Corrosion Behavior of a Mg Alloy AE42 Subjected to Friction Stir Processing

CORROSION ◽  
10.5006/0750 ◽  
2013 ◽  
Vol 69 (2) ◽  
pp. 122-135 ◽  
Author(s):  
H.S. Arora ◽  
H. Singh ◽  
B.K. Dhindaw
Keyword(s):  
Corrosion Behavior ◽  
Friction Stir Processing ◽  
Mg Alloy ◽  
Friction Stir

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

scholarly journals Micro-nano structure and characterization in the nugget zone of Al-Cu-Mg alloy under friction stir processing

2020 ◽  
Vol 57 (01) ◽  
pp. 27-31
Author(s):  
Siyu Sun ◽  
Peng Liu ◽  
Lanwen Chen ◽  
Meiqing Cao ◽  
Jiaying Hu ◽  
...  
Keyword(s):  
Friction Stir Processing ◽  
Mg Alloy ◽  
Nugget Zone ◽  
Nano Structure ◽  
Friction Stir

scholarly journals Effect of Friction Stir Processing on Microstructural, Mechanical, and Corrosion Properties of Al-Si12 Additive Manufactured Components

Metals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 85 ◽  
Author(s):  
Ghazal Moeini ◽  
Seyed Vahid Sajadifar ◽  
Tom Engler ◽  
Ben Heider ◽  
Thomas Niendorf ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Corrosion Behavior ◽  
Friction Stir Processing ◽  
Micro Hardness ◽  
Corrosion Properties ◽  
Microstructural Investigation ◽  
Friction Stir ◽  
Size Refinement ◽  
Hardness Values

Additive manufacturing (AM) is an advanced manufacturing process that provides the opportunity to build geometrically complex and highly individualized lightweight structures. Despite its many advantages, additively manufactured components suffer from poor surface quality. To locally improve the surface quality and homogenize the microstructure, friction stir processing (FSP) technique was applied on Al-Si12 components produced by selective laser melting (SLM) using two different working media. The effect of FSP on the microstructural evolution, mechanical properties, and corrosion resistance of SLM samples was investigated. Microstructural investigation showed a considerable grain refinement in the friction stirred area, which is due to the severe plastic deformation and dynamic recrystallization of the material in the stir zone. Micro-hardness measurements revealed that the micro-hardness values of samples treated using FSP are much lower compared to SLM components in the as-built condition. This reduction of hardness values in samples treated with FSP can be explained by the dissolution of the very fine Si-phase network, being characteristic for SLM samples, during FSP. Surface topography also demonstrated that the FSP results in the reduction of surface roughness and increases the homogeneity of the SLM microstructure. Decreased surface roughness and grain size refinement in combination with the dissolved Si-phase network of the FSP treated material result in considerable changes in corrosion behavior. This work addresses the corrosion properties of surface treated additive manufactured Al-Si12 by establishing adequate microstructure-property relationships. The corrosion behavior of SLM-manufactured Al-Si12 alloys is shown to be improved by FSP-modification of the surfaces.

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.

Machining characteristics of fine grained AZ91 Mg alloy processed by friction stir processing

2017 ◽  
Vol 27 (4) ◽  
pp. 804-811 ◽  
Author(s):  
G.V.V. SURYA KIRAN ◽  
K. HARI KRISHNA ◽  
Sk. SAMEER ◽  
M. BHARGAVI ◽  
B. SANTOSH KUMAR ◽  
...  
Keyword(s):  
Friction Stir Processing ◽  
Mg Alloy ◽  
Friction Stir ◽  
Fine Grained ◽  
Machining Characteristics

Role of Friction Stir Processing Parameters on the Microstructure and Hardness of ZE41 Mg Alloy: A Taguchi Approach

2019 ◽  
Vol 8 (1) ◽  
pp. 20180145
Author(s):  
M. Venkataiah ◽  
T. Anup Kumar ◽  
K. Venkata Rao ◽  
S. Anand Kumar ◽  
B. Ratna Sunil
Keyword(s):  
Friction Stir Processing ◽  
Processing Parameters ◽  
Mg Alloy ◽  
Taguchi Approach ◽  
Friction Stir
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