Evaluation of oxide dispersion strengthened (ODS) molybdenum and molybdenum–rhenium alloys
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چکیده
منابع مشابه
Microstructure, Mechanical and Tribological Properties of Oxide Dispersion Strengthened High-Entropy Alloys
A novel metal matrix composite CrMnFeCoNi with Y₂O₃ as reinforcement phase was designed and manufactured by mechanical alloying and spark plasma sintering. After sintering at 900 °C for 5 min, the microstructure consisted of a FCC matrix and Y₂O₃ nanoparticles. The addition of 0.25 wt % Y₂O₃ increased the room temperature tensile strength of the CrMnFeCoNi base from 868 MPa to 1001 MPa, while t...
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The ductile-to-brittle transition (DBT) behavior of two similar Fe-Cr-Al oxide dispersion strengthened (ODS) stainless steels was analyzed following the Cottrell-Petch model. Both alloys were manufactured by mechanical alloying (MA) but by different forming routes. One was manufactured as hot rolled tube, and the other in the form of hot extruded bar. The two hot forming routes considered do no...
متن کاملElectrochemical and Tribological Behaviour of Oxide Dispersion Strengthened Duplex Stainless Steel in Mine Water Environment
Abstract This work investigated the electrochemical and aqueous tribological behavior of hot pressed 2205 duplex stainless steel (DSS). DSS sintered composites of different volume percent (% vol) of partially stabilized zirconia (PSZ) was developed using powder metallurgy (PM) technique. Electrochemical behaviour was studied at room temperature, using open circuit potential and potentiody...
متن کاملReduction in Defect Content of ODS Alloys
Oxide dispersion strengthened (ODS) alloys prepared by mechanical alloying (MA) and subsequent consolidation are of increasing interest for potential application in components for use in power generation and furnace applications. After MA, canned alloy powders are usually subjected to a series of heat treatments. These heat treatments, particularly those at higher temperatures, last long enough...
متن کاملMeasuring the Fracture Toughness of TZM and ODS Molybdenum Alloys using Standard and Sub-Sized Bend Specimens
Oxide Dispersion Strengthened (ODS) and TZM molybdenum have excellent creep resistance and strength at high temperatures in inert atmospheres. Fracture toughness and tensile testing was performed at temperatures between -1 50°C and 450°C to characterize 6.35 mm thick plate material of ODS and TZM molybdenum. A transition from low fracture toughness values (5.8 to 29.6 MPaJm) to values > 30 MPaJ...
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ژورنال
عنوان ژورنال: International Journal of Refractory Metals and Hard Materials
سال: 2000
ISSN: 0263-4368
DOI: 10.1016/s0263-4368(00)00028-7