Zobrazeno 1 - 10
of 17
pro vyhledávání: '"550"'
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 14:367-369
1. A study was made of the ductility of semifinished products in 6–15% alumina SAP materials at temperatures of 20–550°C. The elongation of SAP was found to vary anomalously as a function of temperature. It was established that the elongation an
Publikováno v:
Metallurgical and Materials Transactions A. 51:2564-2572
Grade 92 ferritic-martensitic steel is a candidate alloy for medium temperature (< 550 °C) components for the supercritical carbon dioxide (s-CO2) Brayton cycle. 1000 hours exposures were performed on base and welded material in s-CO2 at temperature
Publikováno v:
Materials at High Temperatures. 25:1-16
In this study, high temperature erosion-corrosion with trace amounts of added SO(2) and the role of isothermal or thermal gradient conditions are studied. The studies are focused on 304L as the model material, but results for other alloys (Alloy 625
Autor:
Neil C. Hyatt, Zhaoxia Zhou, Papken Eh. Hovsepian, D.B. Lewis, Cornelia Rodenburg, W.M. Rainforth
Publikováno v:
Metallurgical and Materials Transactions A. 38:2464-2478
Hard wear-resistant coatings require excellent oxidation resistance for high-speed machining operations. Moreover, the oxide formed is integral to the frictional behavior and therefore the success of the coating. The oxidation behavior of TiAlN/VN na
Publikováno v:
Revista de Metalurgia, Vol 50, Iss 1, Pp e003-e003 (2014)
Revista de Metalurgia, Vol 50, Iss 1, p e003 (2014)
Revista de Metalurgia, Vol 50, Iss 1, p e003 (2014)
Cyclic and isothermal oxidation of chromium-molybdenum steel 2.25Cr-1Mo were analyzed at 550 °C and 650 °C during 360 hours in air atmospheres. The cycles were performed with two stages; one of heating in furnace during 90 minutes and then the samp
Publikováno v:
Metallurgical and Materials Transactions A. 49:5878-5887
In this paper, the surface modification of the NiTi alloy was accomplished by anodizing in the ethylene glycol (EG)-based electrolyte and subsequent heat treatment at 823 K (550 °C) for 30 minutes. The field emission scanning electron microscopy ima
Publikováno v:
Metallurgical and materials transactions. B, process metallurgy and materials processing science
The addition of beryllium to Al-Mg alloys is known to cause a dramatic decrease in oxidation; however, the mechanism behind this protective effect is not yet fully understood. To aid in finding an alternative to the toxic Be, a fundamental study of B
Publikováno v:
Metals and Materials International. 23:720-725
AZ91 magnesium alloys containing 0.3% Ca and 0.1% Y were cast, and their oxidation behavior was investigated between 425 and 600 °C in atmospheric air to examine roles of Ca and Y during oxidation. During casting, Ca formed Al2Ca particles intergran
Publikováno v:
Materials at High Temperatures. 34:239-249
To understand the cause of discrepancy between predicted creep life through parametric methods using short term creep test data and creep life obtained from long term experiments, 1000 and 10,000 h duration creep tests were conducted on a 9Cr-1Mo gra
Publikováno v:
Metallurgical and Materials Transactions A. 47:4760-4766
With its historically long popularity in major structural applications, the use of iron (Fe) has also recently begun to be explored as an advanced functional material. For this purpose, it is more advantageous to use Fe as a porous structure, simply