steelHub - Introduction

Catalogue | Course | Module

Module of

Dislocation Strengthening

Master strain ageing and dislocation-strengthening principles in steel through advanced simulations, theory, and mechanical property analysis.

Ferrous Metallurgy

Introduction

Full Code

MET0203205

Module Type

E-learning

Description

Short description:
Strain Ageing & Dislocations: Explore how solute diffusion and dislocation interactions influence steel strength in this self-paced metallurgy module.

Long description:
This module offers a detailed exploration of dislocation-based strengthening in steels, emphasizing the mechanisms and impact of strain ageing. Learners will analyze the influence of interstitial solutes like carbon and nitrogen on dislocation behavior and strength enhancement. Through simulation-based diagrams, kinetic studies, and analytical discussions, participants will examine Cottrell's theory, dynamic and substitutional strain ageing, and Lüders bands. The module integrates practical interpretations of the Holloman equation, dislocation interactions, and strengthening mechanisms across multiple slip planes. Ideal for learners in mechanical metallurgy, this module supports understanding of microstructural deformation behaviors in steel under various conditions.

What you will learn

- Explain how interstitial solutes form atmospheres around dislocations, affecting steel strength.
- Analyze strain ageing kinetics using Cottrell’s theory and dynamic strain-ageing principles.
- Evaluate the mechanical property shifts caused by strain and ageing using data interpretation.
- Apply the Holloman equation and Taylor relationships to predict dislocation behavior under stress.
- Describe the formation and implications of Lüders bands during cold working of steel.

Module content

EN ES RU CN

Learning Outcomes

Applied Metallurgy
4

Understands the basics of metallurgy, including the structure and properties of metals.

1
Understands the principles of alloying to create steel with desired properties.

2
Able to analyse steel microstructures to assess material properties.

2
Able to select and design steel alloys for specific applications, considering factors like strength, corrosion resistance, and heat resistance.

3

Related Occupations

Engineer - Operation

Monitors process parameters and suggests corrective measures in case of deviations. Contributes to improve Safety, Environment, Quality and Productivity performance. Leads / participates in Technical / Safety investigations. Conducts trials and report findings. Imparts knowledge to operating crew.