MSE 2024
Lecture
26.09.2024
Investigating the Interplay of Chemistry, Processing, and Microstructure for High-Performance Spheroidized Steels Under Complex Loading Conditions
FQ

Faisal Qayyum

Technische Universität Bergakademie Freiberg

Qayyum, F. (Speaker)¹; Xu, C.²; Guk, S.¹; Guski, V.²; Prahl, U.¹; Schmauder, S.²
¹TU Bergakademie Freiberg; ²Universität Stuttgart
Vorschau
21 Min. Untertitel (CC)

This research explores the influence of alloying elements and processing parameters on spheroidization kinetics in steel alloys. Using Fe-1C as a reference, we investigate Fe-1C-1.4Cr and Fe-1C-1.4Mo alloys to understand the roles of chromium and molybdenum. Optimal holding temperatures and times are examined to achieve the desired spheroidized morphology while conserving energy and time. We link these conditions to mechanical behavior, providing guidance for resource-efficient processing.

Quantitative analysis is central to our study, enabling the measurement of spheroidization degree and characterization of microstructural parameters, including cementite globule properties. Our findings have practical implications for engineers and researchers, aiding in informed decisions about alloying elements, spheroidization time, and temperature to attain target microstructures and mechanical properties while minimizing resource usage.

Challenges include achieving a consistent pearlitic morphology before spheroidization and the requirement for high magnification to measure fine spheroidized cementite particles. We address this by characterizing at least three images per sample to ensure statistical robustness. This research offers a comprehensive analysis of alloying elements, processing parameters, microstructural features, and mechanical properties in spheroidized steels. The outcomes promote resource-efficient materials production and sustainability in materials engineering and manufacturing.

Abstract

Abstract

Erwerben Sie einen Zugang, um dieses Dokument anzusehen.

© 2026