In recent years, significant developments have been made to increase the mechanical strength of steels in order to reduce the overall weight of structures, particularly in motor vehicles. Depending on the application, the increase in strength should not be at the expense of forming and in-use properties. The development of ultra-high strength steels requires a search for new trade-offs between these properties in order to optimize the final microstructure. New Advanced High Strength Steels analyzes the interactions between tensile mechanical properties and properties such as work hardening,…mehr
In recent years, significant developments have been made to increase the mechanical strength of steels in order to reduce the overall weight of structures, particularly in motor vehicles. Depending on the application, the increase in strength should not be at the expense of forming and in-use properties. The development of ultra-high strength steels requires a search for new trade-offs between these properties in order to optimize the final microstructure. New Advanced High Strength Steels analyzes the interactions between tensile mechanical properties and properties such as work hardening, anisotropy, resistance to rupture, fatigue life, corrosion resistance, crashworthiness, edge retention, hydrogen resistance and weldability. It also examines the links between the microstructural parameters of high-strength steels and the properties mentioned above. It highlights the metallurgical developments that have been necessary for the emergence of these new generations of steels. The book concludes with a look ahead to future developments in ultra-high strength steelsHinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Mohamed Gouné is a university professor at the University of Bordeaux, France, a researcher at the ICMCB and a specialist in the genesis of nano/microstructures in metal alloys. Thierry Iung is a metallurgy expert and head of metallurgy research for products and processes at ArcelorMittal, Maizières-lès-Metz. Jean-Hubert Schmitt is professor emeritus at Centrale Supélec, France. He is a specialist in the mechanical behavior of metallic alloys in relation to their microstructure.
Inhaltsangabe
Foreword xiii David EMBURY Introduction xvii Mohamed GOUNÉ, Thierry IUNG and Jean-Hubert SCHMITT Chapter 1 Strain Hardening and Tensile Properties 1 Mohamed GOUNÉ and Olivier BOUAZIZ 1.1 Introductory remarks 1 1.2 Stress/strain curve: macroscopic quantities 2 1.3 Behavior of a single-phase structure: microscopic approach 3 1.4 Strain hardening and mechanical behavior of precipitation hardened micro-alloyed steels 7 1.5 Strain hardening and mechanical behavior of martensitic steels 19 1.6 Austenitic steels Fe-0.6C-22Mn with TWIP effect 23 1.7 Multiphase quenching and partitioning steels 28 1.8 Conclusion 38 1.9 References 39 Chapter 2 Anisotropy and Mechanical Properties 43 Hélène RÉGLÉ and Brigitte BACROIX 2.1 Challenges 44 2.2 Textural anisotropy and mechanical properties 46 2.3 Conclusion 61 2.4 Calculation details 62 2.5 References 67 Chapter 3 Compromise between Strength and Fracture Resistance 71 Anne-Françoise GOURGUES-LORENZON and Thierry IUNG 3.1 Introduction 71 3.2 Methods for measuring the resistance to damage and fracture 71 3.3 Physical mechanisms and microstructural control of damage and fracture 80 3.4 Examples of application 89 3.5 Conclusion and outlook 99 3.6 References 100 Chapter 4 Compromise between Tensile and Fatigue Strength 103 Véronique FAVIER, André GALTIER, Rémi MUNIER and Bastien WEBER 4.1 Toughness: the main cause of part failure in service 103 4.2 Fatigue: from crack initiation to failure 104 4.3 How to improve fatigue life through metallurgy? 112 4.4 Increasing role of defects in high strength steels 123 4.5 Specific treatments for fatigue performance 126 4.6 Conclusion 128 4.7 References 129 Chapter 5 High Strength Steels and Coatings 133 Marie-Laurence GIORGI and Jean-Michel MATAIGNE 5.1 Introduction 133 5.2 The continuous galvanizing process 134 5.3 Selective oxidation during continuous annealing 143 5.4 Coatings on high-strength steels 149 5.5 Conclusion 160 5.6 References 161 Chapter 6 Corrosion Resistant Steels with High Mechanical Properties 167 Franck TANCRET, Christine BLANC and Vincent VIGNAL 6.1 Introduction 167 6.2 General principles of corrosion/oxidation and corrosion/oxidation resistance 168 6.3 Wet corrosion resistant and high strength steels 169 6.4 Alloys resistant to hot oxidation and creep 184 6.5 Conclusion 193 6.6 References 194 Chapter 7 Crashworthiness by Steels 197 Dominique CORNETTE, Pascal DIETSCH, Kevin TIHAY and Sébastien ALLAIN 7.1 Introduction and industrial issues 197 7.2 The tests in force, or how to pass from the behavior of the complete vehicle to the behavior of the material 198 7.3 Parameters influencing the material during the manufacturing process and the behavior in service 214 7.4 Adequacy between material properties and crash behavior according to the different evaluation criteria 220 7.5 Conclusion 230 7.6 References 230 Chapter 8 Cut Edge Behavior 233 Stéphane GODET, Ève-Line CADOTTE and Astrid PERLADE 8.1 Introduction/problem analysis 233 8.2 Cutting processes and characteristics of the cut edge 234 8.3 Behavior of the cut edge 240 8.4 Conclusion 260 8.5 References 260 Chapter 9 The Relationship between Mechanical Strength and Hydrogen Embrittlement 263 Xavier FEAUGAS and Colin SCOTT 9.1 Introduction 263 9.2 How to identify and characterize HE 264 9.3 Solubility and (apparent) diffusion coefficients of hydrogen in steels 268 9.4 Case study: embrittlement of fastener steels 276 9.5 Case study: HE of thin sheets 284 9.6 Research and perspectives 293 9.7 References 295 Chapter 10 Weldability of High Strength Steels 303 Thomas DUPUY, Jessy HAOUAS and Laurent JUBIN 10.1 Introduction 303 10.2 Weldability issues 307 10.3 Solutions for a good weldability of high-strength steels 324 10.4 References 330 Appendix: A Brief Review of Steel Metallurgy 333 Thierry IUNG and Jean-Hubert SCHMITT Postface: What's Next for Ultra-high Strength Steels? 373 François MUDRY List of Authors 381 Index 385
Foreword xiii David EMBURY Introduction xvii Mohamed GOUNÉ, Thierry IUNG and Jean-Hubert SCHMITT Chapter 1 Strain Hardening and Tensile Properties 1 Mohamed GOUNÉ and Olivier BOUAZIZ 1.1 Introductory remarks 1 1.2 Stress/strain curve: macroscopic quantities 2 1.3 Behavior of a single-phase structure: microscopic approach 3 1.4 Strain hardening and mechanical behavior of precipitation hardened micro-alloyed steels 7 1.5 Strain hardening and mechanical behavior of martensitic steels 19 1.6 Austenitic steels Fe-0.6C-22Mn with TWIP effect 23 1.7 Multiphase quenching and partitioning steels 28 1.8 Conclusion 38 1.9 References 39 Chapter 2 Anisotropy and Mechanical Properties 43 Hélène RÉGLÉ and Brigitte BACROIX 2.1 Challenges 44 2.2 Textural anisotropy and mechanical properties 46 2.3 Conclusion 61 2.4 Calculation details 62 2.5 References 67 Chapter 3 Compromise between Strength and Fracture Resistance 71 Anne-Françoise GOURGUES-LORENZON and Thierry IUNG 3.1 Introduction 71 3.2 Methods for measuring the resistance to damage and fracture 71 3.3 Physical mechanisms and microstructural control of damage and fracture 80 3.4 Examples of application 89 3.5 Conclusion and outlook 99 3.6 References 100 Chapter 4 Compromise between Tensile and Fatigue Strength 103 Véronique FAVIER, André GALTIER, Rémi MUNIER and Bastien WEBER 4.1 Toughness: the main cause of part failure in service 103 4.2 Fatigue: from crack initiation to failure 104 4.3 How to improve fatigue life through metallurgy? 112 4.4 Increasing role of defects in high strength steels 123 4.5 Specific treatments for fatigue performance 126 4.6 Conclusion 128 4.7 References 129 Chapter 5 High Strength Steels and Coatings 133 Marie-Laurence GIORGI and Jean-Michel MATAIGNE 5.1 Introduction 133 5.2 The continuous galvanizing process 134 5.3 Selective oxidation during continuous annealing 143 5.4 Coatings on high-strength steels 149 5.5 Conclusion 160 5.6 References 161 Chapter 6 Corrosion Resistant Steels with High Mechanical Properties 167 Franck TANCRET, Christine BLANC and Vincent VIGNAL 6.1 Introduction 167 6.2 General principles of corrosion/oxidation and corrosion/oxidation resistance 168 6.3 Wet corrosion resistant and high strength steels 169 6.4 Alloys resistant to hot oxidation and creep 184 6.5 Conclusion 193 6.6 References 194 Chapter 7 Crashworthiness by Steels 197 Dominique CORNETTE, Pascal DIETSCH, Kevin TIHAY and Sébastien ALLAIN 7.1 Introduction and industrial issues 197 7.2 The tests in force, or how to pass from the behavior of the complete vehicle to the behavior of the material 198 7.3 Parameters influencing the material during the manufacturing process and the behavior in service 214 7.4 Adequacy between material properties and crash behavior according to the different evaluation criteria 220 7.5 Conclusion 230 7.6 References 230 Chapter 8 Cut Edge Behavior 233 Stéphane GODET, Ève-Line CADOTTE and Astrid PERLADE 8.1 Introduction/problem analysis 233 8.2 Cutting processes and characteristics of the cut edge 234 8.3 Behavior of the cut edge 240 8.4 Conclusion 260 8.5 References 260 Chapter 9 The Relationship between Mechanical Strength and Hydrogen Embrittlement 263 Xavier FEAUGAS and Colin SCOTT 9.1 Introduction 263 9.2 How to identify and characterize HE 264 9.3 Solubility and (apparent) diffusion coefficients of hydrogen in steels 268 9.4 Case study: embrittlement of fastener steels 276 9.5 Case study: HE of thin sheets 284 9.6 Research and perspectives 293 9.7 References 295 Chapter 10 Weldability of High Strength Steels 303 Thomas DUPUY, Jessy HAOUAS and Laurent JUBIN 10.1 Introduction 303 10.2 Weldability issues 307 10.3 Solutions for a good weldability of high-strength steels 324 10.4 References 330 Appendix: A Brief Review of Steel Metallurgy 333 Thierry IUNG and Jean-Hubert SCHMITT Postface: What's Next for Ultra-high Strength Steels? 373 François MUDRY List of Authors 381 Index 385
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