Derivation of the stress-strain equations for metastable materials with martensite transformations under proportional loading
- 157 Downloads
The constitutive equations of plasticity theory for metastable materials with austenite-martensite transformations under proportional loading are proposed. The hardening and residual volume-change functions entering in the equations account for the influence of the stress deviator and the stress state rigidity. The structure of functions is specified with test results for 18–10 austenitic steels in the plane stress state at low temperatures as well as with x-ray data. The relations necessary for calculations are determined from the results of three basic tests. Calculated and experimental data are in good agreement.
KeywordsAustenite Martensite Martensite Transformation Uniaxial Tension Austenitic Steel
Unable to display preview. Download preview PDF.
- 1.B. I. Koval'chuk, A. A. Lebedev, and S. É. Umanskii,Mechanics of Inelastic Deformation of Materials and Structural Elements [in Russian], Naukova Dumka, Kiev (1987).Google Scholar
- 2.V. V. Kosarchuk, L. V. Zaitseva, A. A. Lebedev, and B. I. Koval'chuk, “Influence of stress-state parameters on the kinetics of phase transformations in austenitic steels under plastic deformation,”Probl. Prochn., No. 1, 47–50 (1989).Google Scholar
- 3.S. B. Nizhnik, B. I. Koval'chuk, É. S. Istomina, and E. A. Dmitrieva, “Structural and mechanical properties of austenitic steel at low-temperature deformation under linear and plane stress conditions,”Probl. Prochn., No. 1, 81–86 (1978).Google Scholar
- 4.B. I. Koval'chuk, S. B. Nizhnik, É. S. Istomina, and E. A. Dmitrieva, “Influence of structural factors on stable and metastable austenitic-martensitic steel hardening in the linear and plane stress states,”Probl. Prochn., No. 1, 48–52 (1983).Google Scholar
- 5.L. V. Zaitseva,Plastic Strain and Strength of Metastable Austenitic Steels at Low Temperatures, Synopsis of Thesis, Kiev (1986).Google Scholar
- 6.A. A. Lebedev and B. I. Koval'chuk, “Inelastic deformation models for metastable structural materials (experiment and theory),” in:Simulation in Mechanics (Proc. 9th All-Union School for Continuum Mechanics Models, Novosibirsk, July 1987) [in Russian], Novosibirsk, Vol. 2, No. 19 (1988), pp. 68–82.Google Scholar
- 7.A. A. Lebedev, B. I. Koval'chuk, V. V. Kosarchuk, and L. V. Zaitseva, “Kinetics of martensite transformation in the plastic deformation of austenitic Ni−Cr steels,”Probl. Prochn., No. 9, 3–8 (1985).Google Scholar