针尖扫描探针显微成像测量压痕接触面积的方法
A method for measuring the contact area in instrumented indentation testing by tip scanning probe microscopy imaging
摘要：
接触面积的确定是通过仪器化压痕测试获得诸如硬度或弹性模量等机械性能的关键步骤。有两类程序专门用于提取该区域：一方面，需要残留印迹成像的死后测量，另一方面，仅依赖于载荷与穿透深度曲线的直接方法。随着原子力显微镜和压痕尖端扫描探针显微镜等内置扫描探针显微镜成像能力的发展，上一代压痕设备使系统的残留压痕成像更快、更可靠。本文介绍了一种新的事后分析方法，并通过覆盖大范围材料的数值和实验基准，与现有的三种经典直接方法进行了进一步比较。结果表明，新方法系统地导致较低的误差水平，无论材料的类型。还讨论了新方法与直接方法的优点和缺点，证明了其在轻松提取机械性能方面的效率，并具有更高的置信度。
英文摘要：
The determination of the contact area is a key step to derive mechanical properties such as hardness or an elastic modulus by instrumented indentation testing. Two families of procedures are dedicated to extracting this area: on the one hand, post mortem measurements that require residual imprint imaging, and on the other hand, direct methods that only rely on the load vs. the penetration depth curve. With the development of built-in scanning probe microscopy imaging capabilities such as atomic force microscopy and indentation tip scanning probe microscopy, last generation indentation devices have made systematic residual imprint imaging much faster and more reliable. In this paper, a new post mortem method is introduced and further compared to three existing classical direct methods by means of a numerical and experimental benchmark covering a large range of materials. It is shown that the new method systematically leads to lower error levels regardless of the type of material. Pros and cons of the new method vs. direct methods are also discussed, demonstrating its efficiency in easily extracting mechanical properties with an enhanced confidence.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
