بانک مقالات مهندسی مواد و متالورژی

xa0 Aluminium or aluminum (in North American English) is a chemical element in the boron group with symbolxa0Al and atomic numberxa013. It is a silvery-white, soft, nonmagnetic, ductile metal. Aluminium is the third most abundant element in the Earth's crust (after oxygen and silicon) and its most abundant metal. Aluminium makes up about 8% of the crust by mass, though it is less common in the mantle be...

فولاد زنگ نزن آستنیتی (Austenitic Stainless Steel) اساسا آلیاژهای سهتایی Fe-Cr-Ni با 20-16% کروم و 20-7% نیکل میباشد. از آنجا که ساختار این فولادها در تمام دماهای عملیات حرارتی، آستنیت (آهن γ) باقی میماند، به آنها فولادهای زنگ نزن آستنیتی گویند. میتوان مقداری از نیکل این آلیاژها را با منگنز جایگزین کرد در حالی که ساختار آنها آستنیت باقی خواهد ماند. در این گروه آلیاژهای CH-20 ،CK-20 ،CN-7M ...

Arc weldingxa0is a process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals when cool result in a binding of the metals. It is a type ofxa0weldingxa0that uses axa0welding power supplyxa0to create anxa0electric arcxa0between an electrode and the base material to melt the metals at the welding point. They can use eitherxa0directxa0(DC) orxa0alteating...

The associate of applied science degree in Welding Technology is a two year program that prepares graduates to enter the field of welding. A graduate with this degree should have a strong foundation in welding and be able to advance to the upper pay level grades at a much higher pace than those untrained.xa0 The program prepares the graduate in the selection of the right equipment; selection of filler metals; pre, intermediate and post heat treatment of welded metals; and proper weld techniques....

Aluminium or aluminum (in North American English) is a chemical element in the boron group with symbolxa0Al and atomic numberxa013. It is a silvery-white, soft, nonmagnetic, ductile metal. Aluminium is the third most abundant element in the Earth's crust (after oxygen and silicon) and its most abundant metal. Aluminium makes up about 8% of the crust by mass, though it is less common in the mantle below. Aluminium metal is so chemically reactive that native specimens are rare and limited to extre...

xa0 Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used fo...