Effect of grain orientation on friction and wear behavior of AZ91 magnesium alloy

AbstractIn this study, conventional WC-12Co cermet coatings were deposited on AZ91 magnesium alloy using High Velocity Oxy-Fuel spray method. The effects of different coating thicknesses (60 and 120 µm) and wear loads (20 and 30 N) on tribological properties of AZ91 magnesium alloy coated with WC-12Co were investigated. Structural, mechanical and tribological properties of WC-12Co coatings were analyzed by means of X-ray diffractometer, scanning electron microscope, micro-hardness tester and pin-on-disc tribotester. It was observed that WC-12Co coating is an effective method for improving the wear behavior of AZ91 magnesium alloy.

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Effects of heat treatment on the wear behavior of surfacing AZ91 magnesium alloy

Journal of Materials Research ◽

10.1557/jmr.2017.186 ◽

2017 ◽

Vol 32 (11) ◽

pp. 2161-2168 ◽

Cited By ~ 9

Author(s):

Qingqiang Chen ◽

Kaiyue Li ◽

Yuyang Liu ◽

Zhihao Zhao ◽

Kai Tao ◽

...

Keyword(s):

Heat Treatment ◽

Magnesium Alloy ◽

Wear Behavior ◽

Az91 Magnesium Alloy ◽

Az91 Magnesium ◽

Image Position

Abstract

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Effect of laser surface melting on friction and wear behavior of AM50 magnesium alloy

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2007.11.023 ◽

2008 ◽

Vol 202 (14) ◽

pp. 3175-3179 ◽

Cited By ~ 49

Author(s):

Yongkang Zhang ◽

Jufang Chen ◽

Weining Lei ◽

Renjun Xv

Keyword(s):

Magnesium Alloy ◽

Friction And Wear ◽

Wear Behavior ◽

Surface Melting ◽

Laser Surface ◽

Laser Surface Melting ◽

Friction And Wear Behavior

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The microstructure, hardness and friction and wear behavior of AM60B magnesium alloy by friction stir processing

Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence - RICAI 2019 ◽

10.1145/3366194.3366207 ◽

2019 ◽

Author(s):

Nannan Wang ◽

Lijie Cao ◽

Kai Yin

Keyword(s):

Magnesium Alloy ◽

Friction Stir Processing ◽

Friction And Wear ◽

Wear Behavior ◽

Friction And Wear Behavior ◽

Friction Stir

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Effect of Precipitates on Mechanical and Tribological Performance of AZ91 Magnesium Alloy–Steel Couple

Journal of Tribology ◽

10.1115/1.4029248 ◽

2015 ◽

Vol 137 (2) ◽

Cited By ~ 9

Author(s):

Deepak Kumar ◽

Jayant Jain ◽

Tulsi Bisht ◽

Anuz Zindal

Keyword(s):

Magnesium Alloy ◽

Wear Behavior ◽

Tribological Performance ◽

Az91 Alloy ◽

Az91 Magnesium Alloy ◽

Mechanical And Tribological Properties ◽

Mg17al12 Phase ◽

Az91 Magnesium ◽

Steel Aisi ◽

Pin On Disk

The present work involves the study of the effect of precipitates on mechanical and tribological properties of AZ91 magnesium alloy. Optical microscopy, scanning electron microscopy (SEM), and nanoindentation were used to characterize the microstructures and mechanical properties of the alloy. In addition, the wear behavior of the alloy was deduced using a pin-on disk tribological configuration under unidirectional sliding against steel (AISI 250). The elastic modulus of AZ91 alloy was found to vary significantly with changing precipitation state. The tribological evaluations showed that the specific wear-rate of solutionized sample is lowest as compared to the aged samples. This was attributed to the absence of γ-Mg17Al12 phase. Examination of worn surfaces suggested that microploughing coupled with the adhesive mode of wear is the main wear mechanism in the aged samples.

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Influence of Grain Orientation on Friction and Wear Behavior in Quasicrystalline Alloys

MRS Proceedings ◽

10.1557/proc-643-k8.1 ◽

2000 ◽

Vol 643 ◽

Author(s):

Alan Duckham ◽

Dan Shechtman ◽

Benjamin Grushko

Keyword(s):

Grain Orientation ◽

Friction And Wear ◽

Wear Behavior ◽

Icosahedral Phase ◽

Friction And Wear Behavior ◽

Decagonal Phase ◽

Pin On Disc ◽

Alnico Alloy ◽

Electron Back Scattered Diffraction ◽

Wear Tests

AbstractThe influence of grain orientation on the friction and wear behavior of single-phase quasicrystalline alloys is investigated. Pin-on-disc wear tests and friction coefficient measurements have been performed on bulk samples of icosahedral phase AlPdMn and decagonal phase AlNiCo alloys. Wear behavior has been evaluated by optical microscopy, scanning electron microscopy (SEM) and electron back-scattered diffraction (EBSD). Coefficient of friction values of the decagonal AlNiCo alloy are found to be widely scattered (between 0.03 and 0.55) compared to the far more consistent values of the icosahedral alloys. This is explained by considering the significant variation in wear behavior that is observed between different – sometimes adjacent – oriented grains in the decagonal specimens.

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