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
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
Externí odkaz: