نتایج جستجو برای: surface hardening
تعداد نتایج: 644573 فیلتر نتایج به سال:
60) to be used for fabricating jewellery, so alloying additions are made to increase the hardness. Platinum jewellery alloys usually have platinum contents of 90 wt.% and higher. The most common alloys are hallmarked as 950 platinum (95 wt.%). Unlike carat gold (Au) jewellery alloys, where relatively large additions can be made (to alter the properties of the alloy such as its hardness or colou...
A phenomenological constitutive law for ferroelectric switching due to multi-axial mechanical and electrical loading of a polycrystalline material is developed. The framework of the law is based on kinematic hardening plasticity theory and has a switching surface in the space of mechanical stress and electric field that determines when non-linear response is possible. The size and shape of the ...
In industrial X-ray CT application, it is particularly important to remove beam hardening artifacts in reconstructed images in order to achieve accurate surface extraction for dimensional inspection of mechanical parts. This paper proposes a new method in the same category as the IAR (iterative artifact reduction) technique with the added advantage of not requiring repeated image reconstruction...
Measurements of submicron spheres and pillars of silicon single crystals have exhibited a strain-hardening capacity equal to or greater than their metallic counterparts. Stress–strain characteristics are reported for diameters ranging from 40 to 400 nm. Evaluations were performed with nanoindentation-based atomic force, scanning and transmission electron microscopies. Values of strain-hardening...
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