Effects of Aging Treatment and Particle Volume on Hardness of Nickel-Based Superalloys
Author Information
Author(s): Zhang Shunyong, Zhang Bin, Zhao Fengpeng, Li Jicheng, Wei Liming, Huang Xicheng
Primary Institution: Institute of Systems Engineering, China Academy of Engineering Physics
Hypothesis
How do aging treatment and volume fraction of precipitation particles affect the nano-indentation behavior of Ni-based single crystal superalloys?
Conclusion
Increasing the aging time or volume fraction of particles enhances the nano-hardness and creep resistance of Ni-based single crystal superalloys.
Supporting Evidence
- Prolonging aging time or increasing particle volume fraction enhances nano-hardness.
- Nano-hardness and elastic modulus decrease with increasing applied force.
- Indentation size effect is observed in the nano-indentation tests.
- Microstructural evolution significantly influences mechanical properties.
Takeaway
This study shows that making changes to how nickel superalloys are treated can make them harder and better at resisting deformation.
Methodology
Nano-indentation tests and atomic force microscopy (AFM) were used to evaluate the mechanical properties of Ni-based superalloys with different aging times and particle volume fractions.
Digital Object Identifier (DOI)
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