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    STP728

    Fatigue Properties of Commercially Pure Titanium

    Published: 01 January 1981


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    Abstract

    Room-temperature fatigue characteristics of ASTM Grade 2 titanium were investigated to provide information important to its design and life prediction capabilities. Load-controlled tension-tension fatigue tests were conducted on mill product strip materials under various loading conditions. Results indicated that the material had a significant fatigue life at stress levels above the corresponding yield strength and that neither prestraining nor the method of load application used showed a clear influence on fatigue performance. These characteristics may have useful implications in the design of industrial equipment. The influence of various surface-defect conditions on the fatigue properties is investigated and reported, and a comparison is made between the resultant runout stresses and common allowable design stresses.

    Keywords:

    fatigue, prestraining, commercially pure titanium, surface defects, industrial applications


    Author Information:

    Wardlaw, TL
    Senior research engineer and supervisor of Metallurgical Research, TIMET, Henderson Technical Laboratories, Henderson, Nev.

    Hall, JA
    Senior research engineer and supervisor of Metallurgical Research, TIMET, Henderson Technical Laboratories, Henderson, Nev.


    Committee/Subcommittee: B10.01

    DOI: 10.1520/STP28057S