The effects of friction stir processing on the wear behavior of cast AZ91C magnesium alloy

2018 ◽  
Vol 109 (3) ◽  
pp. 241-249
Author(s):  
Behzad Hassani ◽  
Fathallah Karimzadeh ◽  
Mohammad Hossein Enayati ◽  
Fabian Mutschlechner ◽  
Rudolf Vallant ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Wear Behavior ◽  
Friction Stir ◽  
Az91c Magnesium Alloy

EFFECT OF FRICTION STIR PROCESSING ON CORROSION BEHAVIOR OF CAST AZ91C MAGNESIUM ALLOY

2019 ◽  
Vol 26 (06) ◽  
pp. 1850213 ◽  
Author(s):  
BEHZAD HASSANI ◽  
RUDOLF VALLANT ◽  
FATHALLAH KARIMZADEH ◽  
MOHAMMAD HOSSEIN ENAYATI ◽  
SOHEIL SABOONI ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Corrosion Behavior ◽  
Friction Stir Processing ◽  
Potentiodynamic Polarization ◽  
Passive Layer ◽  
Friction Stir ◽  
T6 Heat Treatment ◽  
Az91c Magnesium Alloy

The corrosion behavior of as-cast AZ91C magnesium alloy was studied by performing friction stir processing (FSP) and FSP followed by solution annealing and then aging. Phase analysis, microstructural characterization, potentiodynamic polarization test and immersion tests were carried out to relate the corrosion behavior to the samples microstructure. The microstructural observations revealed the breakage and dissolution of coarse dendritic microstructure as well as the coarse secondary [Formula: see text]-Mg[Formula: see text]Al[Formula: see text] phase which resulted in a homogenized and fine grained microstructure (15[Formula: see text][Formula: see text]m). T6 heat treatment resulted in an excessive growth and dispersion of the secondary phases in the microstructure of FSP zone. The potentiodynamic polarization and immersion tests proved a significant effect of both FSP and FSP followed by T6 on increasing the corrosion resistance of the cast AZ91C magnesium alloy. Improve in corrosion resistance after FSP was attributed to grain refinement and elimination of segregations and casting defects which makes more adhesive passive layer. Increase in volume fraction of precipitations after T6 heat treatment is determined to be the main factor which stabilizes the passive layer at different polarization values and is considered to be responsible for increasing the corrosion resistance.

EFFECT OF FRICTION STIR PROCESSING (FSP) ON THE WEAR BEHAVIOR OF CAST AS21A MAGNESIUM ALLOY

2020 ◽  
pp. 2050037
Author(s):  
SUMIT JOSHI ◽  
RAMESH CHANDRA SINGH ◽  
RAJIV CHAUDHARY
Keyword(s):  
Surface Modification ◽  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Surface Engineering ◽  
Wear Behavior ◽  
Normal Load ◽  
Surface Characteristics ◽  
Friction Stir ◽  
Subsequent Investigation ◽  
Pin On Disc

The contemporary trend of cost-saving is the primary motive while studying the relative motion between the material surfaces. Therefore, exceptional surface characteristics are the most desirable features for any material. The rapid emerging surface modification phenomena like Friction Stir Processing (FSP) have proved its potential in the surface engineering applications. In this study, Magnesium–Aluminum–Silicon (Mg–Al–Si)-based AS21A magnesium alloy was examined for the wear characterization in respect with the cast and Friction Stir Processed (FSPed) conditions. FSP, performed at an optimized set of parameters, was utilized to attain the surface modification in the investigated material. In the wear study, cast and FSPed conditions of AS21A specimens were examined on Pin-on-disc apparatus with typical load values ranging from 10–40[Formula: see text]N. The subsequent investigation involves characterization of worn surfaces through Scanning Electron Microscope (SEM) micrographs, and Energy Dispersive X-Ray Spectrometer (EDS) to understand the accountable wear mechanism. It was found that the FSPed AS21A samples exhibited noteworthy improvement in the wear characteristics at all assessment conditions. FSPed sample showed overall 17% enhancement in the specific wear rate. Also, with an increase in normal load, around 53–55% reduction was observed in the Coefficient of Friction (COF) value. It was established that the morphology of Mg2Si precipitates had an active contribution in the wear behavior of cast and FSPed AS21A samples. The notable mechanisms found responsible for the wear of samples were adhesion, abrasion, oxidation, delamination and plastic deformation.

scholarly journals Fabrication of Recycled Carbon Fiber Reinforced Magnesium Alloy Composite by Friction Stir Processing Using 3-Flat Pin Tool and Its Fatigue Properties

2018 ◽  
Vol 59 (3) ◽  
pp. 475-481 ◽  
Author(s):  
Angga Afrinaldi ◽  
Toshifumi Kakiuchi ◽  
Shohei Nakagawa ◽  
Hiroshi Moritomi ◽  
Kazuhiro Kumabe ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Carbon Fiber ◽  
Friction Stir Processing ◽  
Fatigue Properties ◽  
Alloy Composite ◽  
Fiber Reinforced ◽  
Friction Stir ◽  
Carbon Fiber Reinforced

Friction Stir Processing of Magnesium Alloy with Spiral Tool Path Strategy

2020 ◽  
pp. 197-205
Author(s):  
Abhishek Kumar ◽  
Aarush Sood ◽  
Nikhil Gotawala ◽  
Sushil Mishra ◽  
Amber Shrivastava
Keyword(s):  
Magnesium Alloy ◽  
Friction Stir Processing ◽  
Tool Path ◽  
Friction Stir ◽  
Spiral Tool Path

Microstructure, hardness and wear behavior of AZ31 Mg alloy – fly ash composites produced by friction stir processing

2017 ◽  
Vol 4 (6) ◽  
pp. 6671-6677 ◽  
Author(s):  
V.V. Kondaiah ◽  
P. Pavanteja ◽  
P. Afzal Khan ◽  
S. Anannd Kumar ◽  
Ravikumar Dumpala ◽  
...  
Keyword(s):  
Fly Ash ◽  
Friction Stir Processing ◽  
Wear Behavior ◽  
Mg Alloy ◽  
Friction Stir ◽  
Az31 Mg Alloy
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