Influence of tip bluntness on the size-dependent nanoindentation hardness
Influence of tip bluntness on the size-dependent nanoindentation hardness
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DOI：
10.1016/j.scriptamat.2004.10.036
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发表时间：
2005-03
影响因子：
6
通讯作者：
Juyoung Kim;B. Lee;D. Read;D. Kwon
中科院分区：
文献类型：
--
作者：
Juyoung Kim;B. Lee;D. Read;D. Kwon
纳米压头尖端钝度改变了 Nix-Gao 模型给出的尺寸依赖性硬度关系。在浅深度，需要较少的几何必要位错来容纳钝尖端。相对于理想化的 Nix-Gao 模型，实验测量的塑料与总接触深度的比率下降，硬度也下降。
Nanoindenter tip bluntness modifies the size-dependent hardness relationship given by the Nix–Gao model. At shallow depths, fewer geometrically necessary dislocations are needed to accommodate the blunted tip. The experimentally measured ratio of plastic to total contact depth decreases and the hardness decreases relative to the idealized Nix–Gao model.