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Microstructure and hardness dependence of the pressure of nano-crystalline aluminum

机译:纳米晶铝压力的组织和硬度依赖性

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摘要

Nano-crystalline aluminum was synthesized by a new method of ball-milling technique from ingots of 99.8 wt. percent Al. The effect of pressure on the microstructure and mechanical properties of compacted ball-milled aluminum was investigated in a pressure range up to 300 Pa. The dislocation density and micro-hardness of our specimens increase by increasing the pressure. The best fit line describes the H-P relationship dependence of micro-hardness (H_v0.010) on the grain size for compacted aluminum obeys the following formula: H_v0.010 = 35.42~(-1/2)+245.02(kg mm~(-2)).
机译:通过球磨技术的新方法,从99.8 wt。%的铸锭合成了纳米晶铝。铝百分比在最高300 Pa的压力范围内,研究了压力对压实球磨铝的微观结构和力学性能的影响。压力的增加会增加样品的位错密度和显微硬度。最佳拟合线描述压实铝的HP微观硬度(H_v0.010)与晶粒尺寸的关系,其服从以下公式:H_v0.010 = 35.42D〜(-1/2)+245.02(kg mm 〜(-2))。

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