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September 10, 2025Scientific ReportsOpen Access

Ratcheting fatigue behaviour of advanced structural materials at their service temperatures

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Authors

PMPrerna MishraSavitribai Phule Pune UniversityVGVivek GuptaUniversity of Engineering & ManagementPMPrateek D. MalweGovernment Medical College

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Overview

Experimental testing reveals how ratcheting fatigue behavior affects structural materials, suggesting significant implications for engineering applications.

Key Points

  • Ratcheting fatigue behavior leads to progressive buildup of plastic strain, ultimately causing material failure.
  • Experimental results indicate that fatigue life for 9 C-1Mo steel and IN-617 superalloy decreases with increased tensile mean stress.
  • At higher service temperatures, the fatigue life of these structural materials is improved due to dynamic-strain aging.
  • Understanding these factors is crucial for the design and life prediction of components in demanding industries.

Cite This Study

Mishra et al. (2025) studied this question.

synapsesocial.com/papers/68c1a77a54b1d3bfb60e0a5chttps://doi.org/10.1038/s41598-025-09147-z
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