نتایج جستجو برای: az31b

تعداد نتایج: 336  

In this study, ceramic coatings were prepared on AZ31B Mg alloy by plasma electrolytic oxidation technique in electrolytes containing sodium fluoride (KF), sodium silicate (Na2SiO3.5H2O) and different potassium hydroxide (KOH) concentrations. The electrochemical behavior of AZ31B alloy and plasma electrolytic oxidation coatings was studied by potentiodynamic polarization, electrochemical impeda...

2013
J. C. Outeiro F. Rossi G. Fromentin G. Poulachon G. Germain A. C. Batista

The corrosion resistance of magnesium alloys depends mainly on its surface integrity. Previous experimental studies have shown that machining can induces small (nano-scale) grain size, compressive residual stresses and basal plane crystallographic texture, which significantly improve the corrosion resistance of magnesium alloy. These studies have focused on the positive effects of cryogenic coo...

Journal: :Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2013
Jun-Ho Park Tae-Hong Ahn Hyun-Sik Choi Jung-Man Chung Dong-Ik Kim Kyu Hwan Oh Heung Nam Han

Cast AZ31B-H24 magnesium alloy, comprising Mg with 3.27 wt% Al and 0.96 wt% Zn, was cold rolled and subsequently annealed. Global texture evolutions in the specimens were observed by X-ray diffractometry after the thermomechanical processing. Image-based microstructure and texture for the deformed, recrystallized, and grown grains were observed by electron backscattered diffractometry. Recrysta...

Journal: :international journal of advanced design and manufacturing technology 0
mohamad ali khayamian iran university of science and technology hamid jahed university of waterloo

the global environmental concerns have put the light weighting of structures on the fore front of the research in transportation industry. among other light weight alloys, the transportation industry is considering magnesium intensive light body-in-white structure in automotive applications. although the research in modeling technique areas is very active, a suitable practical model mimicking t...

Journal: :Metals 2022

The influence of heat treatment on the coating microstructure, nanomechanical, and corrosion fatigue properties solid-state deposition AA7075 aluminum alloy AZ31B cast Mg is studied in detail. Transmission electron microscopy (TEM) microstructural analysis shows columnar grain at interface AA7075/AZ31B. Electron backscatter diffraction (EBSD) observation discovered elongated grains with a high ...

2016
Tielong Li Zhenshan Wang

Friction stir lap welding (FSLW) experiment has been conducted on 3mm thick AZ80 extruded sheet and 2.3mm thick AZ31B rolled sheet. The influence of the shape of the taper thread mixing head on microstructure has been discussed. Pores forming, hooked defects, interface migration, tissue distribution have been analyzed. The organization of both sides of nugget zone (NZ) is arranged diagonally ab...

2014
G.Surya Prakash Rao Abhijith Datta

This paper deals with Friction stir welding of AZ31B Mg alloy by using H13 Tool at different rotational speeds and welding speeds .Experiments were conducted according to L4 Orthogonal array which was suggested by Taguchi. Optimum parameters for optimum Tensile strength, Hardness and Ductility were found with the help of S/N ratios. Therefore optimization of input process parameter is required ...

Journal: :Metals 2022

The use of a Zn/Ag–Cu–Zn/Zn multi-interlayer was observed to avoid the formation Mg–Al binary intermetallic compounds (IMCs), which cause embrittlement and low strength bonding when dissimilar metals such as Mg/Al are joined using ultrasound-assisted transient liquid phase (U-TLP). change in microstructure mechanical properties AZ31B/LY12 joints at 410, 440, 460 °C with prolonging ultrasonic tr...

Journal: :Metallurgical and Materials Transactions A 2012

هدف از این پژوهش مقایسۀ ریزساختار، ریزسختی، مقاومت به سایش، و مقاومت به خوردگی سه کامپوزیت‌ سطحی حاوی نانوذرات سیلیکا، نانوذرات گرافیت و مخلوط نانوذرات سیلیکا و گرافیت تولیدشده به روش اصطکاکی اغتشاشی بر سطح آلیاژ منیزیم AZ31B بود. نتایج، پس از چهار پاس انجام فرایند اصطکاکی اغتشاشی، نشان داد متوسط اندازه دانه برای کامپوزیت حاوی سیلیکا، گرافیت، و مخلوط سیلیکا و گرافیت در ناحیه هم‌زده به ترتیب 82%...

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