ATMOSPHERIC CORROSIONPresents a comprehensive look at atmospheric corrosion, combining expertise in corrosion science and atmospheric chemistry
Atmospheric corrosion has been a subject of engineering study, largely empirical, for nearly a century. Scientists came to the field rather later on and had considerable difficulty bringing their arsenal of tools to bear on the problem. Atmospheric corrosion was traditionally studied by specialists in corrosion having little knowledge of atmospheric chemistry, history, or prospects.
Atmospheric Corrosion provides a combined approach bringing together experimental corrosion and atmospheric chemistry. The second edition expands on this approach by including environmental aspects of corrosion, atmospheric corrosion modeling, and international corrosion exposure programs. The combination of specialties provides a more comprehensive coverage of the topic. These scientific insights into the corrosion process and its amelioration are the focus of this book.
Key topics include the following:Basic principles of atmospheric corrosion chemistryCorrosion mechanisms in controlled and uncontrolled environmentsDegradation of materials in architectural, transport, and structural applications; electronic devices; and cultural artifactsProtection of existing materials and choosing new ones that resist corrosionPrediction of how and where atmospheric corrosion may evolve in the future
Complete with appendices discussing experimental techniques, computer models, and the degradation of specific metals,Atmospheric Corrosion, Second Edition continues to be an invaluable resource for corrosion scientists, corrosion engineers, conservators, environmental scientists, and anyone interested in the theory and application of this evolving field. The book concerns primarily the atmospheric corrosion of metals and is written at a level suitable for advanced undergraduates or beginning graduate students in any of the physical or engineering sciences.
Preface xv
1 The Many Faces of Atmospheric Corrosion 1
1.1 Dr. Vernons Legacy 1
1.2 Concepts and Consequences 2
1.3 The Evolution of a Field 3
1.4 Controlled Laboratory Environments 4
1.5 Uncontrolled Field Environments 5
1.6 New Approaches to Atmospheric Corrosion Studies 6
1.7 An Overview of this Book 6
2 A Conceptual Picture of Atmospheric Corrosion 7
2.1 Introduction 7
2.2 Initial Stages of Atmospheric Corrosion 7
2.3 Intermediate Stages of Atmospheric Corrosion 11
2.4 Final Stages of Atmospheric Corrosion 17
Further Reading 20
3 A Multiregime Perspective on Atmospheric Corrosion Chemistry 22
3.1 Introduction to Moist-Layer Chemistry 22
3.2 The Gaseous Regime 24
3.3 The Interface Regime 25
3.4 The Liquid Regime 27
3.5 The Deposition Regime 28
3.6 The Electrodic Regime 30
3.7 The Solid Regime 31
3.8 The Multiregime Perspective 32
Further Reading 32
4 Atmospheric Gases and their Involvement in Corrosion 34
4.1 Chemical Species of Interest 34
4.2 Atmospheric Corrosive Gases 35
4.3 Historic Trends in Atmospheric Corrosive Gas Concentrations 40
4.4 Predicted Future Emissions of Corrosive Species 43
Further Reading 45
5 Atmospheric Particles and their Involvement in Corrosion 46
5.1 Introduction 46
5.2 Chemical Species of Interest 49
5.3 Sources of Atmospheric Aerosol Particles 50
5.4 Aerosol Particle Physics and Chemistry 51
5.5 Implications of Aerosol Particles for Atmospheric Corrosion 55
Further Reading 57
6 Corrosion in Laboratory Exposures 59
6.1 The Need for Well-Defined Laboratory Experiments 59
6.2 Considerations for Specific Metals 59
6.3 Design Considerations 60
6.4 Examples of Important Laboratory Exposures 65
6.5 Can Corrosion Processes in the Field be Reasonably Simulated by Laboratory Experiments? 67
6.6 Computational Model Studies of SO2-Induced Atmospheric Corrosion of Copper 70
6.7 Summary 76
Further Reading 77
7 Corrosion in Indoor Exposures 79
7.1 General Characteristics of Indoor Environments 79
7.2 The Interplay Between Pollutants and Corrosion Rates 85
7.3 Corrosion Rates 88
7.4 Indoor Corrosion Products 93
7.5 Indoor Environmental Classification 94
7.6 An Example of Indoor Corrosion: Metal Artifacts 95
7.7 Summary 98
Further Reading 99
8 Corrosion in Outdoor Exposures 100
8.1 The Effect of Exposure Conditions 100
8.2 Design Considerations 101
8.3 Influence of Exposure Parameters 103
8.4 DoseResponse Functions 114
8.5 Summary 118
Further Reading 118
9 Advanced Stages of Corrosion 121
9.1 Introduction 121
9.2 Evolution of Corrosion Products on Zinc 122
9.4 Evolution of Corrosion Products on Carbon Steel 140
9.5 Evolution of Corrosion Products on Aluminum 144
9.6 Summary 146
Further Reading 148
10 Environmental Dispersion of Metals From Corroded Outdoor Constructions 151
10.1 Introduction 151
10.2 Metal Dispersion (Runoff): Atmospheric Corrosion 152
10.3 Time-Dependent Aspects and Importance of Rain and Environmental Conditions 154
10.4 Influence of Construction Geometry on the Metal Runoff and Runoff Rate Predictions 159
10.5 Environmental Fate and Speciation: Importance for Risk Assessment and Management 162
Further Reading 163
11 Applied Atmospheric Corrosion: Electronic Devices 166
11.1 Introduction 166
11.2 Corrosion-Induced Failures of Contacts and Connectors 168
11.3 Corrosion-Induced Failures of Integrated Circuits 170
11.4 Accelerated Tests of Electronics 174
11.5 Classification of Environments with Respect to Corrosivity 175
11.6 Methods of Protection 177
Further Reading 180
12 Applied Atmospheric Corrosion: Automotive Corrosion and Corrosion in the Road Environment 181
12.1 Introduction 181
12.2 Typical Corrosion Rates in the Road Environment 182
12.3 Parameters Affecting Corrosion in Road Environments 183
12.4 Corrosion of Vehicles 188
12.5 Accelerated Corrosion Testing for Automotive Applications 190
Further Reading 196
13 Applied Atmospheric Corrosion: Alloys in Architecture 198
13.1 Introduction 198
13.2 Varying Exposure Conditions 199
13.3 Copper-Based Alloys 200
13.4 AluminumZinc Alloys 208
13.5 Weathering Steel 214
13.6 Stainless Steel 218
Further Reading 221
14 Applied Atmospheric Corrosion: Unesco Cultural Heritage Sites 224
14.1 Introduction 224
14.2 Description of Selected Sites 225
14.3 Estimation of Corrosion Rates 227
14.4 Estimation of Corrosion Costs 229
14.5 Preventing Further Damage Through Air Quality Policy 234
Further Reading 236
15 Scenarios for Atmospheric Corrosion in the Twenty-First Century 238
15.1 Atmospheric Corrosion in the Recent Millenium 239
15.2 Atmospheric Corrosion in the Twentieth Century and Today 240
15.3 Atmospheric Corrosion in the Twenty-First Century: Effect of Changes in Pollution 242
15.4 Atmospheric Corrosion in the Twenty-First Century: Effect of Changes in Climate 246
15.5 Responding to Increasing Rates of Corrosion 246
Further Reading 248
Appendix A Experimental Techniques in Atmospheric Corrosion 249
A.1 Introduction 249
A.2 Techniques for Detecting Mass Change 250
A.3 Techniques for Analyzing Surface Topography 251
A.4 Techniques for Analyzing Surface Composition 253
A.5 Techniques for Identifying Phases in Corrosion Products 255
A.6 Techniques for Corrosion Electrode Potential 256
A.7 Techniques for Monitoring Atmospheric Corrosive Species 258
A.8 Summary 259
Further Reading 260
Appendix B Computer Models of Atmospheric Corrosion 261
B.1 Formulating Computer Models 261
B.2 The Status of Computer Models of Atmospheric Corrosion 262
B.3 An Overview of Chemical Model Formulation 263
B.4 The Transport of Reactants 265
B.5 Physicochemical Processes 266
B.6 Electrochemical Processes 268
Further Reading 270
Appendix C The Atmospheric Corrosion Chemistry of Aluminum 272
C.1 Introduction 272
C.2 Corrosion Layer Formation Rates 272
C.3 The Morphology of Atmospheric Corrosion Layers on Aluminum 273
C.4 Chemical Mechanisms of Corrosion 274
C.5 Summary 280
Appendix D The Atmospheric Corrosion Chemistry of Carbonate Stone 282
D.1 Introduction 282
D.2 Corrosion Layer Formation Rates 282
D.3 Morphology of Atmospheric Corrosion on Carbonate Stone 283
D.4 Chemical Mechanisms of Carbonate Stone Corrosion 284
D.5 Summary 288
Appendix E The Atmospheric Corrosion Chemistry of Copper 290
E.1 Introduction 290
E.2 Corrosion Layer Formation Rates 291
E.3 The Morphology of Natural Patinas on Copper 291
E.4 Chemical Mechanisms of Copper Corrosion 292
E.5 Discussion 300
Appendix F The Atmospheric Corrosion Chemistry of Iron and Low Alloy Steels 302
F.1 Introduction 302
F.2 Formation Rates for Rust Layers 302
F.3 The Morphology of Natural Rust Layers 303
F.4 Chemical Mechanisms of Iron and Steel Corrosion 304
F.5 Stainless Steels in the Atmosphere 313
F.6 Summary 313
Appendix G The Atmospheric Corrosion Chemistry of Lead 316
G.1 Introduction 316
G.2 Environmental Interactions with Lead Surfaces 316
G.3 Physical Characteristics of Lead Corrosion 317
G.4 Chemical Mechanisms of Lead Corrosion 317
G.5 Physical and Chemical Characteristics of Corroding Lead Alloys 324
G.6 Summary 324
Further Reading 326
Appendix H The Atmospheric Corrosion Chemistry of Nickel 327
H.1 Introduction 327
H.2 Corrosion Layer Formation Rates 327
H.3 The Morphology of Atmospheric Corrosion Layers on Nickel 328
H.4 Chemical Mechanisms of Nickel Corrosion 328
H.5 Laboratory and Computational Studies of Nickels Atmospheric Corrosion 334
H.6 Conclusions 335
Further Reading 336
Appendix I The Atmospheric Corrosion Chemistry of Silver 337
I.1 Introduction 337
I.2 Environmental Interactions with Silver Surfaces 337
I.3 Chemical Mechanisms of Silver Corrosion 339
I.4 Physical Characteristics of Silver Corrosion 343
I.5 Chemical Transformation Sequences 345
Further Reading 347
Appendix J The Atmospheric Corrosion Chemistry of Zinc 348
J.1 Introduction 348
J.2 Corrosion Layer Formation Rates 348
J.3 The Morphology of Atmospheric Corrosion Layers on Zinc 349
J.4 Chemical Mechanisms of Zinc Corrosion 349
J.5 Transformation Processes 357
J.6 Summary 358
Appendix K Index of Minerals Related to Atmospheric Corrosion 360
Glossary 363
Index 367
