Hot workability behaviour of two P92 creep resistant steels: Constitutive analysis

J Obiko, D Whitefield, M Bodunrin - The International Journal of Advanced …, 2023 - Springer
This article reports the flow stress behaviour of two P92 steels at a temperature range of 850–
1000° C and a strain rate of 0.1–10 s− 1 using the Gleeble® 3500 thermomechanical …

Constitutive analysis of hot metal flow behavior of virgin and rejuvenated heat treatment creep exhausted power plant X20 steel

S Maube, J Obiko, J Van der Merwe, F Mwema… - … International Journal of …, 2024 - Springer
This paper presents constitutive equations that describe the hot flow behaviour of Virgin
(VG) X20 and rejuvenated heat-treated creep exhaust (CE) X20 steels. The study provides a …

Constitutive analysis of hot forming process of P91 steel: finite element method approach

FM Mwema, JO Obiko, RM Mahamood… - Advances in Materials …, 2022 - Taylor & Francis
This study reports on the forging simulation of P91 steel at a temperature range of 900–
1200° C and a strain rate range of 1–15 s− 1 using Deform 3D finite element software. The …

Comparative Study on Hot Metal Flow Behaviour of Virgin and Rejuvenated Heat Treatment Creep Exhausted P91 Steel

S Maube, J Obiko, J Van der Merwe, F Mwema… - Applied Sciences, 2023 - mdpi.com
This article reports on the comparative study of the hot deformation behaviour of virgin (steel
A) and rejuvenated heat treatment creep-exhausted (steel B) P91 steels. Hot uniaxial …

Hot workability characteristics of two A335 P92 steels for power plant application: A comparative study

J Obiko, L Chown, D Whitefield… - Engineering Solid …, 2023 - growingscience.com
The article reports on the workability of two P92 steels having a chromium content of 8.29
and 9.48 wt%. Constitutive equations were used to calculate material parameters describing …