United Approach to Modelling of the Hot Deformation Behavior, Fracture, and Microstructure Evolution of Austenitic Stainless AISI 316Ti Steel
Autor: | Tatiana A. Churyumova, Alexander Yu. Churyumov, S. V. Medvedeva, Olga I. Mamzurina, Alena A. Kazakova |
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Rok vydání: | 2021 |
Předmět: |
united approach
Materials science JMAK model constitutive model 02 engineering and technology Deformation (meteorology) lcsh:Technology 01 natural sciences hot deformation lcsh:Chemistry Stress (mechanics) 0103 physical sciences microstructure evolution General Materials Science AISI 316Ti stainless steel lcsh:QH301-705.5 Instrumentation Tensile testing 010302 applied physics Fluid Flow and Transfer Processes Austenite lcsh:T Tension (physics) Process Chemistry and Technology Metallurgy General Engineering 021001 nanoscience & nanotechnology Compression (physics) Microstructure Rice and Tracy model lcsh:QC1-999 Computer Science Applications lcsh:Biology (General) lcsh:QD1-999 fracture lcsh:TA1-2040 Fracture (geology) lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:Physics |
Zdroj: | Applied Sciences, Vol 11, Iss 3204, p 3204 (2021) Applied Sciences Volume 11 Issue 7 |
ISSN: | 2076-3417 |
Popis: | Hot deformation is one of the main technological stages of products made from metallic materials. It is strictly required to decrease the costs of developing optimized technologies at this stage without a significant decrease in the products’ quality. The present investigation offers an algorithm to unite three different models to predict the hot deformation behavior, fracture, and microstructure evolution. The hot compression and tension tests of the AISI 316Ti steel were conducted using the thermomechanical simulator Gleeble 3800 for the models’ construction. The strain-compensated constitutive model and the Johnson–Mehl–Avrami–Kolmogorov (JMAK)-type model of the grain structure evolution show a satisfactory accuracy of 4.38% and 6.9%, respectively. The critical values of the modified Rice and Tracy fracture criteria were determined using the experimental values of the relative cross-section reduction and finite element calculation of the stress triaxiality. The developed models were approved for the stainless AISI 316Ti steel by the hot torsion with tension test. |
Databáze: | OpenAIRE |
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