Surface residual stresses have been measured by X-ray diffraction on a newly developed 700 MPa hot rolled microalloyed steel in the as hot rolled and surface peened conditions, in association with the fatigue life. The results suggest that the fatigue life of hot rolled microalloyed steel is enhanced by surface peening, and is related to the induced compressive residual stresses at the surface. The fatigue behaviour of surface peened hot rolled microalloyed steel is comparable with or better than that of an equivalent strength quenched and tempered steel.
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References
1.
MISRAR. D. K., WEATHERLYG. C., HARTMANNJ. E., and BOUCEKA. J.: ISS MWSP Conf. Proc., 2000, 37, 509.
2.
MISRAR. D. K., WEATHERLYG. C., HARTMANNJ. E., and BOUCEKA. J.: Mater. Sci. Technol, 2001, 17, 1119–1129.
3.
MISRAR. D. K. and ANDERSONJ. P.: Mater. Sci. Technol, 2001, 17, 116–118.
4.
MISRAR. D. K., HARTMANNJ. E., and BOUCEKA. J.: Iron Steelmaker Aug. 2000, 63–67.
5.
KENNEDYA. J.: ‘Processes of creep and fatigue in metals’, 287–290; 1962, Edinburgh, Oliver and Boyd.
6.
HUMFREYc. w.in ‘Internal stresses in metals and alloys’, 189–193; 1948, London, The Institute of Metals.
7.
NELSOND. V., RICKLEFSR. E., and EVANSW. P.: in ‘Achievement of high fatigue resistance in metals and alloys’, STP467, 228-253; 1970, Philadelphia, PA, ASTM.
8.
MANSONS. S.: in ‘Metal fatigue damage—mechanism, detection avoidance and repair’, (ed.MansonS. S.), STP495, 316-318; 1971, Philadelphia, PA, ASTM.
9.
KRACHENKOP.Y.: ‘Fatigue resistance’, 66–70; 1964, New York, Macmillan.
