Effects of inclusion size and stress ratio on the very-high-cycle fatigue behavior of pearlitic steel
Source abstract
Abstract
Abstract The effects of inclusion size and stress ratio (R) on the very-high-cycle fatigue (VHCF) behavior of pearlitic steel were experimentally assessed. The S–N curve under rotating bending loading exhibited a horizontal asymptote shape and a clear fatigue limit. In contrast, the S–N curve under ultrasonic axial loading exhibited a continuously descending shape, and the fatigue limit disappeared at a fatigue life of 107 cycles. The fine granular area (FGA) within nanograins formed in the crack initiation region only for the samples subjected to VHCF at R = −1. All instances of interior crack initiation were caused by the MnS inclusions.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Microstructure and Mechanical Properties of Steels · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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