The magnesium AZ31 alloy was swaged with rotary pressure with the aim of redefining the microstructure and improving mechanical and fatigue properties. The rotary swaging process and subsequent ageing improved the yield stress in tension and compression. In the present study, the investigation was focused on fatigue behaviour. The samples were cycled in a symmetric regime with a frequency of 35 Hz. A dependence of the stress amplitude on the number of cycles up to the fracture was estimated. The microstructure of the samples and fracture surfaces was analysed with a scanning electron microscope. The fatigue process was influenced by the pronounced texture formed in the swaging process. The fatigue properties of the swaged samples improved substantially-the endurance limit based on 10 cycles was approximately 120 MPa-compared to those of the cast alloy. The analysis of the fracture surfaces showed a transcrystalline fatigue fracture.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9656421 | PMC |
| http://dx.doi.org/10.3390/ma15217541 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effect of the Sodium Silicate Inhibitor on the Corrosion Protection of AZ31 Magnesium Alloy.
Materials (Basel)
November 2024
School of Advanced Manufacturing, Nanchang University, Nanchang 330031, China.
The effect of the sodium silicate inhibitor on the corrosion protection of the AZ31 magnesium alloy at room temperature was investigated. The results of electrochemical measurement and weight loss experiments showed that incorporating the sodium silicate significantly enhanced the anti-corrosion property of the AZ31 alloy. When the alloy was immersed in the corrosive solution with the 0.
View Article and Find Full Text PDFInvestigation of electrochemical micromachining on magnesium alloy using hollow tool electrode.
Ultrasonics
March 2025
Department of Mechanical Engineering, Mahendra Polytechnic College, Mallasamudram, Namakkal, Tamil Nadu 637 503, India.
This study investigates the application of Electrochemical Micromachining (ECMM) on magnesium alloy AZ31 using a hollow tool electrode. Magnesium alloys, particularly AZ31, are valued for their lightweight properties and strength-to-weight ratio but pose challenges in precision machining due to their high reactivity and susceptibility to corrosion. Utilizing a hollow tool electrode in ECMM offers potential advantages in precision and control, crucial for micro-scale manufacturing applications.
View Article and Find Full Text PDFEnhanced adhesion and wear resistance of DLC films on AZ31 alloy achieved with high bias voltage.
Heliyon
October 2024
School of Intelligent Manufacturing Engineering, Harbin Huade University, Harbin, 150025, Heilongjiang, China.
Article Synopsis
- Diamond-like carbon (DLC) films were applied to AZ31 surfaces without an adhesive layer, showcasing high adhesion and excellent wear resistance.
- Various structural analyses including SEM, TEM, and Raman spectroscopy were employed, and mechanical properties were assessed through nano-indentation and scratch tests.
- High substrate bias (-500 to -800 V) resulted in greater compressive stress and film hardness, while moderate to low bias levels (-300 to 500 V and 0 to -300 V, respectively) exhibited diminishing mechanical properties as substrate temperature increased.
Effects of Copper Doping on Fluorohydroxyapatite Coating: Analysis of Microstructure, Biocompatibility, Corrosion Resistance, and Cell Adhesion Characteristics.
Inorg Chem
October 2024
Department of Biology, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, P.O. Box 53751-71379, Tabriz 53751-71379, Iran.
In this research, Cu-doped fluorohydroxyapatite (Cu-FHAp) coatings containing varying levels of Cu in electrolyte as a dopant were synthesized by the ultrasonic-assisted pulse-reverse electrodeposition method on AZ31 alloy to improve the biocompatibility and corrosion resistance of the alloy for biomedical applications. Microstructural analysis revealed that the inclusion of the Cu dopant results in the formation of a more uniform coating. Energy dispersive spectroscopy analysis highlights a notable incorporation of copper within the fluorohydroxyapatite structure.
View Article and Find Full Text PDFImprovement of corrosion resistance and adhesion of hydroxyapatite coating on AZ31 alloy by an anodizing intermediate layer.
J Appl Biomater Funct Mater
October 2024
Institute of Materials Science, Vietnam Academy of Science and Technology, Cau Giay District, Hanoi, Viet Nam.
Objectives: The primary objective of this study is using an anodizing intermediate layer to improve corrosion resistance and adhesion of hydroxyapatite coated AZ31 alloy for applications in biodegradable implants.
Methods: An anodizing intermediate layer was formed on the surface of AZ31 substrate at various anodizing voltage of 10, 20, 30, and 40 V respectively by anodizing process. HAp was grow on the surface of AZ31 substrate at 90°C and pH solution of 7.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!