In this study, Fe-based amorphous coatings were fabricated on 304 stainless steel by highvelocity oxyfuel (HVOF). Moreover, the properties of Fe-based amorphous coatings heattreated at 150°C and 250°C were investigated. The XRD analysis shows that the structure of heat-treated amorphous coatings is all amorphous, and the porosity of heat-treated amorphous coatings is lower than that of original amorphous coatings. With the heat-treated temperature increasing, the corrosion resistance of amorphous coatings is improved in artificial seawater. Compared with the original coatings, the heat-treated amorphous coatings have great creep resistance. The wear resistance of heat-treated amorphous coatings is excellent than original amorphous coatings in artificial seawater and dry friction condition. The experiment results point out that the heat-treated amorphous coatings have excellent properties, which can improve properties of Fe-based amorphous coatings.
(Zr0.6336Cu0.1452Ni0.1012Al0.12)100- xEr x( x = 0∼6) bulk metallic glasses were fabricated by copper mould suction casting method, and the effect of Er on properties was studied. The compressive plastic strain (εp) and compressive strength (σmax) at room temperature increases first and then decreases with the increase of Er content. The compressive plastic strain (εp) of the specimen is 35.1% when x = 2.6, which is about eight times than that of the specimen with x = 0. The compressive strength (σmax) is 2513 MPa, which is much higher than that of the specimen with x = 0. It indicates that Zr-based bulk metallic glasses could be strengthened and toughened by adding Er. The thermal stability decreases gradually and the glass-forming ability increases first and then decreases with the increase of Er content.
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