Abstract
AbstractThis study focuses on the strain hardening and adiabatic heating of two stainless steels after a sudden increase of strain rate. Tensile tests were performed where the strain rate was rapidly increased from ~ 10–4 s−1 to 1.3 × 103 s−1. Synchronized full field strain and temperature measurements were carried out with Digital Image Correlation and Infrared Thermography to analyze the materials behavior immediately after the strain rate jump. The results show that the temperature increases gradually while the strain hardening rate drops immediately after the strain rate jump. The temperature increase due to adiabatic heating does not seem to explain the drop in the strain hardening rate, thus the strain rate seems to have a direct effect on the strain hardening rate of the studied steels.
Funder
Tampereen Teknillinen Yliopisto
Luonnontieteiden ja Tekniikan Tutkimuksen Toimikunta
Publisher
Springer Science and Business Media LLC
Subject
Mechanics of Materials,Materials Science (miscellaneous)
Reference20 articles.
1. Olson GB, Cohen M (1972) A mechanism for the strain-induced nucleation of martensitic transformations. J Less-Common Metals 28:107–118. https://doi.org/10.1016/0022-5088(72)90173-7
2. Olson GB, Cohen M (1975) Kinetics of strain-induced martensitic nucleation. Metall Trans A 6:791–795. https://doi.org/10.1007/BF02672301
3. J. Talonen, Effect of strain-induced α’-martensite transformation on mechanical properties of metastable austenitic stainless steels, Helsinki University of Technology, 2007. http://urn.fi/urn:nbn:fi:tkk-009284.
4. Martin S, Wolf S, Martin U, Krüger L, Rafaja D (2016) Deformation mechanisms in austenitic TRIP/TWIP steel as a function of temperature, metallurgical and materials transactions a: physical metallurgy and materials. Science 47:49–58. https://doi.org/10.1007/s11661-014-2684-4
5. Hecker SS, Stout MG, Staudhammer KP, Smith JL (1982) Effects of strain state and strain rate on deformation-induced transformation in 304 stainless steel: Part I Magnetic measurements and mechanical behavior. Metall Transac A 13:619–626. https://doi.org/10.1007/BF02644427
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献