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首页> 外文期刊>Physics of the solid state >The effect of small-amplitude load oscillations on the nanocontact characteristics of materials in nanoindentation
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The effect of small-amplitude load oscillations on the nanocontact characteristics of materials in nanoindentation

机译：小幅度载荷振荡对纳米内膜材料纳米接触特性的影响

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A continuous stiffness measurement method allowing one to obtain physical-mechamical characteristics of materials in the process of indentation during gradually increasing loading has been scrutinized. The limits of applicability of this approach depend on the testing conditions at which the additional smallamplitude oscillations exert no influence on the mechanics, kinetics, and plastic strain of material being in contact with the indenter. As is shown by taking as examples specimens with amorphous structure, and fcc and bcc lattices, various techniques for determining the nanocontact characteristics of materials are different by their sensitivity to small-amplitude load oscillations. The oscillation amplitudes and the indentation depth ranges where one can neglect the oscillation effects have been evaluated. The impacts of the oscillations on the behavior of the contact (local) characteristics of the studied materials in supercritical modes have been established.
机译：已经仔细仔细仔细仔细仔细地仔细仔细仔细仔细地仔细仔细仔细地仔细仔细地审查了逐渐增加负载逐渐增加载荷过程中材料的物理 - 机械特性。 这种方法的适用性依赖于额外的小型振动振荡对机械，动力学和塑料应变与压紧接触的力学，动力学和塑性应变产生影响的测试条件。 如通过用非晶结构的示例标本和FCC和BCC格子的示例所示，用于确定材料的纳米接触特性的各种技术通过它们对小幅度负载振荡的敏感性而不同。 振荡幅度和缩进深度范围可以忽视振荡效应。 建立了振动对超临界模式中研究材料的接触（局部）特性的行为的影响。

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