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首页> 外文会议>Symposium on Structure and Mechanical Properties of Nanophase Materials- Theory and Computer Simulation vs. Experiment Nov 28-30, 2000, Boston, Massachusetts, U.S.A. >The Effect of Deposition Parameters on Tensile Properties of Pulse-Plated Nanocrystalline Nickel
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The Effect of Deposition Parameters on Tensile Properties of Pulse-Plated Nanocrystalline Nickel

机译：沉积参数对脉冲镀纳米晶镍拉伸性能的影响

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摘要

The microstructure and tensile properties were investigated for pulse-plated nanocrystalline nickel electrodeposits prepared from an additive-free sulfamate-based solution. Square-wave cathodic current densities were varied from 25 to 75 mA/cm~2. The samples deposited at 25 mA/cm~2 showed the smallest grain size (d ～ 12 nm), and the grain size was found to increase with increasing current densities. The grain size of the electrodeposits ranged from approximately 27 to 12 nm. Tensile results indicated that the yield strength of the specimens increased with decreasing grain size. Scanning electron microscopy revealed that all electrodeposits fractured through a ductile mechanism.
机译：研究了由无添加剂氨基磺酸盐基溶液制备的脉冲镀纳米晶体镍电沉积的微观结构和拉伸性能。方波阴极电流密度在25到75 mA / cm〜2之间变化。以25 mA / cm〜2沉积的样品显示出最小的晶粒尺寸（d〜12 nm），并且发现晶粒尺寸随着电流密度的增加而增加。电沉积的晶粒尺寸在约27至12 nm的范围内。拉伸结果表明，试样的屈服强度随着晶粒尺寸的减小而增加。扫描电子显微镜显示，所有电沉积物均通过韧性机制断裂。

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