Microstructure and high temperature oxidation of modified ductile Ni-resist alloy with higher manganese content

• Main Authors: Rashidi, M. M., Idris, M. H., Shayfull, Z., Ahmad, A. H., Abdullah, M. M. A., Pietrusiewicz, P., Nabialek, M., Garus, J.
• Format: Article
• Language: English
• Published: Polska Akademia Nauk 2022
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.utm.my/id/eprint/100569/1/MohdHasbullahIdris2022_MicrostructureandHighTemperatureOxidationofModifiedDuctile.pdf; http://eprints.utm.my/id/eprint/100569/; http://dx.doi.org/10.12693/APhysPolA.142.56
• Institution: Universiti Teknologi Malaysia

In this study, ductile Ni-resist with a minimum of 18 wt% nickel composition was modified. Up to 12 wt% manganese was added together with 10 wt% nickel to investigate the effects of the alloying elements on its microstructure, mechanical properties and isothermal oxidation behaviour. The results show a higher manganese composition on modified ductile Ni-resist with increased carbide formation, and a slightly decreased elevated temperature tensile strength. The addition of higher Mn [wt%] slightly increased the oxidation resistance. Three different oxide layers were observed on the modified ductile Ni-resist after 25 h hot corrosion at 765?C.