Results 11 to 20 of about 44,667 (180)

Dissolution mechanism and kinetics of β(Mg17Al12) phases in AZ91 magnesium alloy

Journal of Magnesium and Alloys
In this study, the phase transformations, crystallization kinetics and dissolution mechanism of β phase (Mg17Al12) in magnesium alloy AZ91 were investigated by optical microscopy, X-ray diffraction, differential scanning calorimetry and differential ...
Sultan Alomairy
doaj   +2 more sources

Heat treatment and kinetics of precipitation of β-Mg17Al12 phase in AZ91 alloy

Results in Physics, 2018
This study investigated the effect of aging on the precipitation and kinetics of second phase Mg17Al12 in AZ91 magnesium alloy (Mg-9 wt% Al-1 wt% Zn), using X-ray diffraction, microhardness measurements and differential scanning calorimetric analysis ...
M. Fatmi, A. Djemli, A. Ouali, T. Chihi, M.A. Ghebouli, H. Belhouchet   +5 more
doaj   +2 more sources

Corrosion and Materials Degradation in Electrochemical Energy Storage and Conversion Devices

ChemElectroChem, Volume 10, Issue 11, June 1, 2023., 2023
This review provides recent updates on corrosion and degradation issues and their mitigation approaches in electrochemical energy storage and conversion devices, primarily PEM fuel cells, metal‐ion and metal‐air batteries and supercapacitors. Abstract Research and development on electrochemical energy storage and conversion (EESC) devices, viz.
Viswanathan S. Saji
wiley   +1 more source

Achieving Superplastic Elongations in an AZ80 Magnesium Alloy Processed by High‐Pressure Torsion

Advanced Engineering Materials, Volume 24, Issue 9, September 2022., 2022
Microstructure in the AZ80 disk sample processed by 10 turns of high‐pressure torsion (HPT) shows precipitates (Mg17 Al12) at grain boundaries and triple junctions (left image), and energy‐dispersive X‐ray spectroscopy (EDS) line scanning (right) demonstrates the changes in chemical composition of the matrix and precipitates.
Saad A. Alsubaie, Piotr Bazarnik, Yi Huang, Malgorzata Lewandowska, Terence G. Langdon   +4 more
wiley   +1 more source

Catalysis in Solid Hydrogen Storage: Recent Advances, Challenges, and Perspectives

Energy Technology, Volume 10, Issue 9, September 2022., 2022
Catalysis is core to all steps of solid‐state hydrogen storage. Catalysis is at the core of previous energy transition. It has enabled the use of oil and natural gas as our primary energy sources in unprecedented ways and led to feedstocks enabling exceptionally high living standards in human history.
Muhammad Saad Salman, Chulaluck Pratthana, Qiwen Lai, Ting Wang, Nigel Rambhujun, Kshitij Srivastava, Kondo-Francois Aguey-Zinsou   +6 more
wiley   +1 more source

Immersion Testing of Variously Coated Ceramic Foam Filters in an AZ91 Magnesium Melt

Advanced Engineering Materials, Volume 24, Issue 2, February 2022., 2022
The applicability of ceramic foam filters in magnesium alloy melts is investigated through immersion testing in AZ91 for up to 60 min. Filters and metal samples are evaluated by scanning electron microscopy, focusing on interface reactions and inclusions. Al2O3‐C‐, Al2O3‐, and MgAlON‐coated filters are shown to be suitable for magnesium melt filtration,
Alina Schramm, Volker Recksiek, Steffen Dudczig, Christiane Scharf, Christos G. Aneziris   +4 more
wiley   +1 more source

Impact of processing parameters in plasma electrolytic oxidation on corrosion resistance of magnesium alloy type AZ91

Engineering Reports, Volume 4, Issue 2, February 2022., 2022
This study aims to investigate the effect of the processing parameters in plasma electrolytic oxidation (PEO) on the corrosion resistance of magnesium alloy type AZ91. The PEO coatings were prepared on the samples using alkaline‐based electrolyte. Both unipolar and bipolar, different frequencies and duty cycles were applied.
Talal A. Aljohani, Sami Aljadaan, Meteb T. Bin Rubayan, Fuad Khoshnaw   +3 more
wiley   +1 more source

Studies on Corrosion Behavior of Mg‐Al‐Zn‐RE Cast Alloy with Powder‐Coated Al and CED Mg by Salt Spray Test, Immersion Test, and Electrochemical Test

International Journal of Chemical Engineering, Volume 2022, Issue 1, 2022., 2022
Cathodic electrodeposition (CED) was used to coat the cast magnesium alloy Mg‐9Al‐1Zn‐xRE with aluminum powder and epoxy. Immersion and salt spray tests (ASTM B117) at room temperature for a total of 240 hours have been performed to assess the corrosion performances of AZ91D magnesium alloy.
R. Krishnan, S. Manivannan, Praveen Bhai Patel, Pravin P Patil, R. Venkatesh, Natrayan L, Subash Thanappan, G.L. Balaji   +7 more
wiley   +1 more source

Effect of Heat‐Treating on Microstructure and High Cycle Bending Fatigue Behavior of AZ91 and AZE911 Magnesium Alloys

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
This article investigates the influences of heat‐treating on the microstructures and the high cycle fatigue (HCF) properties of AZ91 and AZE911 (AZ91 + 1%RE) magnesium alloys. For such an objective, AZ91 and AZE911 alloys were used after solution treatment at 415°C for 5 hours aged at 215°C for 3 hours and at 215°C for 5 hours, respectively.
Ahmad Yousefi Parchin Oliya, Mohammad Azadi, Mohammad Sadegh Aghareb Parast, Mehdi Mokhtarishirazabad, Akbar Heidarzadeh   +4 more
wiley   +1 more source

Nonisothermal dissolution kinetics on Mg17Al12 intermetallic in Mg-Al alloys

, 2022
In this work, nonisothermal dissolution of intermetallic Mg17Al12 in Mg-Al alloy has been firstly studied via Differential Scanning Calorimetry-DSC, X-Ray Diffraction-XRD and Scanning Electron Microscope-SEM as well as CALPHAD_based dissolution models ...
Renhai Shi
core   +1 more source