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Title:Elevated temperature tensile and fatigue behavior of unalloyed arc cast molybdenum
Author(s):Brock, G.W.; Sinclair, G.M.
Tensile Behavior
Fatigue Behavior
Abstract:Tension and fatigue tests were carried out over a range of temperatures to explore the possible effects of interaction between interstitial atoms and dislocations on fatigue behavior of recrystallized molybdenum containing small amounts of interstitial elements. No increase in tensile strength corresponding to that found in the “blue brittle” range in steel was observed as the test temperatures were raised over the range -300 to 1800°F. However, values of the upper and lower yield point remain essentially unchanged over the temperature range 200° to 400°F. The presence of a “knee” in the fatigue S-log N diagram over the temperature range, 75° to 875°F, suggests that strain aging may be influencing the fatigue behavior in this temperature range and may also be responsible for the high values of fatigue ratio (0.65-0.72) observed at these temperatures. The appearance of a sharp “knee” in the S-N diagram is particularly pronounced at 675°F.
Issue Date:1959-02
Publisher:Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report:TAM R 147
Genre:Technical Report
Sponsor:Wright Air Development Center, Air Research and Development Command, United States Air Force, Wright-Patterson Air Force Base, Ohio, Materials Laboratory, Contract No. AF 33(616)-5153, Project No. 7024
Rights Information:Copyright 1959 Board of Trustees of the University of Illinois
Date Available in IDEALS:2021-11-04

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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