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.