Laser cladding of Mg65Cu25Y10/SiC amorphous composite coatings on AZ91D magnesium alloy for improvement of wear resistance

To improve the wear property of magnesium alloys, Zr-based amorphous composite coatings have been fabricated on AZ91D magnesium alloy by laser cladding using mixed powders Zr55Al10Ni5Cu30/SiC. The microstructure of the coating was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The wear resistance of the coatings was evaluated under dry sliding wear test condition at room temperature. The results show that the coatings mainly consist of amorphous and different crystalline phases. The coatings exhibit excellent wear resistance due to the recombination action of amorphous and different crystalline phases. The main wear mechanism of the coatings and the AZ91D sample are different, the former is abrasive wear and the latter is adhesive wear.

Download Full-text

Laser Cladding of Zr55Al10Ni5Cu30/SiC Amorphous Composite Coatings on AZ91D Magnesium Alloy for Improvement of Corrosion Resistance

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.179-180.757 ◽

2011 ◽

Vol 179-180 ◽

pp. 757-761 ◽

Cited By ~ 4

Author(s):

Kai Jin Huang ◽

Hou Guang Liu ◽

Chang Rong Zhou

Keyword(s):

Corrosion Resistance ◽

Magnesium Alloy ◽

Laser Cladding ◽

Composite Coatings ◽

Corrosion Property ◽

Nacl Solution ◽

X Ray Diffraction ◽

X Ray ◽

Good Corrosion Resistance ◽

Az91d Magnesium Alloy

To improve the corrosion property of magnesium alloys, Zr-based amorphous composite coatings have been fabricated on AZ91D magnesium alloy by laser cladding using mixed powders Zr55Al10Ni5Cu30/SiC. The microstructure of the coating was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion resistance of the coatings was tested in 3.5wt.% NaCl solution. The results show that the coatings mainly consist of amorphous and different crystalline phases. The coatings compared with AZ91D magnesium alloy exhibit good corrosion resistance because of the presence of the amorphous phase in the coatings.

Download Full-text

Wear and Corrosion Resistance of Al0.5CoCrCuFeNi High-Entropy Alloy Coating Deposited on AZ91D Magnesium Alloy by Laser Cladding

Entropy ◽

10.3390/e20120915 ◽

2018 ◽

Vol 20 (12) ◽

pp. 915 ◽

Cited By ~ 4

Author(s):

Kaijin Huang ◽

Lin Chen ◽

Xin Lin ◽

Haisong Huang ◽

Shihao Tang ◽

...

Keyword(s):

Wear Resistance ◽

Corrosion Resistance ◽

Magnesium Alloy ◽

Laser Cladding ◽

Alloy Coating ◽

High Entropy Alloy ◽

High Entropy ◽

Az91d Magnesium Alloy ◽

Wear And Corrosion ◽

Wear And Corrosion Resistance

In order to improve the wear and corrosion resistance of an AZ91D magnesium alloy substrate, an Al0.5CoCrCuFeNi high-entropy alloy coating was successfully prepared on an AZ91D magnesium alloy surface by laser cladding using mixed elemental powders. Optical microscopy (OM), scanning electron microscopy (SEM), and X-ray diffraction were used to characterize the microstructure of the coating. The wear resistance and corrosion resistance of the coating were evaluated by dry sliding wear and potentiodynamic polarization curve test methods, respectively. The results show that the coating was composed of a simple FCC solid solution phase with a microhardness about 3.7 times higher than that of the AZ91D matrix and even higher than that of the same high-entropy alloy prepared by an arc melting method. The coating had better wear resistance than the AZ91D matrix, and the wear rate was about 2.5 times lower than that of the AZ91D matrix. Moreover, the main wear mechanisms of the coating and the AZ91D matrix were different. The former was abrasive wear and the latter was adhesive wear. The corrosion resistance of the coating was also better than that of the AZ91D matrix because the corrosion potential of the former was more positive and the corrosion current was smaller.

Download Full-text

Laser Cladding of Mg65Cu25Y10/SiC Amorphous Composite Coatings on AZ91D Magnesium Alloy for Improvement of Corrosion Resistance

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.143-144.758 ◽

2010 ◽

Vol 143-144 ◽

pp. 758-762

Author(s):

Kai Jin Huang ◽

Hou Guang Liu ◽

Chang Rong Zhou

Keyword(s):

Corrosion Resistance ◽

Magnesium Alloy ◽

Laser Cladding ◽

Composite Coatings ◽

Corrosion Property ◽

Nacl Solution ◽

X Ray Diffraction ◽

X Ray ◽

Good Corrosion Resistance ◽

Az91d Magnesium Alloy

To improve the corrosion property of magnesium alloys, Mg-based amorphous composite coatings have been fabricated on AZ91D magnesium alloy by laser cladding using mixed powders Mg65Cu25Y10/SiC. The microstructure of the coating was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion resistance of the coatings was tested in 3.5wt.% NaCl solution. The results show that the coatings mainly consist of amorphous and different crystalline phases. The coatings compared to AZ91D magnesium alloy exhibit good corrosion resistance because of the presence of the amorphous phase in the coatings.

Download Full-text

Evaluation of the Wear Resistance and Corrosion Behavior of Laser Cladding Al/SiC Metal Matrix Composite Coatings on ZE41 Magnesium Alloy

Coatings ◽

10.3390/coatings11060639 ◽

2021 ◽

Vol 11 (6) ◽

pp. 639

Author(s):

Ainhoa Riquelme ◽

Pilar Rodrigo ◽

María Dolores Escalera-Rodriguez ◽

Joaquín Rams

Keyword(s):

Wear Resistance ◽

Magnesium Alloy ◽

Corrosion Behavior ◽

Laser Cladding ◽

Wear Behavior ◽

Composite Coatings ◽

Aluminum Matrix ◽

Aluminum Matrix Composites ◽

Wear Rates ◽

Pin On Disc

Aluminum matrix composites reinforced with SiC particles (SiCp) were deposited on ZE41 magnesium substrates by laser cladding in order to improve their tribological performance. Silicon and titanium were added to the matrix in order to avoid Al-SiC reactivity. The addition of these elements to avoid Al4C3 formation during the laser cladding fabrication was successfully explored in previous research, but the effect of these elements on the wear behavior and the corrosion resistance of these coatings has not been studied. During the fabrication process, there is dilution with the substrate that forms an Al-Mg matrix, which has an influence on the wear and corrosion behavior. Electrochemical polarization and impedance measurements in a 3.5% NaCl solution and the dry sliding conditions on a pin-on-disc tribometer were used to evaluate the different compositions of Al/SiCp coatings on the ZE41 magnesium alloy and uncoated ZE41. All of the composite coatings had lower wear rates than the substrate. However, the coatings showed worse corrosion behavior than the ZE41 substrate, although the addition of Si or Ti improves the corrosion behavior and the wear resistance.

Download Full-text

Laser Cladding of Zr52.5Cu17.9Ni14.6Al10Ti5/TiC Composite Coating on AZ91D Magnesium Alloy for Improvement of Wear Resistance

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.66.206 ◽

2009 ◽

Vol 66 ◽

pp. 206-209

Author(s):

Kai Jin Huang ◽

Cun Shan Wang ◽

Chang Sheng Xie

Keyword(s):

Wear Resistance ◽

Magnesium Alloy ◽

Composite Coating ◽

Laser Cladding ◽

Wear Test ◽

Dry Sliding Wear ◽

Wear Property ◽

Crystalline Phases ◽

Az91d Magnesium Alloy

To improve the wear property of magnesium alloy, wear-resistant TiC and in-situ ZrC co-reinforced Zr-based amorphous composite coating has been fabricated on AZ91D magnesium alloy by laser cladding using mixed powders of Zr52.5Cu17.9Ni14.6Al10Ti5-TiC. The microstructure of the coating was characterized by XRD and SEM techniques. The wear resistance of the coating was evaluated under dry sliding wear test condition. The results show that the coating mainly consists of amorphous and different crystalline phases. The coating exhibits excellent wear resistance due to the recombination action of amorphous and crystalline phases, and the wear resistance improves further with the increase of TiC content. The main wear mechanism of the coating and the AZ91D sample are different, the former is abrasive wear and the latter is adhesive wear.

Download Full-text

A Study on the Ni-P-SiC Coating of AZ91D Magnesium Alloy

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.43.510 ◽

2010 ◽

Vol 43 ◽

pp. 510-513 ◽

Cited By ~ 2

Author(s):

Xiao Lan Ge ◽

Bing Zeng ◽

Zhi Chao Chen ◽

Duo Wei ◽

Cai Jun Wang

Keyword(s):

Wear Resistance ◽

Magnesium Alloy ◽

Phase Particle ◽

Composite Coatings ◽

Second Phase ◽

Az91d Magnesium Alloy ◽

Composite Plating ◽

Before And After ◽

Plating Solution ◽

Better Than

An Investigation on the Ni-P-SiCp Electroless Composite Plating of AZ91D magnesium alloy was investigated.The morphology and phase structrue of the electroless composite plating were investigated by means of SEM and XRD.The effect of concentration of the second phase particle in electroless plating solution on wear resistance of the Ni-P-SiCp composite coating were studied.The properties of the coatings before and after heat treatment were compared.The result shows that the obtained coatings were flat and compact.X-ray diffractometry indicated that the coatings were amorphous,but crystallization would happen in the process of heat treatment.From the lost weight of the coatings it can be seen that the wear resistance of composite coatings was better than that of Ni-P coatings .

Download Full-text

Microstructure and properties of in-situ synthesized ZrC-Al3Zr reinforced composite coating on AZ91D magnesium alloy by laser cladding

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2017.12.007 ◽

2018 ◽

Vol 334 ◽

pp. 471-478 ◽

Cited By ~ 14

Author(s):

Yu Guo ◽

Yingqiao Zhang ◽

Zhiyong Li ◽

Shouzheng Wei ◽

Tao Zhang ◽

...

Keyword(s):

Magnesium Alloy ◽

Composite Coating ◽

Laser Cladding ◽

Microstructure And Properties ◽

Az91d Magnesium Alloy ◽

Reinforced Composite

Download Full-text

Laser Cladding of Ni-Co-W Composite Coating on Stainless Steel to Enhance Wear Resistance

Materials Science ◽

10.5755/j02.ms.28686 ◽

2021 ◽

Author(s):

Linlin ZHANG ◽

Dawei ZHANG

Keyword(s):

Stainless Steel ◽

Wear Resistance ◽

Composite Coating ◽

Laser Cladding ◽

Composite Coatings ◽

Eutectic Structure ◽

Wear Properties ◽

Fine Grained ◽

Noticeable Improvement ◽

Enhance Wear Resistance

Ni-Co-W composite coatings modified by different contents of Co-based alloy powder in the Ni-based alloy with 35 wt.% WC (Ni35WC) were deposited on stainless steel by laser cladding. The influence of compositional and microstructural modification on the wear properties has been comparatively investigated by XRD, SEM, and EDS techniques. It was found that the austenite dendrites in the modified coating adding 50 wt.% Co-based alloy were refined and a lot of Cr23C6 or M23(C, B)6 compounds with fine lamellar feature were formed around austenitic grain boundaries or in the intergranular regions. The contribution of element Co to the modification of Ni35WC coating is that it cannot only promote the formation of more hard compounds to refine austenite grains, but also refine the size of precipitates, and change the phase type of eutectic structure as a result of disappeared Cr boride brittle phases. A noticeable improvement in wear resistance is obtained in the Ni35WC coating with 50 wt.% Co-based alloy, which makes the wear rate decreased by about 53 % and 30% by comparison to that of the substrate and the Ni35WC coating, respectively. It is suggested that the improvement is closely related to the composite coating being strengthened owing to the increase of coating hardness, formation of a fine-grained microstructure caused by Co, and fine hard precipitate phases in the eutectic structure.

Download Full-text