The Yttrium-Incorporated Aluminizing of Mg-3%Al Alloy for Improved Tribological and Corrosion Properties

Nouri, Meisam; Li, Deyou

doi:10.1007/s11665-021-06479-5

Cited by 3 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, lowering the grain boundary energy by the recovery treatment enhanced the corrosion resistance. The sharpened grain boundaries in a more stable state also increase hardness by more effectively blocking the movement of dislocations across the grain boundaries and thus elevated wear resistance, [36,[45][46][47][48][49][50][51][52][53][54] which has also been demonstrated by the results reported in this article. It should be pointed out that if the annealing temperature is sufficiently high, resulting in recrystallization and grain growth, the mechanical strength will be reduced.…”

Section: Microstructural Variation and Its Influence On Properties Of...supporting

confidence: 75%

“…The corrosion resistance of the Al layer is mainly attributed to its passive film, which blocks the corrosive agents to reach the metal. Nanocrystallization of the Al layer, achieved by hammering and subsequent recovery treatment, promotes atomic diffusion and enhances the so-called oxide pinning or pegging effect, [45] thus improving the protectiveness of the passive film including its adherence to the substrate. [46] Besides, the recovery treatment reduced the residual strain, which decreased the anodic degree of the hammered or deformed Al layer, which further benefits its resistance to corrosion.…”

Section: Electrochemical Behaviormentioning

confidence: 99%

See 1 more Smart Citation

A Simple Surface Treatment for Mg to Gain Enhanced Resistance to Corrosion and Corrosive Wear by Hammering Al Powder‐Covered Mg Substrate

Tang

et al. 2022

Adv Materials Inter

View full text Add to dashboard Cite

rendering it widely utilized for cellular phones and notebook computers in recent years. The earth crust contains 2.1% mass of Mg, [5] making this abundant metal available for a wide range of applications. However, magnesium has shortcomings, including high chemical reactivity or low resistance to corrosion and others such as wear and creep. [6] Significant efforts have been made to modify Mg-based alloys by alloying appropriate elements [7] or modify the surface of Mg or Mg alloys [6] for improved performance. Surface modification of Mg or Mg alloys is an economical and effective approach for enhanced resistance to corrosion and wear.There are many processes for coating a more durable layer on the outmost surface of a base material for desired properties. The coating materials can be metallic, ceramic, or polymeric, depending on the application. For Mg or Mg alloys, different surface methods have been studied and used, e.g., pack vacuum diffusion, [8,9] salt bath, [10,11] cold/ thermal spray, [12][13][14] laser processing, [15,16] chemical vapor deposition, [17,18] and physical vapor deposition, [19,20] electrodeposition, [21,22] and chemical conversion coating, [23,24] etc. These techniques can improve the corrosion resistance of Mg to different extents. However, some of the techniques need costly equipment or involve complicated processes. For example, vacuum chamber and pumping system as well as gas lines are required for physical vapor deposition. For less expensive techniques such as electrodeposition, one needs to deal with electrolyte preparation, wet process, electrolyte recycling, etc. For chemical conversion coating process, which is also a wet process, different factors need to be handled, e.g., chemical solution preparation, waste solution recycling, and control of various process parameters such as temperature, pressure, and solution ion concentrations. [24] This work shows a simple approach to increase the resistance of Mg to corrosion and corrosive wear by generating a nanocrystalline aluminum layer on Mg surface, which is achieved by repeated punching or hammering an Al powdercovered Mg substrate. Al is also a light metal with excellent passivation capability. A thin Al layer on the Mg substrate can significantly increase its resistance to corrosion and corrosive Mg is abundant in the earth crust and very attractive as a base metal of lightweight alloys for the transportation industry due to its high strengthto-weight ratio. However, Mg is prone to corrosion, which largely limits its widespread applications. Here, a very simple surface treatment method is demonstrated for enhanced resistance to corrosion and corrosive wear by hammering Al powder-covered surface of Mg with subsequent recovery treatment. Such treated surface is examined with X-ray diffraction technique for information on phases, nanocrystallization, thickness, and coverage of the Al layer. Structure of the Al layer and lattice imperfections are analyzed with transmission electron microscopy. Electrochemical behavior, corrosion, and...

show abstract

Section: Microstructural Variation and Its Influence On Properties Of...supporting

confidence: 75%

Section: Electrochemical Behaviormentioning

confidence: 99%

A Simple Surface Treatment for Mg to Gain Enhanced Resistance to Corrosion and Corrosive Wear by Hammering Al Powder‐Covered Mg Substrate

Tang

et al. 2022

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

A review on wear resistance of Mg alloys: the influence of common rare earth alloying elements and general modification techniques

Wang,

Liu,

Huang

et al. 2024

Materials Science and Technology

View full text Add to dashboard Cite

The poor wear resistance of magnesium (Mg) alloys has hindered their widespread application. Therefore, researchers have focused on how the addition of rare earth (RE) elements to Mg alloys and the modification methods affect their tribological behaviour. This overview reflects the research on the wear of Mg alloys. Several treatments and modification methods have been utilised to improve the wear behaviour of Mg alloys, including cryogenic treatment, deep cryogenic treatment, precipitation hardening, surface mechanical attrition treatment (SMAT) and laser surface melting. Accordingly, except for SMAT, the other processes positively affected the wear resistance. Therefore, adding RE elements to Mg alloys and applying modification processes improve the wear resistance, especially at high temperatures.

show abstract

The Influence of Nano-Silicon Carbide on the Properties of Aluminum Alloy Under Salt Dry–Wet Alternations

Song,

Liu,

Chen

et al. 2024

Coatings

View full text Add to dashboard Cite

In this study, the influence of silicon carbide on an aluminum alloy’s yield tensile strength, ultimate tensile strength, compressive strength, tensile toughness and impact toughness were investigated. Meanwhile, the aluminum alloy specimens were exposed to the dry–wet alternations with a 3% NaCl solution or 3% Na2SO4 solution. Scanning electron microscope (SEM) photos and scanning electron microscopy energy spectra (SEM-EDS) were obtained. The results indicate that the silicon carbide with a mass ratio of 0%~8% of the total mass of the aluminum alloy can increase the yield tensile strength, the ultimate tensile strength, and the compressive strength by rates of 0%~30.4%, 0%~14.1% and 0%~13.1%. However, when the mass ratio of the silicon carbide increased from 8% to 10%, the yield tensile strength, the ultimate tensile strength and the compressive strength decreased by rates of 0%~3.2%, 0%~2.6% and 0%~0.43%. The tensile toughness and the impact toughness decreased when silicon carbide was added, with reduction rates of 0%~15.3% and 0%~12.8%. The NaCl dry–wet alternations led to decreases in the yield tensile strength, the ultimate tensile strength, the compressive strength, the tensile toughness and the impact toughness by rates of 0%~7.3%, 0%~6.7%, 0%~13.9%, 0%~12.7% and 0%~11.2%, respectively. After the Na2SO4 dry–wet alternations, the corresponding decreasing rates were 0%~5.1%, 0%~5.4%, 0%~1.73%, 0%~11.4% and 0%~9.7%. The addition of silicon carbide resulted in a decrease in the effect on the mechanical strength by the NaCl and Na2SO4 dry–wet alternations. The elements carbon, oxygen, magnesium, aluminum and silicon were observed in the aluminum alloy. The structures of the aluminum alloy with 8% silicon carbide were the highest.

show abstract

The Yttrium-Incorporated Aluminizing of Mg-3%Al Alloy for Improved Tribological and Corrosion Properties

Cited by 3 publications

References 49 publications

A Simple Surface Treatment for Mg to Gain Enhanced Resistance to Corrosion and Corrosive Wear by Hammering Al Powder‐Covered Mg Substrate

A Simple Surface Treatment for Mg to Gain Enhanced Resistance to Corrosion and Corrosive Wear by Hammering Al Powder‐Covered Mg Substrate

A review on wear resistance of Mg alloys: the influence of common rare earth alloying elements and general modification techniques

The Influence of Nano-Silicon Carbide on the Properties of Aluminum Alloy Under Salt Dry–Wet Alternations

Contact Info

Product

Resources

About