Effects of Process Parameters on Microstructure and High-Temperature Oxidation Resistance of Laser-Clad IN718 Coating on Cr5Mo Steel
نویسندگان
چکیده
Cr5Mo steel with high thermal strength is frequently applied as the material for hydrocracking furnace tubes. Nonetheless, tubes are prone to failure in a high-temperature environment, threatening production safety. Considering that IN718 nickel-base superalloy has favorable oxidation resistance, coating was fabricated on substrate through laser cladding. The effect of process parameters resistance cladding investigated. results confirm power and scanning speed affected eutectic quantity precipitation this layer, positively correlated mass gain coating. behavior could be divided into surface oxidation, intergranular corrosion, shedding. more significant impact resistance. When 15 mm/s, cracks originating heat-affected zone exert negative
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ژورنال
عنوان ژورنال: Coatings
سال: 2023
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings13010197