| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Developments in Plate and Line Pipe Steels
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| Presentation Title |
Optimization of Strength and Toughness for Hot-forged Bainitic Medium Carbon Steel using RSM |
| Author(s) |
Iman Salah Eldin El Mahallawi, Tamer A. Mohamed, Abdelwahab A. Hussein, Ahmed Shash, Taha Mattar |
| On-Site Speaker (Planned) |
Iman Salah Eldin El Mahallawi |
| Abstract Scope |
This work presents the experimental results and statistical analysis of the strength and toughness for an isothermally heat-treated medium carbon steel of composition 0.415% C, 1.67% Si, 1.22% Mn, 0.97% Cr, and 0.29% Mo, with varying Al contents in the range (0.00-1.16%) by response surface methodology (RSM). The effect of aluminum content, as well as the isothermal treatment at 300°C for 24-120 hrs in terms of varying the holding time is studied and correlated with the mechanical properties of the steel and state of art findings. Design of experiments and ANOVA were implemented for statistical analysis using Design Expert software. The results show the predicted range of combinations of Al wt.% and holding time that yields the highest values of the responses (Yield strength, ultimate tensile strength, impact energy and hardness). Moreover, the regression equations for each response and the optimum values of the controllable factors to maximizes the responses values are introduced. |