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Proceedings 2018, 2(8), 507; https://doi.org/10.3390/ICEM18-05415

In-Situ SEM Deformation Testing of Ni-Based Superalloy Heated by the Joule Heat

Department of Engineering Mechanics, AML, Tsinghua University, Beijing 100084, China
Presented at the 18th International Conference on Experimental Mechanics (ICEM18), Brussels, Belgium, 1–5 July 2018.
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Published: 29 June 2018
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Abstract

Studying the deformation and microstructure evolution for Ni-based single crystal alloys at high temperature has important effects on the design of turbine blades and disks. However, in-situ high temperature tests under scanning environment pose an important challenge for the current experimental conditions. In this paper, the resistance heating system was introduced into the high temperature fatigue experimental apparatus. The in-situ tensile test of 900 °C was successfully carried out. The experimental results showed that the crack initiation was mainly caused by inclusion debonding. The fracture mode was mainly characterized by the connection of micro holes.
Keywords: in-situ SEM; nickel-based superalloy; joule heating in-situ SEM; nickel-based superalloy; joule heating
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Wang, Z.; Liang, J.; Li, X. In-Situ SEM Deformation Testing of Ni-Based Superalloy Heated by the Joule Heat. Proceedings 2018, 2, 507.

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