Tīmeklis1991. gada 1. sept. · Up to temperatures of 600 K (Fe) and 700 K (V), retrapping was dominated by irradiation-induced vacancies. At higher temperatures diffusion times became unmeasurably small. Retention of helium in the specimens indicated that di-helium clusters are stable up to 673 K in Fe and up to 773 K in V. Desorption after … TīmeklisFe 44 B KB UNI :: Total Materia. Finding materials and property data at the click of a button. By registering for the Total Materia FREE Trial it is possible to search and view the property data for over 450,000 alloys as well as find and compare equivalent materials from over 69 countries/standards in the unique, international Total Materia ...
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Tīmeklis2024. gada 5. maijs · Paul measured the impurity diffusion coefficients of B in fcc-Fe from 1173 K to 1253 K by the tracer diffusion coefficient. Their experimental data are used in this assessment. ... The fraction of the primary fcc-Fe phase rapidly decreases from 2.44 pct at wheel speeds of 15 m/s to 1.62 pct at a wheel speed of 35 m/s, then … Tīmeklis2008. gada 29. aug. · The authors observed tunnel magnetoresistance (TMR) ratio of 604% at 300 K in Ta ∕ Co 20 Fe 60 B 20 ∕ Mg O ∕ Co 20 Fe 60 B 20 ∕ Ta pseudo-spin-valve magnetic tunnel junction annealed at 525 ° C. banda duralast 315k4
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Tīmeklis2024. gada 2. janv. · An experimental study of the phase equilibria of the B-Cr-Fe ternary system at 873 K by means of x-ray diffraction and scanning electron microscopy has been carried out. Iron and chromium solid solutions, six chromium borides Cr2B, Cr5B3, CrB, Cr3B4, CrB2 and CrB4, two iron borides Fe2B and FeB, intermetallic σ … TīmeklisFe B 44 k (acciaio duro): caratterizzato da una tensione di rottura non inferiore a 540 N/mm2; da una tensione di snervamento non inferiore a 430 N/mm2 e da un … Tīmeklisdell' acciaio Fe B 44k: Tensione caratteristica di snervamento ≥430 N/mm² Tensione caratteristica di rottura ≥540 N/mm² Allungamento A5 ≥12 Tensioni ammissibili … arti dhandhanggula yogyanira kang para prajurit