Nano-Engineering of High Strength Steels (Topics in Mining, Metallurgy and Materials Engineering)

Foreword
Preface
Contents
Abbreviations
1 Introduction
2 General Aspects of Nanostructure
	2.1 Nanostructures in Metallic Materials
		2.1.1 Ultrafine-Grained Structure
		2.1.2 Nano-Laminates
		2.1.3 Nano-Plates
		2.1.4 Nano-Precipitates
		2.1.5 Nano-Twins
	2.2 Processing of Nanostructured Metallic Materials
		2.2.1 Severe Plastic Deformation (SPD)
		2.2.2 Thermomechanical Treatment (TMT) Processing
		2.2.3 Solid Reaction
	2.3 Properties of Nanostructures
	2.4 Applications of Nanostructures
	2.5 Nano-Engineering of Metallic Materials
	References
3 High Strength Steels
	3.1 Development of High Strength Steels
		3.1.1 1st Generation Advanced High Strength Steels
		3.1.2 2nd Generation Advanced High Strength Steels
		3.1.3 3rd Generation Advanced High Strength Steels
	3.2 Deformation Mechanisms and Strain Hardening
		3.2.1 Transformation-Induced Plasticity (TRIP)
		3.2.2 Twinning-Induced Plasticity (TWIP)
		3.2.3 Microband-Induced Plasticity (MBIP)
		3.2.4 Dynamic Strain Aging (DSA)
	3.3 SFE and 3D Deformation Mechanisms Map
		3.3.1 Stacking Fault and Stacking Fault Energy
		3.3.2 Experimental and Calculation Methods to Determine Stacking Fault Energy
		3.3.3 Thermodynamic Description of the Steels in Fe-Mn-C and Fe-Mn-Al-C Systems
		3.3.4 Thermodynamics-Based Deformation Mechanisms Maps Calculation
	3.4 Prediction and Control of Strain Hardening Behaviour in High-Mn Austenitic Steels
		3.4.1 Prediction of the Effect of Chemical Composition and Temperature on Mechanism Maps
		3.4.2 Influence of Temperature on the Deformation Behaviour of Fe-0.3C-17Mn-1.5Al Steel
		3.4.3 Influence of Chemical Composition on Deformation Behaviours of Fe-Mn-C and Fe-Mn-Al-C Steels with iso-SFE
		3.4.4 Influence of Chemical Composition on Strain Hardening of Fe-Mn-C and Fe-Mn-Al-C Steels with iso-SFE
	3.5 Summary
	References
4 Nanostructure Characterization Methods
	4.1 High Energy Synchrotron X-Ray Diffraction (SYXRD)
		4.1.1 Principle of SYXRD
		4.1.2 Instrumental Set-Up and Sample Preparation
		4.1.3 Data Analysis Based on Rietveld Method
	4.2 Small Angle Neutron Scattering (SANS)
		4.2.1 Introduction to SANS
		4.2.2 Experimental Set-Up and Sample Preparation
		4.2.3 Data Analysis
	4.3 Atom Probe Tomography (APT)
		4.3.1 Development of APT
		4.3.2 Principle of APT
		4.3.3 Sample Preparation
		4.3.4 3D Atoms Map Reconstruction
	4.4 High-Resolution Transmission Electron Microscopy (HRTEM)
		4.4.1 Introduction to Electron Crystallography
		4.4.2 Principles of TEM/STEM
		4.4.3 Electron Microscopy and Electron Diffraction
		4.4.4 Sample Preparation and Measurements of HRTEM
	4.5 Summary
	References
5 Precipitation Engineering
	5.1 Definition and History
	5.2 Precipitation Strengthening Mechanisms
		5.2.1 Precipitation Strengthening Mechanisms
		5.2.2 Influences of Precipitate Characteristics on Strengthening
	5.3 Nano-Precipitation Strengthening in Steels
	5.4 Applications
		5.4.1 Coherent Precipitation Strengthening in HMnS Steels
		5.4.2 Microalloyed Carbides Strengthening in MMnS Steels
	5.5 Summary
	References
6 Interface Engineering
	6.1 Definition and History
	6.2 Interfaces Characteristics During Phase Transformations
	6.3 Interface Engineering in High Strength Steels
	6.4 Application
		6.4.1 C and Mn Partitioning Across Bcc/Fcc Interface in MMnS Steels
		6.4.2 Influence of Microstructural Morphology on Hydrogen Embrittlement
		6.4.3 Carbon Enrichment at Nano-Twin Boundaries in Bearing Steels
	6.5 Summary
	References
7 Short-Range Ordering Engineering
	7.1 Definition and History
	7.2 Short-Range Ordering (SRO) in Metallic Materials
		7.2.1 Formation of SRO in Metallic Materials
		7.2.2 Microstructure Characterization of SRO in Metallic Materials
		7.2.3 Influence of SRO on the Mechanical Properties in Metallic Materials
	7.3 Applications
		7.3.1 Study on a High Entropy Alloy by High Energy Synchrotron X-Ray Diffraction and SANS
		7.3.2 Experimental Observation of Kappa Phase Formation Sequences by In-Situ Synchrotron Diffraction
		7.3.3 Local Deformation and Mn-C Short-Range Ordering in a High-Mn Fe-18Mn-0.6C Steel
	7.4 Summary
	References
8 Conclusions and Final Remark