Creep/fatigue accelerated failure of Ni-based superalloy turbine blade: Microscopic characteristics and void migration mechanism
Source abstract
Abstract
Abstract Creep/fatigue accelerated failures of K403 superalloy turbine blades are inspected, and the damage behaviors are revealed and failure modes are determined in laboratory. It is concluded that: (1) significant discrepancies of fractographies and cross-sectional microstructures are interpreted by qualitative and quantitative investigations; (2) the observed morphologies are mainly attributed to the dendrite separation and γ' phase rafting behaviors, together with the development of ‘void migration mechanism’, i.e., grain interior → grain boundary → sub grain boundary; (3) the failure of turbine blade changes from the mixed to the intergranular mode, which is essentially controlled by the contribution proportion of creep damage and fatigue damage.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Temperature Alloys and Creep · Fatigue and fracture mechanics · Probabilistic and Robust Engineering Design
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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