Influence of low indentation load on Young's modulus and hardness of 4mol% Y2O3–ZrO2 by nanoindentation

Effect of Indentation Size and Strain Rate on Nanomechanical Behavior of Ti-6Al-4VAlloy

“…The main reason for its extensive use can be attributed to the speed with which the experiments can be conducted, nondestructiveness, the simplicity of testing under special conditions and offering the possibility of greatly reducing the scale of the tests. The advantages of instrumented indentation tests compared to traditional experiments are obvious: firstly, the amount of data generated through instrumented indentation is much more than that of classical experiments and secondly these tests can be performed relatively easily at different loading rates, indentation depths and imposed rates of deformation during indentation [14]. Ti-6Al-4V is one of the most important and widely used Ti alloys in the aerospace industry especially for aero engine components, which are vulnerable to foreign object damage and solid particle erosion.…”

Thermal barrier coating systems — analysis of nanoindentation curves

“…Decrease of E and H with increasing L max was reported in [9] for YSZ ceramics with 4 mol% Y 2 O 3 , sintered at 1500°C for 2 h. This phenomenon is generally known as the indentation size effect (ISE). Gong et al [7] studied the possible effects of residual contact stresses on the nanoindentation of YSZ sintered ceramics with 3 mol% Y 2 O 3 .…”

“…E and H of YSZ single crystals with 10 mol% Y 2 O 3 , measured by nanoindentation, have been reported in [4,5]. Several groups have reported nanoindentation data for sintered YSZ ceramics [6][7][8][9][10]. Guicciardi et al [8] performed a detailed study on sintered YSZ ceramics with 3 mol% Y 2 O 3 , almost zero porosity (P) and different average grain sizes between 200 and 700 nm.…”

“…Effects of heat treatment on the mechanical properties of TBC systems have been also reported [9,[27][28][29][30][31][32]. Thompson et al [29] studied a TBC system consisting of APS YSZ TC (8 wt.% Y 2 O 3 ), vacuum plasma sprayed CoNiCrAlY BC and Nimonic 80A substrate.…”

Vickers microhardness of oxidized and nonoxidized porous silicon

“…Figure 6 shows the load / indentation depth (P/h) versus indentation depth (h) curves. The relation between P/h and h should be linear if the material is homogeneous with a constant slop [17,18]. However, this linear relation will change if the material under indentation changes.…”