Hardness evaluation from a bilayer coating system of Ni-P deposited on carbon steel plates by multicycle indentation tests
Hardness evaluation from a bilayer coating system of Ni-P deposited on carbon steel plates by multicycle indentation tests
复制标题
DOI：
10.1016/j.surfcoat.2017.11.011
复制
发表时间：
2018-01
影响因子：
5.4
通讯作者：
A. Mejias;D. Chicot;A. Pertuz;A. Iost;A. Montagne;P. Cadenas
中科院分区：
文献类型：
--
作者：
A. Mejias;D. Chicot;A. Pertuz;A. Iost;A. Montagne;P. Cadenas
近年来，用仪器化压痕试验来评估材料的力学性能已得到广泛的应用。这项工作的目的是开发一种方法来分析材料的力学行为从一个连续的multicomponent压痕试验在微尺度的负载，以限制与材料的异质性相关的问题，并增加数据量的厚涂层的研究，只有纳米级的分析不提供在非均匀涂层的情况下。为了验证我们的方法，双层涂层材料（Ni-P）的硬度行为进行了研究。为了证实所提出的方法获得的值，连续刚度测量测试在纳米级也进行了。双层系统被认为是令人满意地承受加载/卸载循环，并提供了一个重要的复合硬度在涂层的表面。
The assessment of mechanical properties of materials by instrumented indentation tests have been widely performed in last years. The objective of this work was to develop a methodology to analyze the mechanical behavior of materials from the data obtained by a continuous multicycle indentation test at the microscale of loads to limit the problems associated with the heterogeneity of the materials and to increase the amount of data for the study of thick coatings that only nanoscale analysis does not provide in the case of heterogeneous coatings. To validate our approach, the hardness behavior of a two-layers coating material (Ni-P) is studied. To corroborate the values obtained by the proposed methodology, continuous stiffness measurement tests at the nanoscale were also performed. The bilayer system was found to bear satisfactorily the loading/unloading cycles and provide an important composite hardness at the surface of the coating.