Topic
Fatigue limit
About: Fatigue limit is a research topic. Over the lifetime, 20489 publications have been published within this topic receiving 305744 citations. The topic is also known as: endurance limit & fatigue strength.
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TL;DR: A review of surface modification techniques for titanium and titanium alloys can be found in this article, where the authors have shown that the wear resistance, corrosion resistance, and biological properties can be improved selectively using the appropriate surface treatment techniques while the desirable bulk attributes of the materials are retained.
Abstract: Titanium and titanium alloys are widely used in biomedical devices and components, especially as hard tissue replacements as well as in cardiac and cardiovascular applications, because of their desirable properties, such as relatively low modulus, good fatigue strength, formability, machinability, corrosion resistance, and biocompatibility. However, titanium and its alloys cannot meet all of the clinical requirements. Therefore, in order to improve the biological, chemical, and mechanical properties, surface modification is often performed. This article reviews the various surface modification technologies pertaining to titanium and titanium alloys including mechanical treatment, thermal spraying, sol–gel, chemical and electrochemical treatment, and ion implantation from the perspective of biomedical engineering. Recent work has shown that the wear resistance, corrosion resistance, and biological properties of titanium and titanium alloys can be improved selectively using the appropriate surface treatment techniques while the desirable bulk attributes of the materials are retained. The proper surface treatment expands the use of titanium and titanium alloys in the biomedical fields. Some of the recent applications are also discussed in this paper.
3,019 citations
Book•
01 Jan 2001
TL;DR: In this paper, the authors introduce the concept of Fatigue as a Phenomenon in the material and present an overview of the properties of materials and their properties under variable-amplitude loading.
Abstract: Preface. Frequently used symbols, acronyms and units. 1. Introduction to Fatigue of Structures and Materials. Part 1: Introductory Chapters on Fatigue. 2. Fatigue as a Phenomenon in the Material. 3. Stress Concentrations at Notches. 4. Residual Stresses. 5. Stress Intensity Factors of Cracks. 6. Fatigue Properties of Materials. 7. The Fatigue Strength of Notched Specimens. Analysis and Predictions. 8. Fatigue Crack Growth. Analysis and Predictions. Part 2: Load Spectra and Fatigue Under Variable-Amplitude Loading. 9. Load Spectra. 10. Fatigue under Variable-Amplitude Loading. 11. Fatigue Crack Growth under Variable-Amplitude Loading. Part 3: Fatigue Tests and Scatter. 12. Fatigue and Scatter. 13. Fatigue Tests. Part 4: Special Fatigue Conditions. 14. Surface Treatments. 15. Fretting Corrosion. 16. Corrosion Fatigue. 17. High-Temperature and Low-Temperature Fatigue. Part 5: Fatigue of Joints and Structures. 18. Fatigue of Joints. 19. Fatigue of Structures. Design Procedures. Part 6: Arall and Glare, Fiber-Metal Laminates. 20. The Fatigue Resistance of the Fiber-Metal Laminates Arall and Glare. Subject index.
1,351 citations
TL;DR: In this article, the microstructure-defect-property relationship under cyclic loading for a TiAl6V4 alloy processed by selective laser melting is investigated. And the results show that the micron sized pores mainly affect fatigue strength, while residual stresses have a strong impact on fatigue crack growth.
1,079 citations
TL;DR: The following are described with regard to biomedical applications of titanium alloys: the Young's modulus, wear properties, notch fatigue strength, fatigue behaviour on relation to ageing treatment, and multifunctional deformation behaviours of Titanium alloys.
Abstract: Young's modulus as well as tensile strength, ductility, fatigue life, fretting fatigue life, wear properties, functionalities, etc., should be adjusted to levels that are suitable for structural biomaterials used in implants that replace hard tissue. These factors may be collectively referred to as mechanical biocompatibilities. In this paper, the following are described with regard to biomedical applications of titanium alloys: the Young's modulus, wear properties, notch fatigue strength, fatigue behaviour on relation to ageing treatment, improvement of fatigue strength, fatigue crack propagation resistance and ductility by the deformation-induced martensitic transformation of the unstable beta phase, and multifunctional deformation behaviours of titanium alloys.
1,022 citations
TL;DR: A brief overview of the recent progress made in improving mechanical properties of nanocrystalline materials, and in quantitatively and mechanistically understanding the underlying mechanisms is presented in this paper.
994 citations