نتایج جستجو برای: c master alloy
تعداد نتایج: 1139453 فیلتر نتایج به سال:
The creep phenomenon is considered as one of the most important deformation mechanisms under working conditions. The present study has examined the microstructure and creep properties of Sn-9.0Zn-0.5Al solder alloy after adding a small amount of Antimony (Sb). Nominal compositions of Sb additions were chosen to be 0, 0.5, 1.0, and 1.5 wt.%. The minimum strain rate was reduced for the Sb contain...
In this work, the effects of master alloy composition and annealing temperature on amorphization crystallization behavior Fe-W-B powders prepared by gas atomization using compacts Fe, W B powder mixture were systematically studied. The results show that only with high content (19.9 at.%) (13.6 six alloys studied yielded amorphous powders. alloying elements are believed to have a glass-forming a...
The Master-alloy (MA) alloy route to promote a liquid phase during sintering has great potential reduce costs in low alloyed sintered steels, meanwhile enabling the introduction of innovative systems with Cr, Mn and Si. However, order successfully modify performance multi requirements must be met, including, for example, solubility base material, compatibility usual atmospheres, homogeneous dis...
Low temperature, Sn-based Pb-free solders were developed by making alloy additions to the starting material, 96.5Sn-3.5Ag (mass%). The melting behavior was determined using Differential Scanning Calorimetry (DSC). The solder microstructure was evaluated by optical microscopy and electron probe microanalysis (EPMA). Shear strength measurements, hardness tests, intermetallic compound (IMC) layer ...
In this report, vulcan XC-72 supported PtNi alloy catalyst nanoparticles were synthesized by electroless deposition method using NaBH4 as a reduction agent. The properties of the synthesized Pt-Ni/C catalysts were investigated and evaluated. Transmission electron microscopy (TEM) results showed that PtNi alloy catalysts dispersed well on the carbon supports and their particle size was in the ra...
This study assessed whether there are differences in marginal fit between laser-fusion and conventional techniques to produce fixed dental prostheses (FDPs). A master steel die with 2 abutments was produced to receive a posterior 4-unit FDPs and single copings. These experimental models were divided into three groups (n = 20/group) manufactured: group 1, Ni-Cr alloy, with a lost-wax casting tec...
Corrosion and metal release mechanisms of CoCrMo alloys are at human biological conditions not fully understood. The main objective of this master thesis was to investigate whether the Vroman effect influences the extent of metal release from CoCrMo alloy in mixed protein solutions. The project focuses on the corrosion properties and release of cobalt (Co), chromium (Cr) and molybdenum (Mo) fro...
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