Abstract
In this research, hot deformation experiments of 316L stainless steel were carried out at a temperature range of 800–1000 °C and strain rate of 2 × 10−3–2 × 10−1. The flow stress behavior of 316L stainless steel was found to be highly dependent on the strain rate and temperature. After the experimental study, the flow stress was modeled using the Arrhenius-type constitutive equation, a neural network approach, and the support vector regression algorithm. The present research mainly focused on a comparative study of three algorithms for modeling the characteristics of hot deformation. The results indicated that the neural network approach and the support vector regression algorithm could be used to model the flow stress better than the approach of the Arrhenius-type equation. The modeling efficiency of the support vector regression algorithm was also found to be more efficient than the algorithm for neural networks.
Highlights
Stainless steel is an iron-based alloy that is widely used because it has greater wear and corrosion resistance than other alloys such as mild steels and low alloy steels [1]
Gupta et al [12], the neural network model was used to model hot deformation, and the results indicated that the neural network model had better performance than any of the other traditional constitutive models examined
The stresses predicted by the Arrhenius equation were close to the Figure 8a–c shows the calculated truesquare stress error) by the equation indicated on the experimental values
Summary
Stainless steel is an iron-based alloy that is widely used because it has greater wear and corrosion resistance than other alloys such as mild steels and low alloy steels [1]. Depending on the alloying contents used, stainless steel can have good strength and oxidation resistance in high temperature environments, as well as the desired properties for cryogenic environments and marine applications [1,2,3]. Cr (12–25 wt.%), Ni (8–25 wt.%), and Mo (0–6 wt.%) and has good high temperature properties. Austenitic stainless steel has several different types and characteristics. Stainless steel type 316 is a molybdenum-added alloy which has good resistance to pitting, high temperature creep, and high temperature oxidation [3]. This alloy is often applied in defence and nuclear applications [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
