Stress Relaxation in Tensile Deformation of 304 Stainless Steel
Source abstract
Abstract
Improved ductility by stress relaxation has been reported in different kinds of steels. The influence of stress relaxation and its parameters on the ductility of 304 stainless steel has not been established so far. Stress relaxation behavior during tensile tests at different strain rates is studied in 304 stainless steel. It is observed that stress relaxation can obviously increase the elongation of 304 stainless steel in all cases. The elongation improvement of interrupted tension reaches to 14.9% compared with monotonic tension at 0.05 s−1. Contradicting with the published results, stress drop during stress relaxation increases with strain at all strain rates. It is related with dislocation motion velocity variation and martensitic transformation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Metallurgy and Material Forming · Fatigue and fracture mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
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1. J.C.M. Li and C.C. Chau, Internal Stresses in Plasticity, Microplasticity and Ductile Fracture, Mater. Sci. Eng. A, 2006, 421, p 103–10810.1016/j.msea.2005.10.008 ↗
2. O. Couteau, T. Kruml, and J.-L. Martin, About the Activation Volume for Cross-Slip in Cu at High Stresses, Acta Mater., 2011, 59, p 4207–421510.1016/j.actamat.2011.03.045 ↗
3. E.W. Hart, Constitutive Relations for the Nonelastic Deformation of Metals, J. Eng. Mater. Technol., 1976, 98, p 93–202
4. E. Krempl, Relaxation Behavior and Modeling, Int. J. Plast., 2001, 17, p 1419–143610.1016/S0749-6419(00)00092-9 ↗
5. K. Hariharan, O. Majidi, C. Kim, M.G. Lee, and F. Barlat, Stress Relaxation and its Effect on Tensile Deformation of Steels, Mater. Des., 2013, 52, p 284–28810.1016/j.matdes.2013.05.088 ↗
6. K. Hariharan, O. Majidi, C. Kim, M.G. Lee, and F. Barlat, Stress Relaxation for Formability Improvement, Key Eng. Mater., 2013, 554-557, p 145–15010.4028/www.scientific.net/KEM.554-557.145 ↗
7. H. Yamashita, H. Ueno, H. Nakai, and T. Higaki, Technology to Enhance Deep-Drawability by Strain Dispersion Using Stress Relaxation Phenomenon. SAE Technical Paper, 2015. DOI: 10.4271/2015-01-053110.4271/2015-01-0531 ↗
8. X.F. Li, J. Chen, L.Y. Ye, W. Ding, and P.C. Song, Influence of Strain Rate on Tensile Characteristics of SUS304 Metastable Austenitic Stainless Steel, Acta Metall. Sin. (Engl. Lett.), 2013, 26, p 657–66210.1007/s40195-013-0206-9 ↗
9. H. Yamada and C.-Y. Li, Stress Relaxation and Mechanical Equation of State in Austenitic Stainless Steels, Metall. Trans., 1973, 4, p 2133–213610.1007/BF02643278 ↗
10. D.W. Henderson, R.C. Kuo, and C.-Y. Li, Load-Relaxation Testing at Elevated Strain Rates, J. Mater. Sci., 1985, 20, p 1257–126510.1007/BF01026321 ↗
11. F. Povolo and R.J. Tinivella, Stress Relaxation in Bending of Type AISI, 304 and A-286 Steels at 773K, J. Mater. Sci., 1984, 19, p 1851–186210.1007/BF00550255 ↗
12. F. Povolo and R.J. Tinivella, Stress Relaxation in Bending of Type AISI, 304 Stainless Steel at 773 and 823K, J. Mater. Sci., 1992, 27, p 1505–151310.1007/BF00542911 ↗
13. H. Yamada and C.-Y. Li, Stress Relaxation and Mechanical Equation of State in b.c.c. Metals in Monotonic Loading, Acta Metall., 1974, 22, p 249–25310.1016/0001-6160(74)90015-7 ↗
14. G.L. Wire, F.V. Ellis, and C.-Y. Li, Work Hardening and Mechanical Equation of State in Some Metals in Monotonic Loading, Acta Metall., 1976, 24, p 677–68510.1016/0001-6160(76)90088-2 ↗
15. K. Kaneko and T. Oyamada, Viscoplastic Constitutive Model with Effect of Aging, Int. J. Plast., 2000, 16, p 337–35710.1016/S0749-6419(99)00057-1 ↗