A critical assessment of fatigue behaviour of ferrous alloys by empirical correlation of multifactor S-N curves
1 P.h.D research scholar, Mechanical Engineering Department, Dr.B.R. R Ambedkar National Institute of Technology, Jalandhar, Punjab, India.
2 P.G Research scholar, Jammu University, Jammu and Kashmir (UT), India.
Research Article
World Journal of Advanced Research and Reviews, 2022, 16(02), 722-730
Article DOI: 10.30574/wjarr.2022.16.2.1226
Publication history:
Received on 05 October 2022; revised on 15 November 2022; accepted on 17 November 2022
Abstract:
Corrosion and Temperature have a significant deteriorative effect on fatigue life of mechanical structures. The reliability of the fatigue damage assessment techniques depends on the quality of the S-N curve which is derived as a result of corrosion degradation and elevated temperature. In this research paper steel specimens of 9.48 mm diameter were tested under rotating bending conditions at a frequency of 6000 cpm.The influencing factors are stress concentration (K = 2.45) (common for both the cases) corrosion (1 percent NaCl solution as corrodent) and elevated temperature (150 °C). The S-N curve so obtained were compared with experimental fatigue test results. Their correlation showed good agreement between the experimental results and the adopted approaches for fatigue life assessment.
Keywords:
Fatigue; Corrosion; Stress concentration; Temperature; S-N curve; Correlation
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