نتایج جستجو برای: آلیاژ al 7075 t6
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در این پروژه تاثیر مواد جوانه زای حاوی تیتانیم و بور (al-5ti-1b) و زیرکنیم (al-15zr)، همراه با اثر عناصر نادر خاکی (misch metal) بر خواص کششی و ریز ساختار آلیاژ al-12zn-3mg-2.5cu بررسی شد. دو دسته از عناصر میش متال یعنی غنی از سریم (ce base) و غنی از لانتانیم (la base) مورد استفاده قرار گرفت. مقدار بهینه جوانه زاها که 05/0 درصد تیتانیم و 3/0 درصد زیرکنیم است، جداگانه به همراه 1/0، 3/0، 5/0، 1، ...
In present study, the effect of heat treatment after friction stir welding dissimilar welds T6-7075 and T4-2024 aluminum alloys were investigated. Friction stir welding was performed at a constant rotation speed of 1140 rpm and welding speed 32 mm/min. After welding samples are taken under various heat treatment processes at different aging temperature and time period. Microstructural observati...
ABSTRAK Aluminium merupakan logam yang paling banyak digunakan setelah baja, dengan karakteristik utamanya adalah ringan (berat jenis = 2.7 g/cm3), memiliki konduktivitas panas dan listrik tinggi, ketahanan korosi baik. Penggunaan aluminium menempati urutan kedua besi baja sebagai bahan untuk komponen industri otomotif, salah satu penggunaanya yaitu berupa pada mobil. seri 7075 mana sifat baik ...
In the last decades, many catastrophic events due to rupture of metallic components have been traced back fretting fatigue. order avoid failures such a contact phenomenon, researchers focused on fatigue behaviour different materials. present work, an experimental campaign carried out Al 7075-T6 aluminium alloy is simulated by employing multiaxial criterion proposed for The configuration flat-to...
This article addresses diagnosis and prognosis of evolving fatigue crack damage in polycrystalline alloy structures. It presents a statistically inspired recursive method for in situ estimation of the remaining useful life in machinery components, based on real-time measurements. The underlying algorithm is built upon (a) symbolic dynamic filtering of (online) ultrasonic sensor data and (b) Kar...
In the present article, RRA, T73 and T6 heat treatments were carried out to improve mechanical properties of 7075 aluminum alloy and its hardness, tensile and bending strengths were evaluated. For this purpose, solution annealing was performed at 530 ºC for 16 h. For T6 treatment, aging was executed at 150 ºC for 24 h after solution annealing. In T73, aging treatment was done in two s...
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