nanocrystalline Al manufactured by using the ultrasonic shot peening method are investigated experimentally and theoretically.By examining the microstructure characteristics of surface-nanocrystalline Al,the microstructure cell model is developed and the indentation tests are simulated by using the strain gradient plasticity theo... |
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| Keywords: | surface-nanocrystallization indentation test size effect geometry effect |
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