نتایج جستجو برای: al3ti

تعداد نتایج: 96  

In order to improve the oxidation and hot corrosion resistance of steels, various elements including aluminum, chromium, silicon, titanium or combination of these elements can be diffused on to the surface of steel. In this study, aluminum and titanium were simultaneously co-deposited onto the AISI 430 ferritic stainless steel substrate by the pack cementation process. Coating was examined by s...

داوود قاسمی , , سهیل میرطالبی, ,

In the present study, pure Aluminum powder with 5%wt Titanium Dioxide was mechanically milled at different times. Using phase analysis through X-ray diffraction (XRD), it was found that increasing of the milling times over 10 hours causes the reduction of Titanium by Aluminum and formation of Al2O3 in the structure. Also, it was shown that if the process persists, Aluminum reacts with Titanium ...

Journal: :Nucleation and Atmospheric Aerosols 2021

By lowering the copper with a tiny amount of Mg, AA2519 emerged as an upgrade version AA2219 Al-alloy. The modification is intended to improve ballistic resistance and strength weight ratio. Despite its improved properties, it was facing some problems due welding. Formation oxide layers, solidification cracking, porosity are significant raised during Given above, present work planned investigat...

Journal: :Advances in Materials Science and Engineering 2021

The present study was performed on A356 and B319 alloys in mechanically stirred or degassed condition. Melts were Sr-modified grain-refined. Hydrogen content varied from less than 0.1 ml/100 g Al to ∼0.4 Al; Fe increased 0.8% alloy. Lanthanum cerium added as 99.5% pure metals. Two main techniques used investigate porosity formation: fracture surface of tensile fatigue test bars, reduced pressur...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مواد 1393

امروزه آلومینیوم و آلیاژهای آن به عنوان یکی از مهمترین مواد مهندسی مطرح می باشند چرا که خواص مطلوب آنها از قبیل نسبت استحکام به وزن بالا در آلومینیوم¬های آلیاژی، مقاومت به خوردگی نسبتاً خوب و هدایت الکتریکی و گرمایی زیاد موجب استفاده گسترده از آنها در کاربردهای مختلف و متنوع شده است. علیرغم این خواص مطلوب، چالش هایی نظیر مقاومت سایشی و مقاومت خزشی کم کاربرد این آلیاژها را در برخی موارد محدود نمو...

2018
Haixiang Chen Dejun Kong

An arc-sprayed amorphous Al–Ti–Ni coating on S355 structural steel was processed by laser remelting (LR) at powers of 600, 800, and 1000 W. The surface-cross-sectional morphologies, chemical element distributions, and phase compositions of the as-obtained Al–Ti–Ni coatings were analyzed using a scanning electron microscope (SEM), energy-dispersive spectrometer (EDS), and X-ray diffractometer (X...

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