نتایج جستجو برای: fe al si intermetallic compound
تعداد نتایج: 692581 فیلتر نتایج به سال:
The Laser Engineered Net Shaping (LENS) technique was combined with direct synthesis to fabricate L21-ordered Fe-Al-Ti based intermetallic alloys. It was found that ternary Fe-Al-Ti alloys can be synthesized using the LENS technique from a feedstock composed of a pre-alloyed Fe-Al powder and elemental Ti powder. The obtained average compositions of the ternary alloys after the laser deposition ...
The role of Mg2Si in the electrochemical behavior of Al-Si-Mg aluminum alloys has been studied using four experimental aluminum alloys with variations in the Si/Mg molar ratio (A1-0.12, A2-0.49, A3-0.89, A4-1.05), in neutral aerated 0.1M NaCl solutions. Accordingly, the corrosion potential in open circuit (Eoc) and polarization resistance (Rp) were measured. Results show that the augment in Si/...
در این مطالعه غلظت عناصر محلول در خاک و گیاه اطراف کارخانه ذوب مس خاتون آباد (Al, As, Ba, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Pb, Rb, S, Si, Sr, Zn) و تجمع و انتقال این عناصر در گیاه Astragalus sp. با فاکتور انتقال مورد بررسی قرار گرفت. جهت تعیین تغییرات انها از ازمون ANOVA و دانکن استفاده شد. همبستگی عناصر با یکدیگر توسط ضریب همبستگی پیرسون مورد بررسی قرار گرفت. نتایج نشان داد، بیشترین غلظت عناصر مربو...
Using pulsed double electrode-gas metal arc welding, aluminum wires are joined to copper plates with fillers of different fractions silicon. Two layers microstructures formed near the Al-Cu interface: one consists a hypoeutectic microstructure α (Al) + Al2Cu, and other an intermetallic compound (IMC) Al2Cu. Increasing heat input causes increases in thicknesses IMC layer microstructure. Si suppr...
Replacing noble metals in heterogeneous catalysts by low-cost substitutes has driven scientific and industrial research for more than 100 years. Cheap and ubiquitous iron is especially desirable, because it does not bear potential health risks like, for example, nickel. To purify the ethylene feed for the production of polyethylene, the semi-hydrogenation of acetylene is applied (80 × 10(6) ton...
In the present work, the room and elevated temperature mechanical behavior of Al/TiC, high-strength Al-Si/TiC and the elevated temperature-resistant Al-Fe(-V-Si)/TiC composites has been evaluated. The microstructural characteristics of ingot metallurgy (IM) or rapid solidification (RS) Al-Si/TiC and Al-Fe(-V-Si)/TiC composites could be thought of as a combination of the related alloy matrix mic...
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