首页|Influence of carbides and pores on the localized deformation of nickel-based single-crystal superalloys
Influence of carbides and pores on the localized deformation of nickel-based single-crystal superalloys
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The carbides and pores play a critical role in the cracking tendencies of nickel-based single-crystal superalloys during deformation.In the present study,the deformation mechanism and local strain evolution behavior around carbides and pores were studied through in-situ tensile deformation experiments.The findings indicate that multiple slip systems are easily activated during tensile deformation in single-crystal alloys.Furthermore,the strain localization in carbides is influenced by their morphology,with rod-like and flake-like carbides demon-strating an increased likelihood of cracking during deformation.The strain localization adjacent to pores is markedly more intense,rendering these areas particularly susceptible to cracking.Our work therefore offers a theoretical foundation for enhancing the mechanical properties of nickel-based single-crystal superalloys by controlling carbide morphology and pore formation.
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