Mechanical Aspects of High Entropy Alloys

Fundamentals, Modeling, and Properties
Erscheinungsjahr 2027
ISBN: 978-0-443-23822-2
Verlag: Elsevier Science

Buch, Englisch, 410 Seiten, Format (B × H): 152 mm x 229 mm

Mechanical Aspects of High Entropy Alloys: Fundamentals, Modeling, and Properties is structured by the sub-category of mechanical behavior, covering almost all key themes in this area, including strength, ductility, creep, fracture, fatigue, small-scale mechanical behavior, strengthening mechanisms, deformation mechanisms, and serrated plastic flow. For each individual topic, the focus is geared towards the distinctive characteristics of high-entropy alloys (HEA).

This book is a valuable resource to advanced students and researchers in need of an entry point to the field of HEAs, and experienced academic and industrial researchers who wish to either deepen their knowledge or gain inspiration during the process of their HEA research.

Autoren/Hrsg.

Li, Weidong

Brechtl, Jamieson

Fachgebiete

• Technische Wissenschaften Maschinenbau | Werkstoffkunde Maschinenbau
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde
• Technische Wissenschaften Verfahrenstechnik | Chemieingenieurwesen | Biotechnologie Metallurgie

Inhaltsverzeichnis

Part 1. Introduction
1. A historical sketch
2. Definitions
3. Classifications
4. Thermodynamics
5. Chemistries
6. Microstructures
7. Distinctive characteristics compared to conventional alloys
8. Current status and trend

Part 2. Mechanistic design approach
9. Empirical design
10. Mechanism-based design
11. Application-driven design
12. Computation-aided design
13. Machine learning assisted design
14. High-throughput experimentation
15. High-throughput computation
16. Comparison with tranditional alloys
17. Summary and outlook

Part 3. Microstructure
18. Phase structures
19. Grain structures
20. Grain boundaries
21. Dislocation characters and dynamics
22. Twins
23. Stacking faults
24. Precipitates
25. Short range order
26. Heterogeneities
27. Comparison with traditional alloys
28. Summary and outlook

Part 4. Strength and ductility
29. Composition effect
30. Processing effect
31. Microstructure effect
32. Temperature effect
33. Strength-ductility trade-off
34. Strategies to overcome trength-ductility trade-off
35. Comparison with traditional alloys
36. Summary and outlook

Part 5. Deformation mechanisms
37. Yielding behavior
38. Dislocation-mediated deformation
39. Twinning-mediated deformation
40. Stacking-fault-mediated deformation
41. Martensitic-transformation-mediated deformation
42. Grain-size effects
43. Strain rate and temperature effects
44. Role of chemical heterogeneities
45. Role of short-range ordering
46. Synergistic-deformation mechanisms
47. Comparison with traditional alloys
48. Summary and outlook

Part 6. Strengthening mechanisms

49. Lattice distortion
50. Solid-solution strengthening
51. Dislocation strengthening
52. Grain-boundary strengthening
53. Precipitation strengthening
54. Twin-boundary strengthening
55. Phase-transformation strengthening
56. Short-range-order strengthening
57. Comparison with traditional alloys
58. Summary and outlook

Part 7. Serrated plastic flow
59. Factors affecting serration behavior
60. Link between micro-mechanisms and macroscopic properties
61. Theoretical modeling
62. Experimental studies
63. Comparison with traditional alloys
64. Summary and outlook

Part 8. Creep
65. Creep characterization
66. Creep mechanisms
67. Influencing factors
68. Comparison with tranditional alloys
69. Summary and future work

Part 9. Fracture
70. Fracture-toughness characterization
71. Fracture toughness
72. Fractography
73. Fracture toughness – fractography correlation
74. Fracture mechanisms
75. Comparison with tranditional alloys
76. Summary and outlook
77. Fatigue
78. Low-cycle fatigue
79. High-cycle fatigue
80. Fatigue-crack-growth rate
81. Fatigue mechanisms
82. Comparisons with tranditional alloys
83. Summary and outlook

Part 1.1 Small-scale mechanical behaviors
84. Nano- and micro-pillar compression
85. Nanoindentation
86. Small-scale deformation mechanisms
87. Comparison with bulk counterparts
88. Comparison with traditional alloys
89. Summary and outlook

Part 12. Potential applications
90. Structural applications
91. Functional applications
92. Current endeavors toward applications
93. Assessment on tranditional alloy replacement
94. Summary and outlook

Part 13. Future directions

Part 14. Conclusions

Über Autor(innen)

Li, Weidong
Dr. Weidong Li obtained his B.S. in Materials Science and Engineering from China University of Geoscience (Beijing) in 2007, M.S. in Materials Processing Engineering from University of Science and Technology Beijing in 2010, and Ph.D. in Materials Science and Engineering from University of Tennessee in 2013. He has been serving the Department of Materials Science and Engineering at the University of Tennessee as an adjunct faculty member since 2018. Furthermore, he has nearly ten-year industrial experience, working in R&D units of the ceramic, rubber and tire, and aerospace industries on a variety of topics. His research interests generally lie in the alloy design, integrated computational materials engineering (ICME), fracture and fatigue, and mechanical behavior of materials, specifically in materials like high-entropy alloys, superalloys, and specialty steels.

Brechtl, Jamieson
Dr. Jamieson Brechtl obtained his B.S. in Nuclear Engineering and his M.S. in Nuclear Engineering and Engineering Physics from the University of Wisconsin, Madison, in 2012. He later obtained his Ph.D. in Energy Science and Engineering from the University of Tennessee, Knoxville, in 2019. Currently, he works as a Postdoctoral Research Associate in the Multifunctional Equipment Integration Group at the Oak Ridge National Laboratory. His research interests include plastic deformation, irradiation effects, nanoindentation, X-ray and neutron diffraction, microscopy, high-entropy alloys, and bulk-metallic glasses. He has authored or co-authored over thirty journal papers and presented at numerous engineering conferences. He was awarded the Chancellor’s Citation for Extraordinary Professional Promise from the University of Tennessee in 2019. He is also a current member of The Minerals, Metals and Materials Society (TMS).