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The instrumented indentation test is widely used for nondestructive evaluation of the mechanical properties of materials. In particular, the uniaxial tensile curve can be estimated through this technique using a spherical indenter with static condition setup. First, to determine the representative stress and strain, the indentation parameters were verified depending on the indentation speed conditions; this was done for the dynamic flow curve estimation using the instrumented indentation test. Multiple load-depth curves were analyzed to determine the maximum load, stiffness, and strain-hardening exponent; the most dominant parameter was verified depending on the indentation speed using the representation model. [ABSTRACT FROM AUTHOR]

The article discusses research on the use of instrumented indentation testing (IIT) in assessing nondestructive mechanical property. The researchers examined the fundamentals of analyzing residual stress and tensile properties from the indentation load-depth curve. They found that the properties of tensile are determined by evaluating the stress state under unloading and loading in the tests.

The article discusses research on the use of instrumented indentation for the analysis of high-temperature mechanical properties. The researchers argued that the evaluation of mechanical properties is essential at high temperatures in order to forecast fracture behavior and deformation. They compared the efficiency of a contact area calibration function with conventional hardness tests.

The article discusses research on the use of instrumented indentation technique (IIT) in assessing residual stress state. The researchers performed indentation tests with Vickers and Knoop indenter perpendicular to the weld line. They examined the difference in the load-depth curve from weld to the parent metal. Results indicate that the nondestructive instrumented indentation testing may be used to measure welds' residual stress.

The article discusses the use of the nondestructive testing method, instrumented indentation technique (IIT) to calculate the mechanical properties of structural components, such as pipelines and vessels. Tensile properties and residual stress are derived from the indentation load-depth curve measured by a spherical indenter through the representative stress-strain approach.