دانلود رایگان مقاله لاتین شبیه سازی فرومغناطیس از سایت الزویر
عنوان فارسی مقاله:
شبیه سازی و اندازه گیری ناخالصی فرومغناطیس در دیسک توربین موتور هواپیما غیر مغناطیسی با استفاده از مغناطیس سنج فلوکس گیت
عنوان انگلیسی مقاله:
Simulation and measurement of ferromagnetic impurities in non-magnetic aeroengine turbine disks using fluxgate magnetometers
سال انتشار : 2015
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مقدمه انگلیسی مقاله:
1. Introduction
Aeroengine turbine disks often consist of paramagnetic, that means non-ferromagnetic Nickel based alloys. Sometimes, parasitic small ferromagnetic particles can be included in these disks that may decrease the mechanical stability. For this reason, in case of a suspicion disks are to be analysed with respect to ferromagnetic inclusions. These inclusions generate a magnetic density which can be measured by a flux gate magnetometer using the magnetic remanence method [1]. The detection principle of ferromagnetic impurities in non-magnetic metallic materials is based on their remanence. Before such a measurement can be carried out, the aeroengine turbine disks are premagnetised in axial direction. As ferromagnetic materials show the well-known hysteresis behaviour, those materials can be magnetised by a strong magnetic field which drives the magnetic material into saturation. When removing the magnetic field, the remanence is left. This remaining flux density is used to detect them in non-magnetic materials.
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کلمات کلیدی:
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