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pure magnesium alloy ultrasonic vibration

STUDY OF MECHANICAL VIBRATION ON STRUCTURE AND PROPERTIES OF Mg-9Al ALLOY …

The AZ91 magnesium alloy (with a nominal composition of Mg-9 wt% Al- 1mass% Zn) was treated by mechanical vibrations. The AZ91 Mg alloy was prepared by using ingots of pure Mg (99.95%), pure Al (99.99%), and pure Zn (99.9%). Figure 1 shows the

Wetting Behavior in Ultrasonic Vibration-Assisted …

In this study, Sn-Ag-Ti ternary alloy has been used as the active solder to braze pure aluminum and graphite in atmospheric conditions using ultrasonic vibration as an aid. The authors studied the formation, composition and decomposition temperature of the surface oxides of the active solder under atmospheric conditions. In addition, the wettability of Sn-5Ag-8Ti active solder on the surface

Microstructure character of AZ80 magnesium alloy ingots cast under electromagnetic vibration

intensity ultrasonic vibration into the melt has the effect on the suppression of undesirable dendritic zone and refines the Abstract: Microstructure evolutions of an AZ80 magnesium alloy ingot with 300 mm in diameter cast with and without the electromagnetic

Grain Refinement of Al-Mg-Sc Alloy by Ultrasonic Treatment

ultrasonic vibration. Ultrasonic frequency of 20.3 ± 0.25 kHz at electric power of 30% for 30 s was applied for each pro-cessing condition. After ultrasonic treatment, the molten alloy was poured into a copper mould and immediately cooled to aient

Materials | Free Full-Text | Microstructure and Formation …

Ultrasound-assisted transient liquid phase bonding (U-TLP) has been regarded as a promising brazing process to join magnesium alloys with a Sn and Zn interlayer; however, the formation of brittle magnesium intermetallic compounds (Mg2Sn, MgZn, and MgZn2) compromises the mechanical properties of the joints. In this study, Mg alloy U-TLP joints with a Ni interlayer were evaluated based …

Ultrafast consolidation of bulk nanocrystalline titanium …

15/1/2018· In summary, an ultrafast consolidation method, namely ultrasonic vibration consolidation (UVC), is developed to fabrie bulk nanocrystalline titanium alloy using metallic glass powders as …

Corrosion and Surface Treatment of Magnesium Alloys | …

4/2/2014· Generally, the corrosion resistance of magnesium alloy is better than that of pure magnesium, because other corrosion resistant phases exist. An analysis of the films formed when magnesium alloys containing Al, Mn, or Zn are exposed to the atmosphere, shows an enrichment of the secondary constituents.

Forging Billet | Extruded Magnesium | Luxfer MEL …

Elektron 43 Magnesium Alloy Forging Billet Our flagship high performance alloy designed for the most demanding appliions. This rare earth containing alloy exhibits isotropic high strength with excellent corrosion resistance while being 33% lighter than typical aluminium alloys.

Effect of Ultrasonic Vibration on Structure Refinement of Metals

Effect of ultrasonic vibration on Sn-Sb alloy The composition of Sn-Sb alloy is 11% Sb and Sn. Fig.2 shows microstructure of Sn-Sb alloy without and with 600W ultrasonic treatments [7]. In absence of ultrasonic vibration, the matrix α phase is coarsened and

US Patent for Magnesium based composite material and …

The magnesium based composite material includes a magnesium based metal matrix and nanoparticles dispersed in the magnesium based metal matrix in a weight percentage of a range from about 0.01% to about 2%. The present disclosure also relates to a

Ultrasonic Welding of Magnesium–Titanium Dissimilar …

In this paper, ultrasonic welding was carried out on magnesium–titanium dissimilar alloys to investigate the influences of welding parameters on joint strength. The analysis of variance was adopted to study the weight of each welding parameter and their interactions.

Nearâ threshold fatigue crack growth properties of wrought magnesium alloy …

cyclic properties of magnesium alloys. Even in the absence of air, when cycled in an environmental scan-ning electron microscope in pure water vapour instead of vacuum, fatigue crack growth in cast AM60 is acceler-ated.15 On the other hand, magnesium4

KAKEN — Research Projects | The soldering aluminum …

This study was carried out to make the soldering possible and to obtain the joints with higher sttrength introducing ultrasonic vibration into the soldered layrs. Since we have been successful in soldring the pure aluminum in atmosphere withou flux by using ultrasonic vibration, we tried to apply to the aluminum alloy containing magnasium difficult to be solderd with the aid of ultrasonic

Effect of Ultrasonic Vibration on the Dispersion of …

Ultrasonic vibration was applied to the surface of AZ91D/CNF slurries in order to homogeneously disperse the reinforcement through the semi-solid matrix, and eliminate the clusters of nano-fibres originated during previous processes. The method utilized to produce

The Four Major Appliions of Magnesium Alloys

The Magnesium alloy sacial anode, as one of the effective method of preventing metal corrosion, is widely used in the extended family or industrial water heater, underground iron pipes, cables, Kentucky, oil tank, water distiller, the ship-shell, and the life of the

What are the advantages in using magnesium alloy …

19/11/2003· Magnesium alloy is usually touted as having a higher specific strength than aluminum alloy, but of course it depends somewhat on which alloys you pick. Although magnesium alloys have a considerably lower density, specific stiffness of magnesium alloys is about the same as aluminum alloys, so it''s not immediately obvious what the advantages would be from a vibration point of view, at least …

Ultrasonic Vibration-Assisted Ball-Burnishing Process | …

The ultrasonic-vibration-assisted ball-burnishing (UVABB) process has been extensively reported by Jerez-Mesa et al. (2018) []. This tool works so that vibrations are introduced through a sonotrode at whose tip the burnishing ball is installed, and whose length changes as an effect of thickness variation of a piezoelectric stack subjected to a difference of potential [ 21 ] .

Ultrasonic refinement of magnesium by cavitation: …

This work examines the role of wall crystals in ultrasonic refinement of pure magnesium and Mg-3Al-1Zn alloy, where a titanium sonotrode is immersed into the melt for direct ultrasoniion at an amplitude of 30 μm and a typical frequency of 20 kHz.

Enhanced corrosion behavior and mechanical properties …

In this study, ultrasonic‐assisted friction stir processing (UaFSP) and friction stir processing (FSP) were conducted on AZ91 magnesium alloy sheets, and their microstructure, corrosion behavior, and mechanical properties were comparatively investigated.

Ultrasonic welding between mild steel sheet and Al–Mg …

Ultrasonic welding between mild steel sheet and Al–Mg alloy sheet___ 248|6 Ultrasonic welding between mild steel sheet and Al–Mg alloy sheet___。G Model PROTEC-12588; No. of Pages 6

Wrought Magnesium Plate for Vibration Testing - Luxfer …

13/2/2019· The vibration damping properties of magnesium has lead the vibration testing industry to accept magnesium as the material of choice for vibration slip and shaker table components for many years. This includes table tops, head plates, head expanders, and fixtures.

Microstructure evolution and mechanical properties of ultrasonic …

ultrasonic vibration at the temperature of 380, 400 and 420 C, respectively. But the brazed joints did not obtain adequate strength due to the grain boundary segregation of magnesium element [14]. Ultrasonic vibration brazing of A5056 aluminum alloys was also

CiteSeerX — Effect of Ultrasonic Vibration on the …

BibTeX @MISC{Mussi_effectof, author = {R. G. S. Mussi and T. Motegi and F. Tanabe and H. Kawamura and K. Anzai and D. Shiba and M. Suganuma}, title = {Effect of Ultrasonic Vibration on the Dispersion of Carbon Nano-Fibre Reinforcement through Semi-Solid AZ91D Magnesium Alloy}, year = {}}

Effects of ultrasonic vibration on performance and …

Abstract: Ultrasonic vibration can reduce the forming force, decrease the friction in the metal forming process and improve the surface quality of the workpiece effectively. Tensile tests of AZ31 magnesium alloy were carried out. The stress–strain relationship, fracture

CiteSeerX — Effect of Ultrasonic and Mechanical …

This paper investigated the effect of ultrasonic vibration (UV) and mechanical vibration (MV) treatment of Mg-3Zn-0.8Ca biodegradable alloy on its corrosion behavior in comparison to the as-cast alloy (CC).

Effects of three-dimensional vibration on laser cladding …

In this study, an SS316L layer was fabried on a 45 steel substrate using a laser cladding process assisted by three-dimensional vibration. The microstructures and the properties of the coating and the bonding interface with various