This paper is a phenomenological study representing the influence of the hardening type on the instrumented indentation F-h curve. Spherical instrumented indentation and inverse analysis techniques (IAT) are used and two metallic materials (DP600 and AA2017) are investigated. Pure isotropic (Voce) and combined (Chaboche 1986) hardening laws are adopted for describing the plastic behavior of the studied materials. The influence of the hardening type on the indentation loading curve is studied first. Kinematic hardening results in softening the indentation loading curve. This is due to some regions in the indented zone that undergo different loading paths during loading. Hardening types (kinematic & isotropic) should be considered to accurately characterize the mechanical behaviour of different metallic materials using indentation curves. The influence of the hardening type on the indentation unloading-reloading curve (hysteresis loop) is then studied. Kinematic hardening has an important influence on the hysteresis loop. This influence has been investigated closely and a methodology is proposed for estimating the contribution of each hardening type in the overall hardening behavior. This methodology is based on geometrical parameters directly influenced by the hardening type and presents great potential if considered in future works aiming to identify parameters of relatively complex hardening laws using the instrumented indentation technique (IIT).

本文是一种现象学研究，代表了硬化类型对仪器压痕Fh曲线的影响。使用球形仪器压痕和反分析技术（IAT），并研究了两种金属材料（DP600和AA2017）。采用纯各向同性（Voce）和组合（Chaboche 1986）硬化定律来描述研究材料的塑性行为。首先研究了硬化方式对压痕载荷曲线的影响。运动硬化导致压痕加载曲线变软。这是由于凹入区域中的某些区域在加载过程中经历了不同的加载路径。应考虑使用硬化类型（运动学和各向同性的）来使用压痕曲线准确地表征不同金属材料的机械性能。然后研究了硬化方式对压痕卸载-再加载曲线（磁滞回线）的影响。运动硬化对磁滞回线有重要影响。已经对这种影响进行了深入研究，并提出了一种方法来估计每种硬化类型在整体硬化行为中的作用。这种方法基于直接受硬化类型影响的几何参数，如果在以后的工作中考虑使用仪器压痕技术（IIT）来识别相对复杂的硬化规律的参数，则具有很大的潜力。已经对这种影响进行了深入研究，并提出了一种方法来估计每种硬化类型在整体硬化行为中的作用。该方法基于直接受硬化类型影响的几何参数，如果在未来的工作中考虑使用仪器压痕技术（IIT）来识别相对复杂的硬化规律的参数，则具有很大的潜力。已经对这种影响进行了深入研究，并提出了一种方法来估计每种硬化类型在整体硬化行为中的作用。该方法基于直接受硬化类型影响的几何参数，如果在未来的工作中考虑使用仪器压痕技术（IIT）来识别相对复杂的硬化规律的参数，则具有很大的潜力。