Fatigue: Environment and Temperature EffectsJohn J. Burke, Volker Weiss The Army Materials and Mechanics Research Center in coop eration with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University has been conducting the Annual Sagamore Army Materials Research Conference since 1954. The specific purpose of these conferences has been to bring together scientists and engineers from academic institutions, industry and government who are uniquely qualified to explore in depth a subject of importance to the Department of Defense, the Army and the scientific community. These proceedings entitled, FATIGUE - ENVIRONMENT AND TEMPER ATURE EFFECT, address the overview of temperature and environmental effects of fatigue, room temperature environmental effects, high temperature and environmental effect - mechanisms, high tempera ture and environmental effect - mechanisms, materials and design-engineering applications. We wish to acknowledge the assistance of Messrs. Joseph Bernier and Dan McNaught of the Army Materials and Mechanics Research Center and Helen Brown DeMascio of Syracuse University throughout the stages of the conference planning and finally the publication of the book. The continued active interest and support of these conferences by Dr. E. Wright, Director of the Army Materials and Mechanics Research Center, is appreciated. |
Contents
Overview of Temperature and Environmental Effects | 1 |
SESSION II | 41 |
SESSION III | 71 |
Copyright | |
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304 stainless steel analysis APPLIED CYCLIC STRESS ASTM cavity components continuous cycling controlled Cotac crack growth behavior crack growth rate crack initiation crack length crack propagation crack propagation rate crack tip creep crack growth CYCLES TO FAILURE CYCLIC STRESS CYCLIC STRESS INTENSITY da/dN damage decrease deformation dependent disk ductility elevated temperature engine environment environmental effects fatigue behavior fatigue crack growth Fatigue Crack Propagation fatigue cycles ferrite Figure fracture mechanics fracture surface grain boundary high temperature hold periods hold-time increase intensity factor intergranular Kmax L. F. Coffin low cycle fatigue material maximum metal microstructure mm/cycle Nitac notch observed oxidation plane strain plastic strain range prediction reactor resistance shown in Fig slow-fast specimens stainless steel stress levels structure superalloys surface layer tensile hold tensile stress test frequency thermal tion titanium alloys Trans transgranular twin bands Unirradiated vacuum values waveform weld yield strength