About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
8th World Congress on Integrated Computational Materials Engineering (ICME 2025)
|
Presentation Title |
Hydro Quebec Efforts Toward ICME: Characterizing the Microscale Tensile Behavior of Hydraulic Turbine Steels With Micro-Tensile and Nano-Indentation Tests |
Author(s) |
Daniel Paquet, Pierre-Antony Deschênes, Laurent Tôn-Thât, Robert Wheeler, Betty Huang, Nabil Bassim |
On-Site Speaker (Planned) |
Daniel Paquet |
Abstract Scope |
Two different techniques are used to extract microscale elastoplastic properties of steels used for the fabrication and repair of hydraulic turbines. Martensitic stainless steels and carbon steels, composed of ferrite and pearlite, with significantly different macroscopic tensile behaviors, are characterized by micro-tensile and nano-indentation experiments. Those two intrinsically different techniques are complementary to each other. Micro-tensile tests are easier to analyze but more complex to perform. They require an expertise in FIB machining and an access to sophisticated in situ instruments. This experimental technique is well suited for constitutive relation calibration as it allows a better control over the applied strain field, which is homogeneous and uniaxial when neglecting microstructural effects. Inversely, nano-indentation tests are easier to execute but more complex to analyze because the introduced state of strain is inhomogeneous and triaxial. Nano-indentation is suitable for applications such as Microstructure Informatics for which high throughput experiments are desired. |
Proceedings Inclusion? |
Undecided |